Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"x402-endpoints-x402-endpoints","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
GLEIF LEI Lookup — Look up any Legal Entity Identifier (LEI) against the official GLEIF global registry — returns legal name, status, jurisdiction, legal form and registered address, real-time, worldwide coverage. For regulatory reporting (EMIR/MiFID), KYB and counterparty due-diligence agents.
EU VAT VIES Check — Validate an EU VAT number against the official EU VIES registry across all 27 member states — returns valid/invalid plus the registered company name and address. Distinguishes 'invalid' (number does not exist) from 'service unavailable' (national DB offline). For invoicing, B2B onboarding, KYB and tax-compliance agents.
Polymarket Odds — Live prediction market odds and implied probabilities from Polymarket — give a market id or slug, get each outcome with its probability (0-1), volume, liquidity and resolution status. For event-forecasting, hedging and research agents.
Live Aircraft States — Real-time aircraft states worldwide from adsb.fi open data (ADS-B) — give a bounding box, get every aircraft in the area with live position, altitude, speed, heading and ground status. For travel, logistics and tracking agents. Data by adsb.fi (ODbL).
EV Charging Stations — EV charging stations worldwide from Open Charge Map — give a location and radius, get nearby stations with operator, connector type, power (kW), number of points and status. For routing, fleet and trip-planning agents.
BODACC Announcements — Search the official French BODACC registry (DILA) for company legal announcements: incorporations, modifications, radiations and insolvencies. For credit-risk, supplier-risk, KYB and AML agents.
EU Public Tenders (TED) — Search the official EU TED (Tenders Electronic Daily) for public procurement notices across the 27+ member states by keywords, buyer country and CPV code. For business-development, bid and market-intelligence agents.
EUR-Lex Search — Search official EUR-Lex for EU legislation, treaties, case law and legal acts by keyword — returns CELEX number, title and date. Multilingual. For legal-research, regulatory and compliance agents.
EU Sanctions Screening — Screen a name against the official EU consolidated sanctions list (FISMA) — returns matches with a similarity score and context (EU reference, type, programme), not a binary yes/no. For KYB, AML and payment-compliance agents.
kind ← A2A Agent Card
name ← A2A Agent Card
summary ← A2A Agent Card
version ← A2A Agent Card
description ← A2A Agent Card
homepageUrl ← A2A Agent Card
publisherUrl ← A2A Agent Card
publisherName ← A2A Agent Card
Derived by Wellknown
Capabilities
Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.
15 h ago · declared · summary → "Paid x402 API tools for AI agents (USDC on Base). Official EU/global registries (GLEIF LEI, VIES VAT, Companies House,
15 h ago · declared · description → "Paid x402 API tools for AI agents (USDC on Base). Official EU/global registries (GLEIF LEI, VIES VAT, Companies House,
15 h ago · declared · publisherName → "x402-endpoints"
15 h ago · declared · publisherUrl → "https://x402-endpoints.onrender.com"
15 h ago · declared · homepageUrl → "https://x402-endpoints.onrender.com"
15 h ago · declared · version → "0.1.0"
15 h ago · declared · protocols → ["a2a"]
CVE Vulnerability Lookup — Security vulnerability lookup (CVE) against the official NVD (NIST) database — by exact CVE id or by keyword/product. Returns description, CVSS severity, CWE weaknesses and references. For devsecops, SBOM and dependency-audit agents.
FDA Product Recalls — Product recall lookup (drugs/devices/food), Class I/II/III, against the official FDA openFDA enforcement reports — by product, firm or reason. Coverage US. For e-commerce, supply-chain, pharmacovigilance and compliance agents.
FDA Drug Labels — Drug interactions, warnings and contraindications lookup from the official FDA openFDA drug labels — by generic or brand name. Returns the key label sections. Coverage US. For healthcare, pharmacy and clinical-decision-support agents. Not medical advice.
OSM Building Footprint — OpenStreetMap building footprints via Overpass — give a coordinate (or bounding box) and get building geometry as GeoJSON, server-computed footprint area (m²), levels and height by coordinate. Worldwide coverage. For real-estate, insurance, solar, geospatial and urban-planning agents.
Climate Risk Score — Derived climate risk score from Open-Meteo CMIP6 projections — a composite heat/drought/extreme-rain risk score (0-100) by coordinate and scenario, comparing a baseline to a future horizon. Worldwide. Derived/heuristic, NOT an official rating; the underlying CMIP6 HighResMIP dataset is a single high-emissions pathway and does not differentiate SSP scenarios. For property due-diligence, ESG, parametric-insurance and siting agents.
Polymarket Resolution — Polymarket resolution status via Gamma API — market resolution, winning outcome and resolution source lookup by slug or condition id (or list recent resolved markets). Distinct from live odds: returns whether a market is closed and which outcome won. Coverage Polymarket markets. For settlement, audit, research and event-forecasting agents.
