Everything here was measured by our prober or read from a registry. Nothing is self-reported.
30-day availabilityno checks in window
30 days agotoday
Endpoints
https://quartermaster.surewhynot.app/mcpmcp streamable http · checked on a schedule
Registry facts
Not distributed through a package registry we index.
when
check
result
http
latency
detail
2 h ago
mcp initialize
ok
200
17 ms
server quartermaster 1.6.0 · protocol 2025-06-18 · 49 tools
Tools observed via MCP handshake
x402_router — START HERE. One tool for anything x402, Base chain, or web/AI: describe your goal in plain English (q) and Quartermaster picks and runs the right underlying too
web_extract — [Web] Extract clean readable text and metadata from a public webpage as structured JSON. Costs $0.005 (USDC via x402).
page_meta — [Web] Get page metadata: title, description, Open Graph, canonical URL, favicon, language. Costs $0.002.
qr_generate — [Web] Generate a QR code as SVG (or terminal text with format=text). Costs $0.002.
dns_lookup — [Web] Resolve DNS records over DNS-over-HTTPS (A, AAAA, CNAME, MX, NS, TXT, and more). Costs $0.001.
http_error_explain — [Web] Explain an HTTP status code: meaning, common causes, fixes, retry guidance. Costs $0.001.
tx_status — [Crypto/Base] Check a Base transaction: success/reverted/pending, confirmations, gas, explorer link. Costs $0.002. Choose this for a quick raw status; use payme
wallet_balance — [Crypto/Base] ETH and USDC (or any ERC-20) balance for an address on Base. Costs $0.001.
gas_prices — [Crypto/Base] Current Base gas prices with a simple-transfer cost estimate. Costs $0.001.
summarize_url — [AI] AI summary of a public webpage (fetch + extract + summarize). length: short|medium|long. Costs $0.01.
translate_text — [AI] AI translation into any target language; source auto-detected. Costs $0.005.
tldr_text — [AI] Summarize raw text you pass in directly (not a URL). length: short|medium|long. Costs $0.005. Use summarize_url when you have a URL instead.
classify_text — [AI] Zero-shot classification of text into caller-supplied labels; the result is validated back into your label set so you can route on it. Costs $0.002.
unshorten_url — [Web] Expand a shortened/redirecting URL: follow the redirect chain and return every hop plus the final destination. Each hop is SSRF-validated. Costs $0.002. S
Declared by sources
What the publisher says
Attributed to the source that supplied each field. Treated as claims, not facts.
No long description beyond the summary.
kind ← Official MCP Registry
name ← Official MCP Registry
summary ← Official MCP Registry
version ← Official MCP Registry
description ← Official MCP Registry
homepageUrl ← Official MCP Registry
publisherName ← Official MCP Registry
Derived by Wellknown
Capabilities
Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.
No capability could be derived with confidence. Owners can declare capabilities after claiming.
Provenance
Where this record came from
Every source is kept verbatim. Field changes are logged as events.
Official MCP Registryapp.surewhynot.quartermaster/quartermaster
5 h ago · declared · summary → "x402 toolkit for AI agents: paid web, AI, and Base chain tools per call in USDC. Free tools too."
5 h ago · declared · description → "x402 toolkit for AI agents: paid web, AI, and Base chain tools per call in USDC. Free tools too."
5 h ago · declared · publisherName → "app.surewhynot.quartermaster"
5 h ago · declared · homepageUrl → "https://quartermaster.surewhynot.app"
5 h ago · declared · version → "1.6.0"
5 h ago · declared · protocols → ["mcp"]
regex_test — [Dev] Test a regular expression against text; returns every match with numbered and named capture groups. Deterministic. Costs $0.001.
random_numbers — [Dev] