openfang-rail

Zero-cost price index and gasless x402 quote generator — Instant zero-cost pricing hook for code402 tools. Returns the live price, an opaque quote_id, TTL, and the settlement URL. Free forever — feeds the price index into an agent planner's context without creating any financial obligation. If the planner acts on the quote, it hits the settlement_url with an EIP-3009 signed voucher.

Clean markdown scraper — Fetch a public web page by URL (or take your HTML) and return Markdown plus headings. No JavaScript rendering. Result carries a signed receipt.

Context distill — Deterministic text digest: word count, top-5 most frequent meaningful words (stop words excluded), first sentence, and a keccak-256 content hash. Pure function — no external calls, no ML.

Crypto ticker — Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt.

ERC-20 Token Balance Snapshot — Raw and formatted ERC-20 balanceOf for an address on Base, with decimals read from the token. Result carries a signed receipt.

FX spot price oracle — Reference fiat and stablecoin conversion rate from a static table, not a live feed. Returns rate and inverse; result carries a signed receipt.

GSTIN check (India) — Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.

IBAN Structure and Checksum Check — Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.

IFSC Format Check — Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification.

India Supplier Verification Pack — One call, one receipt: GSTIN + PAN + UPI VPA + IFSC for an Indian counterparty. Four deterministic structural checks, each stating its own scope. Built for cross-border procurement where the buyer is an agent that cannot open an INR account.

Instant JSON schema verifier — Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.

LEI Structure and Checksum Check — Validate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification.

Counterparty Risk Indicators — Evaluate supplied identifiers, domain-age evidence and mismatch signals. Requires a preceding receipt hash. An advisory result is not verified identity, fraud clearance or authorization to release funds.

Verify any XDR-1 receipt — free, stateless, any issuer — Verifies a signed XDR-1 receipt from ANY x402 service: recomputes the canonical digest and recovers the signer, then compares it to the declared signer. Free forever — no account, no quota, no storage (stateless). A valid receipt proves the signer signed that tool call at that timestamp; it does NOT prove funds moved or any business claim.

Address Snapshot & Operator Policy Comparison — Exact EVM-address comparison against the identified address snapshot and existing operator block policy. Current legal status is unknown; is_sanctioned is null. valid=false preserves a local block; valid=null never authorizes a transaction. Names are not screened. Missing, stale or incomplete evidence is explicit; no UN/EU coverage or sanctions clearance is provided.

SWIFT/BIC Structure Check — Check SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity.

Token contract facts (Base) — Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt.

Tx Activity & Contract Detection — Outbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt.

Belgian VAT MOD-97 Check — Check the supported Belgian VAT format and MOD-97 checksum. BE only; not VIES, other EU VAT formats, registration status or tax compliance.

Vendor Identifier Check Pack — Check supplied IBAN, LEI, Belgian VAT and UK company-number fields in one result. Structural checks only; no ownership, registry or fraud clearance.

reconcile=reconcile_commerce(order:obj!,payments:arr!,delivery:obj?,certify:bool?)->XDR1ExceptionReport

screen_entity=screen_sanctions_exact(entity:str!,jurisdiction:str?,wallet:str?)->XDR1SanctionsVerdict

solvency_check=balance_check(wallet:str!,asset:enum[USDC|EURC|ETH]?,min_minor:str?)->XDR1SolvencyProof

verify_id=verify_identifier(kind:enum[iban|lei|vat|gstin|ein|abn|duns|bic|isin|npi|uk_crn|eu_eori|other]!,id:str!,cc:str?)->XDR1Receipt

Zero-cost price index and gasless x402 quote generator — Instant zero-cost pricing hook for code402 tools. Returns the live price, an opaque quote_id, TTL, and the settlement URL. Free forever — feeds the price index into an agent planner's context without creating any financial obligation. If the planner acts on the quote, it hits the settlement_url with an EIP-3009 signed voucher.

Clean markdown scraper — Fetch a public web page by URL (or take your HTML) and return Markdown plus headings. No JavaScript rendering. Result carries a signed receipt.

Context distill — Deterministic text digest: word count, top-5 most frequent meaningful words (stop words excluded), first sentence, and a keccak-256 content hash. Pure function — no external calls, no ML.

Crypto ticker — Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt.

ERC-20 Token Balance Snapshot — Raw and formatted ERC-20 balanceOf for an address on Base, with decimals read from the token. Result carries a signed receipt.

FX spot price oracle — Reference fiat and stablecoin conversion rate from a static table, not a live feed. Returns rate and inverse; result carries a signed receipt.

GSTIN check (India) — Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.

IBAN Structure and Checksum Check — Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.

IFSC Format Check — Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification.