Google Solar Insights — Rooftop solar potential, panel capacity, sunshine hours and carbon offset by coordinate from the official Google Maps Platform Solar API — returns max panel count, usable roof area, annual sunshine hours and carbon-offset factor for the closest building. Worldwide partial coverage (EU well covered). For solar-sizing, real-estate energy scoring and carbon/ROI agents.
UK Companies House — Search the official UK Companies House register — UK company search, status, type and registered details lookup (KYB) by name or number, or fetch a detailed company profile (registered address, SIC codes, officers with post-ECCTA identity verification status) by company number. Official UK register coverage. For KYB, AML and supplier due-diligence agents.
EPO Patent Search — European patent search and bibliographic lookup by number, title, applicant or inventor against the official European Patent Office (EPO) Open Patent Services — returns publication number, country, kind code, dates, multilingual titles, applicants, inventors, IPC/CPC classifications and INPADOC family id. Coverage EU and worldwide (100+ patent offices). For IP due-diligence, freedom-to-operate, prior-art and R&D agents.
INSEE Sirene Lookup — French company/establishment lookup by SIREN, SIRET or name against the official INSEE Sirene register (France) — returns legal name, administrative status, NAF/APE code, creation date, headcount band and registered address. For KYB, AML and supplier due-diligence agents (France).
IBAN Validation — IBAN format validation (ISO 13616 mod-97) — SEPA/EU IBAN structural validation and country/bank-code extraction. Returns valid/invalid with reason, country code, check digits, bank code and grouped formatting. Format check, NOT account existence. For payment, onboarding and treasury agents.
Légifrance Search — Official Légifrance (French law, via DILA/PISTE) — French legal texts, codes and articles search and lookup by keyword and corpus (codes, laws/decrees, JORF), or consult a text by id. Complements EUR-Lex (EU law) on the national French side. For legal-research, regulatory and compliance agents.
ECB Exchange Rate — Official European Central Bank (ECB) euro reference exchange rates — EUR foreign exchange reference rate lookup by currency (29 currencies), latest or by date. Reference rates (published ~16:00 CET on working days), not live market rates. For pricing, accounting, FX and treasury agents.
Token Safety Check — Token safety check before buying — is this token a honeypot or a rug pull? Bundles honeypot detection, buy/sell tax, holder concentration, LP lock and liquidity (GoPlus, Honeypot.is, DexScreener) into a single 0-100 token security risk score with a clear buy/avoid verdict. One call replaces three lookups. EVM chains.
Perp Funding & OI Radar — Perpetual funding rates, open interest and long/short ratios across Binance, Bybit, OKX and Hyperliquid in one call, plus the computed funding-rate arbitrage spread between venues and a crowding signal. Multi-venue perp derivatives data, resilient: returns whatever venues respond. For trading and funding-arbitrage agents.
Wallet Risk X-Ray — Wallet risk analysis in one call — native + ERC-20 balances, USD portfolio valuation, token count and an OFAC sanctions flag (Blockscout, DexScreener, OFAC list). A full on-chain wallet x-ray with risk flags, where primitives serve one field per call this returns the whole valued portfolio plus risk. EVM chains.
DEX-CEX Arbitrage Spread — DEX vs CEX arbitrage spread — the price difference between DEX and CEX with the fee-adjusted NET spread and execution direction, not two raw prices. Compares the most liquid DEX pair (DexScreener) to CEX spot (Binance/Bybit), subtracts taker+swap fees, and flags any profitable arbitrage opportunity. For arbitrage agents.
Web Search & Extract — Web search and webpage extraction for AI agents — returns clean, LLM-ready markdown (deduplicated, with source URLs), not raw HTML. Give 'query' to search the web or 'url' to scrape and extract a page into markdown ready to drop into a prompt. Powered by Jina Reader.
New DEX Pairs Radar — Newly launched DEX pairs and pools per chain (GeckoTerminal) with an instant per-pair safety check bundled in (GoPlus honeypot/tax/verified + mini score) — a sniping agent filters rugs without a second call. Returns pool, base token, price, liquidity and age. EVM safety; Solana lists pairs only.
x402 Seller Trust Score — Score an x402 seller wallet BEFORE paying it: verdict TRUSTED/CAUTION/AVOID + confidence from its on-chain settlement graph on Base — settlement count, unique paying counterparties, wallet age, wash-trade and sybil signals — with a signed, offline-verifiable receipt. Vet / due-diligence an unknown x402 endpoint or merchant wallet before you pay it: is this seller a scam, a fake-volume wash-trader, or a sybil cluster? Agent counterparty risk, seller reputation and trust score for x402 / agentic …
x402 Payment Firewall — Pre-payment risk firewall for AI agents: validate {recipient, amount, chain} BEFORE sending an x402 payment and get ALLOW/REVIEW/BLOCK in <200ms — OFAC blocklist, sanctioned-mixer check, runaway-overspend vs expected price and anomalous-amount guard. Stop an agent from overpaying or paying a bad address; transaction risk screening and payment guardrail before send. The hosted spending guard / agent budget protection an offline SDK cannot give.