India Supplier Verification Pack — One call, one receipt: GSTIN + PAN + UPI VPA + IFSC for an Indian counterparty. Four deterministic structural checks, each stating its own scope. Built for cross-border procurement where the buyer is an agent that cannot open an INR account.

Instant JSON schema verifier — Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.

LEI Structure and Checksum Check — Validate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification.

Counterparty Risk Indicators — Evaluate supplied identifiers, domain-age evidence and mismatch signals. Requires a preceding receipt hash. An advisory result is not verified identity, fraud clearance or authorization to release funds.

Verify any XDR-1 receipt — free, stateless, any issuer — Verifies a signed XDR-1 receipt from ANY x402 service: recomputes the canonical digest and recovers the signer, then compares it to the declared signer. Free forever — no account, no quota, no storage (stateless). A valid receipt proves the signer signed that tool call at that timestamp; it does NOT prove funds moved or any business claim.

Address Snapshot & Operator Policy Comparison — Exact EVM-address comparison against the identified address snapshot and existing operator block policy. Current legal status is unknown; is_sanctioned is null. valid=false preserves a local block; valid=null never authorizes a transaction. Names are not screened. Missing, stale or incomplete evidence is explicit; no UN/EU coverage or sanctions clearance is provided.

SWIFT/BIC Structure Check — Check SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity.

Token contract facts (Base) — Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt.

Tx Activity & Contract Detection — Outbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt.

Belgian VAT MOD-97 Check — Check the supported Belgian VAT format and MOD-97 checksum. BE only; not VIES, other EU VAT formats, registration status or tax compliance.

Vendor Identifier Check Pack — Check supplied IBAN, LEI, Belgian VAT and UK company-number fields in one result. Structural checks only; no ownership, registry or fraud clearance.

reconcile=reconcile_commerce(order:obj!,payments:arr!,delivery:obj?,certify:bool?)->XDR1ExceptionReport

screen_entity=screen_sanctions_exact(entity:str!,jurisdiction:str?,wallet:str?)->XDR1SanctionsVerdict

solvency_check=balance_check(wallet:str!,asset:enum[USDC|EURC|ETH]?,min_minor:str?)->XDR1SolvencyProof

verify_id=verify_identifier(kind:enum[iban|lei|vat|gstin|ein|abn|duns|bic|isin|npi|uk_crn|eu_eori|other]!,id:str!,cc:str?)->XDR1Receipt

Batch Identifier Checks (up to 50 items) — Run up to 50 supported {tool, value} checks in one request. Each result states its scope. Compare the current batch quote with individual quotes; savings depend on batch size.

Base Block Header Info — Base block header: number, timestamp, transaction count and base fee for the latest or a given block. Result carries a signed receipt.

Calculate cross-border FX savings — Arithmetic comparison of a USDC settlement against comparator percentages YOU supply (bank_fee_pct, custodial_fee_pct) across 14 global fiat currencies. The comparators are assumptions, not measurements of any bank or provider; no protocol fee is deducted on this rail.

Zero-cost price index and gasless x402 quote generator — Instant zero-cost pricing hook for code402 tools. Returns the live price, an opaque quote_id, TTL, and the settlement URL. Free forever — feeds the price index into an agent planner's context without creating any financial obligation. If the planner acts on the quote, it hits the settlement_url with an EIP-3009 signed voucher.

Clean markdown scraper — Fetch a public web page by URL (or take your HTML) and return Markdown plus headings. No JavaScript rendering. Result carries a signed receipt.

Context distill — Deterministic text digest: word count, top-5 most frequent meaningful words (stop words excluded), first sentence, and a keccak-256 content hash. Pure function — no external calls, no ML.

Crypto ticker — Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt.

ERC-20 Token Balance Snapshot — Raw and formatted ERC-20 balanceOf for an address on Base, with decimals read from the token. Result carries a signed receipt.

FX spot price oracle — Reference fiat and stablecoin conversion rate from a static table, not a live feed. Returns rate and inverse; result carries a signed receipt.

GSTIN check (India) — Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.

IBAN Structure and Checksum Check — Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.

IFSC Format Check — Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification.

India Supplier Verification Pack — One call, one receipt: GSTIN + PAN + UPI VPA + IFSC for an Indian counterparty. Four deterministic structural checks, each stating its own scope. Built for cross-border procurement where the buyer is an agent that cannot open an INR account.

Instant JSON schema verifier — Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.

LEI Structure and Checksum Check — Validate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification.

Counterparty Risk Indicators — Evaluate supplied identifiers, domain-age evidence and mismatch signals. Requires a preceding receipt hash. An advisory result is not verified identity, fraud clearance or authorization to release funds.