Wallet Sanctions Screen — Crypto wallet sanctions & compliance screening (AML/KYT): screen any EVM/Solana/Bitcoin/Tron/XRP wallet against the official OFAC SDN crypto list (UN/UK declared) with mixer (Tornado Cash) exposure and wallet age, returning PASS/WARN/BLOCK and a cryptographically SIGNED compliance receipt (list-version-pinned, verifiable offline) for audit. Is this address sanctioned, blacklisted or mixer-linked? OFAC wallet check, travel-rule / KYT counterparty screening with an auditable attestation an agent …
Macro Economic Snapshot — Macro economic snapshot API — dated Eurozone economic indicators for trading/research agents: euro-area / Eurozone inflation (HICP / CPI), ECB policy interest rates (deposit, refi), unemployment and EUR FX from the official European Central Bank data portal — each indicator with value, as_of date, next_release cadence and a signed dated snapshot receipt for reproducible backtests. The interest-rate, inflation and currency context an agent needs before trading. Central bank / economic indicators…
Solana Token Safety Pro — Solana SPL token safety, rug check and honeypot / scam detection before trading: is this Solana token a rug pull, honeypot or scam? Verdict SAFE/RISKY/CRITICAL + 0-100 score combining STATIC checks (mint/freeze authority, holder concentration) AND BEHAVIORAL analysis (liquidity adequacy, churn, recent dump, tx velocity) plus a blue-chip false-positive guard so USDC/USDT/SOL are never flagged as rugs. Pre-trade SPL token security / scam-token detection that catches behavioral rugs static checker…
Solana Pre-Trade Bundle — All-in-one Solana pre-trade decision in ONE call: BUY-SAFE/CAUTION/AVOID fusing four scored modules — token security, EXECUTABLE liquidity depth (estimated slippage at $100/$1k/$10k), deployer history/control and holder concentration. Should I buy or avoid this Solana token? Full token due-diligence in one call — replaces 3-4 lookups; built for a trading / sniping agent's risk-review pipeline. Solana trading safety decision and buy/avoid verdict.
Cross-Exchange Signal Fusion — Crypto trading signal (long/short) and market-regime signal in ONE call: LONG/SHORT/NEUTRAL with confidence, fusing the cross-exchange funding rate, crowding (long/short) bias, trend/chop market regime and BTC→altcoin lead-lag from Binance/Bybit/OKX/Hyperliquid — with declared data freshness. Should I go long or short on this coin? A fused directional trading signal where competitors sell the funding rate, regime and the four numbers separately. Derivatives trading signal for any altcoin.
Agent Due Diligence — Vet any company, crypto project, counterparty or domain before engaging: one call composes a risk DOSSIER — synthesis + detected signals + sources + 0-100 risk score + GO/CAUTION/STOP verdict + recommendation + a signed, offline-verifiable receipt. Is this entity a scam, fraud, sanctioned, or safe to deal with? Replaces 3-4 manual web searches plus the synthesis an agent would have to do itself, composed from live public web signals. Counterparty / vendor / project due-diligence for agents.
Agent Analysis Report — Structured analysis report on any URL, company, product or subject in one call: positioning + strengths + risks + opportunities + 0-100 actionable score + STRONG/MODERATE/WEAK rating + recommendation + provenance + a signed receipt. A fixed-schema research report an agent can consume without re-parsing, composed from live public web signals. Competitive / investment / partnership analysis for agents.
Agent Action Preflight — Safety preflight before an agent runs a DESTRUCTIVE, costly or IRREVERSIBLE action (delete, deploy, transfer funds, publish, overwrite): risk assessment + reversibility check + timing + CLEAR/LIMIT/REVIEW/BLOCK verdict + a cryptographically SIGNED ClearancePacket (decision, approved amount, policy version, evidence hash, expiry, rationale) the agent keeps as proof of authorization. Should I run this action, or stop and ask a human? Stops a mistake far costlier than the call price. Agent action …
Agent Output QA — Review and improve an agent's outbound text (email, social post, customer reply) before sending: a multi-criteria scorecard (clarity, spam-safety, tone, length, personalization, CTA, compliance — each 0-100) + poor/fair/good/excellent rating + top suggestions + a ready-to-send IMPROVED REWRITE. Will this message land or get flagged as spam? One call scores and rewrites. Output review / spam check / copy QA for agents.