Verify any XDR-1 receipt — free, stateless, any issuer — Verifies a signed XDR-1 receipt from ANY x402 service: recomputes the canonical digest and recovers the signer, then compares it to the declared signer. Free forever — no account, no quota, no storage (stateless). A valid receipt proves the signer signed that tool call at that timestamp; it does NOT prove funds moved or any business claim.

Address Snapshot & Operator Policy Comparison — Exact EVM-address comparison against the identified address snapshot and existing operator block policy. Current legal status is unknown; is_sanctioned is null. valid=false preserves a local block; valid=null never authorizes a transaction. Names are not screened. Missing, stale or incomplete evidence is explicit; no UN/EU coverage or sanctions clearance is provided.

SWIFT/BIC Structure Check — Check SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity.

Token contract facts (Base) — Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt.

Tx Activity & Contract Detection — Outbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt.

Belgian VAT MOD-97 Check — Check the supported Belgian VAT format and MOD-97 checksum. BE only; not VIES, other EU VAT formats, registration status or tax compliance.

Vendor Identifier Check Pack — Check supplied IBAN, LEI, Belgian VAT and UK company-number fields in one result. Structural checks only; no ownership, registry or fraud clearance.

Batch Identifier Checks (up to 50 items) — Run up to 50 supported {tool, value} checks in one request. Each result states its scope. Compare the current batch quote with individual quotes; savings depend on batch size.

Base Block Header Info — Base block header: number, timestamp, transaction count and base fee for the latest or a given block. Result carries a signed receipt.

Calculate cross-border FX savings — Arithmetic comparison of a USDC settlement against comparator percentages YOU supply (bank_fee_pct, custodial_fee_pct) across 14 global fiat currencies. The comparators are assumptions, not measurements of any bank or provider; no protocol fee is deducted on this rail.

Zero-cost price index and gasless x402 quote generator — Instant zero-cost pricing hook for code402 tools. Returns the live price, an opaque quote_id, TTL, and the settlement URL. Free forever — feeds the price index into an agent planner's context without creating any financial obligation. If the planner acts on the quote, it hits the settlement_url with an EIP-3009 signed voucher.

Clean markdown scraper — Fetch a public web page by URL (or take your HTML) and return Markdown plus headings. No JavaScript rendering. Result carries a signed receipt.

Context distill — Deterministic text digest: word count, top-5 most frequent meaningful words (stop words excluded), first sentence, and a keccak-256 content hash. Pure function — no external calls, no ML.

Crypto ticker — Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt.

ERC-20 Token Balance Snapshot — Raw and formatted ERC-20 balanceOf for an address on Base, with decimals read from the token. Result carries a signed receipt.

FX spot price oracle — Reference fiat and stablecoin conversion rate from a static table, not a live feed. Returns rate and inverse; result carries a signed receipt.

GSTIN check (India) — Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.

IBAN Structure and Checksum Check — Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.

IFSC Format Check — Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification.

India Supplier Verification Pack — One call, one receipt: GSTIN + PAN + UPI VPA + IFSC for an Indian counterparty. Four deterministic structural checks, each stating its own scope. Built for cross-border procurement where the buyer is an agent that cannot open an INR account.

Instant JSON schema verifier — Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.

LEI Structure and Checksum Check — Validate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification.

Counterparty Risk Indicators — Evaluate supplied identifiers, domain-age evidence and mismatch signals. Requires a preceding receipt hash. An advisory result is not verified identity, fraud clearance or authorization to release funds.

Verify any XDR-1 receipt — free, stateless, any issuer — Verifies a signed XDR-1 receipt from ANY x402 service: recomputes the canonical digest and recovers the signer, then compares it to the declared signer. Free forever — no account, no quota, no storage (stateless). A valid receipt proves the signer signed that tool call at that timestamp; it does NOT prove funds moved or any business claim.

Address Snapshot & Operator Policy Comparison — Exact EVM-address comparison against the identified address snapshot and existing operator block policy. Current legal status is unknown; is_sanctioned is null. valid=false preserves a local block; valid=null never authorizes a transaction. Names are not screened. Missing, stale or incomplete evidence is explicit; no UN/EU coverage or sanctions clearance is provided.

SWIFT/BIC Structure Check — Check SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity.

Token contract facts (Base) — Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt.

Tx Activity & Contract Detection — Outbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt.

Belgian VAT MOD-97 Check — Check the supported Belgian VAT format and MOD-97 checksum. BE only; not VIES, other EU VAT formats, registration status or tax compliance.

Vendor Identifier Check Pack — Check supplied IBAN, LEI, Belgian VAT and UK company-number fields in one result. Structural checks only; no ownership, registry or fraud clearance.