Content Security Scan — Scan any external content before an agent INGESTS it (SKILL.md, web page, user input, tool output) for prompt-injection, data exfiltration, dangerous code execution, hidden/invisible unicode and instruction overrides: 0-100 risk score + SAFE/WARN/BLOCK verdict + structured findings with matched evidence. Is it safe to feed this content to my agent? A fast, cheap, deterministic, high-volume pre-ingest firewall. Prompt-injection / skill-audit / untrusted-content security check for agents.
Pre-Trade Verdict — One-call GO/CAUTION/NO-GO pre-trade verdict for AI trading agents: fuses token safety (honeypot, rug, tax, holders), counterparty wallet sanctions screening (OFAC/mixer) and cross-exchange market signal into a single decision with a signed, offline-verifiable receipt. Should I buy this token now? Replaces three separate calls (token-safety + wallet-screen + signal) with one fused GO/NO-GO verdict. EVM chains and Solana.
Agent Ledger — Your AI agent's books in one call: structured USDC accounting for any wallet on Base (the x402 settlement asset) — revenue (incoming) vs expenses (outgoing), net, transaction count, top paying counterparties and payees, and a weekly breakdown over a 7d/30d/90d window. Turnkey bookkeeping / expense and revenue report an agent can drop straight into its accounting. The value is the structuring, not raw data access.
Proof Notary — Notarize a document or data hash for AI agents: submit a SHA-256 hash (or short content hashed server-side) and get a timestamped, Ed25519-signed proof-of-existence receipt, verifiable offline with no callback. Prove an artifact, agent output or decision existed at a point in time. Honest scope: this is a SIGNED proof-of-existence receipt, NOT a blockchain-anchored or eIDAS/RFC-3161 legal timestamp. The issuer never sees your content when you send only a hash.
Token Dossier — Full degen token dossier in one call: safety score + honeypot/tax + detailed TOP HOLDERS and concentration + liquidity/FDV/volume/pool-age + contract control (owner, creator, mintable, open-source) + an AI red-flag narrative. Deep due-diligence report on a token before aping — the premium tier above a plain safety check. EVM chains and Solana.
Market Intelligence — AI market intelligence report in one call for research and trading agents: cross-exchange perp derivatives (funding, open interest, long/short), fused directional signals and the euro-area macro snapshot (ECB inflation, policy rates, unemployment, EUR FX) synthesized into a headline, crypto and macro outlook, key signals, risks and opportunities. Multi-source market research report with a crypto + macro/EU lens.
Wallet Forensics — Multi-hop wallet forensics for AI agents: traverse an address's ERC-20 counterparty graph across 1-3 hops and get the flow graph (nodes + edges), ranked counterparties (direction, tokens, activity) and detected patterns — flow concentration, circular flows, linked/clustered wallets and high-degree hubs (exchange/mixer/deployer) — plus a signed receipt. Trace where funds move and who is connected. EVM chains.
On-Chain Events — On-demand, decoded on-chain events for AI agents: query a contract's event logs on Base (eth_getLogs) and get normalized, human-readable events — Transfer, Approval, ERC-1155 TransferSingle/Batch, Uniswap V2/V3 Swap, Sync, Mint, Burn — with raw topics for unknown signatures. Filter by event name, full signature or topic0, and by block range or lookback. Decoded event feed with no RPC setup, block span capped.
x402 Seller Audit — Deep audit of an x402/ACP seller before trusting it: give a seller wallet or domain and get a full report — on-chain settlement reputation (settlements, unique counterparties, wash-trade/sybil, OFAC), the seller's advertised endpoints (from its /.well-known/x402.json), on-chain liveness, web reputation and red flags — fused into a TRUSTED/CAUTION/AVOID verdict with a signed, offline-verifiable receipt. Deeper than a pass/fail badge: the full seller due-diligence dossier for agentic payments.
Capital Clearance Packet — Signed clearance packet an AI agent buys BEFORE a large capital move: one call fuses OFAC/sanctions + mixer screening, multi-hop fund-flow forensics (layering, concentration, hubs) and counterparty settlement trust into a CLEAR/REVIEW/BLOCK verdict with the evaluated amount, a policy-bounded approved amount, a short expiry and an Ed25519 signature verifiable offline. Can I send this capital to THIS wallet? Pre-payment AML/KYT clearance and counterparty due-diligence for agents.
Agent Visibility Audit — Audit how discoverable an x402 agent/seller is across the agent registries (CDP Bazaar, 402index): keyword-RELEVANCE rank per category (not raw settled-volume rank), a metadata-quality score of your advertised endpoints (schema, output.example, tags, llm_usage_prompt), settle activity, a top-3 benchmark, prioritized fixes, and a DELTA vs a signed snapshot you carry back. Why am I not being found and how do I climb? GEO/AEO discovery audit for x402 sellers, Ed25519-signed.