Token contract facts (Base) — Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt.

Token contract facts (Base) — Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt.

Crypto ticker — Current spot price (USD) for a symbol via the public CoinGecko API; common tickers (btc, eth, …) are mapped to CoinGecko ids automatically. Cached 60s server-side; preflighted so you never pay during an API outage.

ERC-20 Token Balance Snapshot — Raw + formatted ERC-20 balanceOf for an address at any token contract on Base. Decimals read on-chain. Preflighted so you never pay during an RPC outage.

FX spot price oracle — Reference fiat & stablecoin conversion rates from a static hardcoded table (USDC, EUR, GBP, JPY and others). This is NOT a live market feed and NOT a spot quote: the rates do not move with the market and carry no as-of date. Use for illustrative conversion only. A pair outside the table returns a 1.0 fallback and is flagged with known:false and a warning.

Instant JSON schema verifier — Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.

Tx Activity & Contract Detection — On-chain activity snapshot: total outbound nonce, bytecode check (is_contract), and funded status on Base. Preflighted before payment.

Crypto ticker — Current spot price (USD) for a symbol via the public CoinGecko API; common tickers (btc, eth, …) are mapped to CoinGecko ids automatically. Cached 60s server-side; preflighted so you never pay during an API outage.

ERC-20 Token Balance Snapshot — Raw + formatted ERC-20 balanceOf for an address at any token contract on Base. Decimals read on-chain. Preflighted so you never pay during an RPC outage.

FX spot price oracle — High-precision fiat & stablecoin foreign exchange spot rates (USDC, EUR, GBP, JPY, etc.) computed from TWAP edge oracles.

Instant JSON schema verifier — Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.

Tx Activity & Contract Detection — On-chain activity snapshot: total outbound nonce, bytecode check (is_contract), and funded status on Base. Preflighted before payment.

India Supplier Verification Pack — One call, one receipt: GSTIN + PAN + UPI VPA + IFSC for an Indian counterparty. Four deterministic structural checks, each stating its own scope. Built for cross-border procurement where the buyer is an agent that cannot open an INR account.

Pre-Disbursement Due Diligence Guard (Check Before You Send) — MANDATORY COUNTERPARTY DUE DILIGENCE: Verifies counterparty before releasing invoice payments, contractor payouts, or wires. Screens ISO 13616 IBAN checksum, RDAP domain age (<30d = scam), disposable email domains, UK CRN/LEI format, and BEC cross-jurisdiction mismatches. Produces signed XDR-1 receipt for compliance.

Verify any XDR-1 receipt — free, stateless, any issuer — Verifies a signed XDR-1 receipt from ANY x402 service: recomputes the canonical digest and recovers the signer, then compares it to the declared signer. Free forever — no account, no quota, no storage (stateless). A valid receipt proves the signer signed that tool call at that timestamp; it does NOT prove funds moved or any business claim.

OFAC SDN & Sanctions List Edge Screener — Deterministic screen of EVM addresses and jurisdictions against a curated local blocklist of sanctioned addresses and prohibited jurisdictions. Address- and jurisdiction-level only — this is NOT name-based screening and NOT a complete OFAC SDN check. Absence of a match is not a sanctions clearance; use as one informational input alongside your own compliance process.

ABA routing check (US) — Validate a US ABA routing number by its (3,7,1)-weight mod-10 checksum.

ABN check (Australia) — Validate an Australian Business Number by its mod-89 checksum (11 digits).

Balance check (ETH + token) — On-chain balance snapshot: native ETH balance plus one ERC-20 token balance (defaults to USDC on Base), with raw units and decimals provenance. Preflighted so you never pay during an RPC outage.

Block info — Latest (or specified) Base block header: number, timestamp, transaction count, base fee. Preflighted so you never pay during an RPC outage.

CNPJ check (Brazil) — Validate Brazilian CNPJ (14 digits) with dual Mod-11 check digits.

UK company-number format — Validate UK Companies House number format (not existence).

Context distill — Deterministic text digest: word count, top-5 most frequent meaningful words (stop words excluded), first sentence, and a keccak-256 content hash. Pure function — no external calls, no ML.

Crypto ticker — Current spot price (USD) for a symbol via the public CoinGecko API; common tickers (btc, eth, …) are mapped to CoinGecko ids automatically. Cached 60s server-side; preflighted so you never pay during an API outage.

E.164 phone check — Validate a phone number's E.164 structure (+CC, 8-15 digits, no leading zero).

EAN-13 check — Validate an EAN-13 barcode by its mod-10 checksum (odd positions x1, even positions x3).

EIN format check (US) — Validate US Employer Identification Number FORMAT (NN-NNNNNNN). No public EIN checksum exists.

ERC-20 balance — Raw + formatted ERC-20 balanceOf for an address at any token contract (decimals read on-chain when available; common-list/18 fallback is labeled). Preflighted so you never pay during an RPC outage.

ISBN check — Validate an ISBN-10 (mod-11) or ISBN-13 (1,3-weight mod-10) checksum.

ISIN check — Validate an ISIN (ISO 6166) by structure and Luhn mod-10 check digit over the A=10…Z=35 converted string.

ISO 20022 to x402 intent (SWIFT replacement) — Autonomous banking migration: translate legacy ISO 20022 pain.001/pacs.008 XML directly into zero-float EIP-3009 Base L2 USDC payment intent.

ISO 20022 syntax & XXE check — Validate an ISO 20022 banking XML document (pain.001 or pacs.008) with XXE guards and IBAN checksums.

Corporate Number (Japan) — Validate Japanese Houjin Bangou (13 digits, National Tax Agency Mod-9 check digit).

KRA Tax PIN (Kenya) — Validate Kenyan Revenue Authority Tax PIN structure (A/P + 9 digits + 1 letter).

Luhn check — Validate any 12-19 digit number by the Luhn mod-10 algorithm (card-style checksums). Never submit real card numbers.

Rental deposit guard — Rental deposit safety: IBAN checksum + property/deposit country alignment + pre-viewing flag.

Rental listing risk — Explainable rental-fraud risk score over listing red-flag signals (deterministic rule engine).

Rental verdict — One combined, signed rental due-diligence verdict: deposit + landlord entity (LEI/company) + listing risk.

RFC check (Mexico) — Validate Mexican SAT RFC for companies (12 chars) or individuals (13 chars).

SEDOL check — Validate a UK/Ireland security identifier by its (1,3,1,7,3,9)-weight mod-10 checksum.

Settlement history (counterparty proof) — On-chain counterparty check: USDC transfers SENT and RECEIVED by an address over the last ~48h of Base blocks (counts, volumes, sample tx hashes). Preflighted so you never pay during an RPC outage.

Tx activity (count + contract check) — On-chain activity snapshot for an address: total outbound transaction count (nonce), whether the address is a contract (eth_getCode), and a first-funded heuristic (nonce > 0). Preflighted so you never pay during an RPC outage.

USCC check (China) — Validate Chinese Unified Social Credit Code (GB 32100-2015 ISO 7064 Mod-31-3).

OFAC SDN & Sanctions List Edge Screener — Deterministic screen of EVM addresses and jurisdictions against a curated local blocklist of sanctioned addresses and prohibited jurisdictions. Address- and jurisdiction-level only — this is NOT name-based screening and NOT a complete OFAC SDN check. Absence of a match is not a sanctions clearance; use as one informational input alongside your own compliance process.

ABA Routing Number Check (US Fedwire/ACH) — Validate a US ABA routing number by its (3,7,1)-weight mod-10 Fedwire/ACH checksum. Catches mistyped or invalid routing numbers before payment; does NOT prevent transfer reversals or establish the recipient. Returns signed XDR-1 receipt.

ABN Check (Australia) — Validate an Australian Business Number by its mod-89 checksum (11 digits). Required before invoice payment to Australian contractors. Returns signed XDR-1 receipt.

ACI-1 Agent Credit & Trust Rating Lookup — Deterministic agent trust scoring and non-custodial unsettled exposure advisory evaluation (ACI-1). Quantifies counterparty grade (T0-T3), historical success rate, and maximum suggested settlement exposure without uncollateralized lending or float.

Africa Supplier Verification Pack — One call, one receipt: Kenya KRA PIN + settlement IBAN + SWIFT/BIC. Deterministic structural checks for East African trade corridors.

Assured Settlement Record (receipt-bound) — Bind a verified XDR-1 settlement receipt to assured terms and store the record: idempotent by receipt hash (the same receipt never creates twice), 7-day dispute window, verdict_only remedy disclosed. The receipt signature is verified statelessly — that proves the signer signed, never that funds moved. Terms are RECORDS, never payment instruments; premium is invoiced post-hoc; no custody. Returns signed XDR-1 receipt.

Assured Settlement Quote (0.2% lane) — Premium quote for high-stakes settlement assurance: 20 bps standard (15/10 bps at committed annual volumes), $25 min / $25,000 cap, +5 bps POD adder. T0 counterparties refused outright; above the tier advisory cap the lane ESCALATES (POD-1 delivery proof + registered-underwriter insurance referral mandatory). Terms are RECORDS, never payment instruments; settlement moves buyer to seller in full; premium is invoiced post-hoc, never deducted from flow; insurance is referral-only — the operator never underwrites. Returns signed XDR-1 receipt.

Base Balance & Solvency Snapshot — PRE-PAYMENT SOLVENCY PROOF: Snapshot verified native ETH and USDC token balance on Base with raw units and decimals provenance. Preflighted so you never pay during an RPC outage.

Bind 3rd-party insurance policy to transaction — Bind an insurance policy from a REGISTERED directory underwriter to a specific transaction, payment, or B2B invoice, generating an offline-verifiable POL-1 certificate. Bilateral non-custodial agreement with the named underwriter — the gateway neither underwrites nor accredits anyone.

Base Block Header Info — Latest (or specified) Base block header: number, timestamp, transaction count, base fee. Preflighted before payment.

Calculate cross-border FX savings — Arithmetic comparison of a USDC settlement against comparator percentages YOU supply (bank_fee_pct, custodial_fee_pct) across 14 global fiat currencies. The comparators are assumptions, not measurements of any bank or provider; no protocol fee is deducted on this rail.

China Supplier Verification Pack — One call, one receipt: USCC + settlement IBAN + SWIFT/BIC for a Chinese counterparty. Deterministic structure and checksum validation with explicit scope per identifier.

Clean markdown scraper — Transform noisy HTML web documents into clean, LLM-optimized Markdown while preserving semantic headers and links.

Brazil CNPJ Check (Cadastro Nacional da Pessoa Jurídica) — Validate Brazilian corporate tax ID (CNPJ) with official dual mod-11 check digits. Required for Brazilian B2B payments, PIX verification, and vendor due diligence. Returns signed XDR-1 receipt.

UK Companies House Number Verifier — Validate UK Companies House corporate registration format (8 digits, or 2 letters + 6 digits). Run before signing agreements or executing contractor disbursements to UK entities. Returns signed XDR-1 receipt.

Context distill — Deterministic text digest: word count, top-5 most frequent meaningful words (stop words excluded), first sentence, and a keccak-256 content hash. Pure function — no external calls, no ML.

Create AP2 pilot retainer — Provision a pre-cleared AP2 Merchant Pilot invoice ($49.00 USDC) with 50k gasless Base L2 calls and turnkey <code402-widget> setup.

Create B2B contractor invoice — Generate a pre-cleared, gasless B2B settlement invoice on Base L2 with floating piecewise dynamic fee (capped) and dual-rail bank coordinates (JUANA LIMITED Tide / CurrencyCloud).

Crypto ticker — Current spot price (USD) for a symbol via the public CoinGecko API; common tickers (btc, eth, …) are mapped to CoinGecko ids automatically. Cached 60s server-side; preflighted so you never pay during an API outage.

CSP-1 Confidential Terms Commitment & Stealth Announce — Generates cryptographic commitments to commercial terms and formats ERC-5564 dual-key stealth address announcements (CSP-1) for invoice-scale B2B payments on Base L2.

DIP-1 Deterministic Dispute Adjudication — Deterministic machine-to-machine dispute resolution against signed XDR-1 execution receipts (DIP-1). Evaluates verifiable claims (NOT_DELIVERED, TIMEOUT_UNDELIVERED, OUTPUT_MISMATCH, SCHEMA) and issues non-custodial remedies.

E.164 International Phone Check — Validate a phone number's E.164 structure (+CC, 8-15 digits, no leading zero) before dispatching SMS alerts or OTPs. Returns signed XDR-1 receipt.

EAN-13 check — Validate an EAN-13 barcode by its mod-10 checksum (odd positions x1, even positions x3).

EIN Format Check (US) — Validate US Employer Identification Number FORMAT (NN-NNNNNNN). Use during US business counterparty KYB verification. Returns signed XDR-1 receipt.

ERC-20 Token Balance Snapshot — Raw + formatted ERC-20 balanceOf for an address at any token contract on Base. Decimals read on-chain. Preflighted so you never pay during an RPC outage.

FX spot price oracle — High-precision fiat & stablecoin foreign exchange spot rates (USDC, EUR, GBP, JPY, etc.) computed from TWAP edge oracles.

Get B2B invoice status — Inspect live settlement status, on-chain transaction hash, and payment timestamps for any Code402 B2B invoice.

Gulf Supplier Verification Pack — One call, one receipt: UAE TRN + settlement IBAN + SWIFT/BIC. Deterministic structure validation for Gulf trade corridors, scope stated per identifier.

Instant JSON schema verifier — Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.

ISBN Check — Validate an ISBN-10 (mod-11) or ISBN-13 (1,3-weight mod-10) checksum.

ISIN check — Validate an ISIN (ISO 6166) by structure and Luhn mod-10 check digit over the A=10…Z=35 converted string.

BAP-1 ISO 20022 to x402 Intent Mapper — Translates validated ISO 20022 payment instructions (pain.001 / pacs.008) into deterministic EIP-712 payment-intent templates for autonomous x402 Base L2 USDC settlement (BAP-1). Zero custody, no fiat leg.

BAP-1 ISO 20022 Banking Message Validator — Deterministic validation for institutional ISO 20022 XML/JSON payment messages (pain.001 credit transfer, pacs.008 customer credit, camt.053 bank statement) with XML DOCTYPE security guards, BigInt CtrlSum decimal sums, and ISO 13616 / 9362 / 17442 checksums (BAP-1).

ISO 4217 Currency Standard Check & Settlement Mapping — Validate 3-letter alpha or 3-digit numeric currency codes against ISO 4217 standard. Returns minor unit decimals, symbol, official name, countries, and onchain Base L2 settlement token mapping (USDC/EURC).

Japan Corporate Number Check (法人番号 - Houjin Bangou) — Validate 13-digit Japanese Corporate Number assigned by the National Tax Agency using Mod-9 check digit algorithm. Required for Japanese B2B SaaS and enterprise billing. Returns signed XDR-1 receipt.

Japan Supplier Verification Pack — One call, one receipt: 13-digit Corporate Number + settlement IBAN for a Japanese counterparty. Deterministic check digits, explicit scope.

Kenya KRA PIN Check (Kenya Revenue Authority) — Validate Kenyan Revenue Authority Tax PIN structure (A/P followed by 9 digits and checksum character). Required for M-Pesa B2B disbursement and Kenyan remote agency invoicing. Returns signed XDR-1 receipt.

LatAm Supplier Verification Pack — One call, one receipt: Brazilian CNPJ + Mexican RFC + settlement IBAN. Deterministic checks for the two largest LatAm corridors in one paid call.

List registered 3rd-party transaction insurers — List underwriters in the open insurance referral directory. The directory ships EMPTY: an underwriter appears only after it self-registers via /api/insurance/register, and self-registration is not vetting — buyers must perform their own due diligence on any listed counterparty.

Luhn Check Digit Verifier — Validate any 12-19 digit number by the Luhn mod-10 algorithm. Never submit real payment card numbers. Returns signed XDR-1 receipt.

OFAC SDN & Sanctions List Edge Screener — Deterministic screen of EVM addresses and jurisdictions against a curated local blocklist of sanctioned addresses and prohibited jurisdictions. Address- and jurisdiction-level only — this is NOT name-based screening and NOT a complete OFAC SDN check. Absence of a match is not a sanctions clearance; use as one informational input alongside your own compliance process.

India Permanent Account Number (PAN) Format Validator — Deterministic validation of Indian Permanent Account Number (PAN) issued by CBDT / Income Tax Department with 4th-character entity type classification (Individual, Company, Firm, Trust, HUF).

POD-1 Proof-of-Delivery Attestation Verifier — Physical IoT and off-chain service delivery verification using integer E7 point-in-polygon geometry and hardware sensor threshold validation (POD-1). Deterministic integer arithmetic avoids floating-point coordinate drift; verification only, no custody or escrow.

Quote 3rd-party transaction & payment insurance — Compare insurance quotes from underwriters registered in the open referral directory (coverage for transaction, smart-contract, trade-credit, and BEC wire-fraud risk). Returns zero quotes until an underwriter has self-registered; this gateway never underwrites risk itself.

Settlement Reconciliation (ISO 20022 + NACHA) — Deterministic reconciliation verdicts: pain.001/pacs.008 instructions vs camt.053 statements or NACHA ACH files, matched by end-to-end id and BigInt-exact amounts. Verdicts: SETTLED, UNPAID, AMOUNT_MISMATCH, DUPLICATE_PAYMENT, plus unmatched statement entries. Facts computed from the documents only — never inferred, never guessed. Returns signed XDR-1 receipt.

Rental Deposit Safety Guard — CRITICAL ESCROW DEFENSE: Validates rental deposit safety by checking recipient IBAN checksum, matching property/deposit country jurisdiction, and flagging advance pre-viewing payment demands to prevent escrow theft.

Rental Listing Risk & Fraud Engine — Explainable tenancy fraud risk score evaluated across irreversible payment demands, off-platform pressure, stolen photos, and advance wire signals. Deterministic rule engine.

Tenancy Due-Diligence & Anti-Scam Verdict — INSTITUTIONAL TENANCY SHIELD: Single combined, signed rental due-diligence verdict combining deposit IBAN checksum, cross-border jurisdiction, pre-viewing advance wire flags, landlord entity verification, and listing fraud heuristics. Outputs cover-your-agent verification proof.

Mexico RFC Check (Registro Federal de Contribuyentes) — Validate Mexican SAT RFC corporate (12-char) or individual (13-char) tax code and homoclave. Required for Mexican contractor invoicing and SPEI cross-border settlements. Returns signed XDR-1 receipt.

SEDOL Check (UK/Ireland Securities) — Validate a UK/Ireland security identifier by its (1,3,1,7,3,9)-weight mod-10 checksum. Returns signed XDR-1 receipt.

On-Chain Counterparty Settlement History — ON-CHAIN COUNTERPARTY PROOF: Audit USDC transfers sent and received by any EVM address over the last ~48h of Base blocks. Preflighted so you never pay during an RPC outage.

Simulate Spend Sentinel policy defense and delivery predicates — Run synthetic prompt-injection halts, malformed-delivery rejection, and bounded-spend eligibility examples under AP2 envelopes. No live escrow, refund, facilitator or chain action occurs.

Tx Activity & Contract Detection — On-chain activity snapshot: total outbound nonce, bytecode check (is_contract), and funded status on Base. Preflighted before payment.

UAE Tax Registration Number (TRN) Format Validator — Deterministic validation of UAE 15-digit Tax Registration Number (TRN) issued by the Federal Tax Authority (FTA) for VAT purposes.

India UPI Virtual Payment Address (VPA) Validator — Deterministic validation of Indian UPI Virtual Payment Address (VPA / handle) against NPCI guidelines and accredited PSP handle registry (okhdfcbank, okaxis, paytm, ybl, etc.).

China USCC Check (Unified Social Credit Code / 统一社会信用代码) — Validate 18-character Chinese business registration and tax code using GB 32100-2015 ISO 7064 Mod-31-3 checksum. Required for B2B supply chain trade with Chinese manufacturers. Returns signed XDR-1 receipt.

Assured Settlement Record (receipt-bound) — Bind a verified XDR-1 settlement receipt to assured terms and store the record: idempotent by receipt hash (the same receipt never creates twice), 7-day dispute window, verdict_only remedy disclosed. The receipt signature is verified statelessly — that proves the signer signed, never that funds moved. Terms are RECORDS, never payment instruments; premium is invoiced post-hoc; no custody. Returns signed XDR-1 receipt.

Assured Settlement Quote (0.2% lane) — Premium quote for high-stakes settlement assurance: 20 bps standard (15/10 bps at committed annual volumes), $25 min / $25,000 cap, +5 bps POD adder. T0 counterparties refused outright; above the tier advisory cap the lane ESCALATES (POD-1 delivery proof + registered-underwriter insurance referral mandatory). Terms are RECORDS, never payment instruments; settlement moves buyer to seller in full; premium is invoiced post-hoc, never deducted from flow; insurance is referral-only — the operator never underwrites. Returns signed XDR-1 receipt.

Settlement Reconciliation (ISO 20022 + NACHA) — Deterministic reconciliation verdicts: pain.001/pacs.008 instructions vs camt.053 statements or NACHA ACH files, matched by end-to-end id and BigInt-exact amounts. Verdicts: SETTLED, UNPAID, AMOUNT_MISMATCH, DUPLICATE_PAYMENT, plus unmatched statement entries. Facts computed from the documents only — never inferred, never guessed. Returns signed XDR-1 receipt.

Africa Supplier Verification Pack — One call, one receipt: Kenya KRA PIN + settlement IBAN + SWIFT/BIC. Deterministic structural checks for East African trade corridors.

China Supplier Verification Pack — One call, one receipt: USCC + settlement IBAN + SWIFT/BIC for a Chinese counterparty. Deterministic structure and checksum validation with explicit scope per identifier.

Gulf Supplier Verification Pack — One call, one receipt: UAE TRN + settlement IBAN + SWIFT/BIC. Deterministic structure validation for Gulf trade corridors, scope stated per identifier.

India Supplier Verification Pack — One call, one receipt: GSTIN + PAN + UPI VPA + IFSC for an Indian counterparty. Four deterministic structural checks, each stating its own scope. Built for cross-border procurement where the buyer is an agent that cannot open an INR account.

Japan Supplier Verification Pack — One call, one receipt: 13-digit Corporate Number + settlement IBAN for a Japanese counterparty. Deterministic check digits, explicit scope.

LatAm Supplier Verification Pack — One call, one receipt: Brazilian CNPJ + Mexican RFC + settlement IBAN. Deterministic checks for the two largest LatAm corridors in one paid call.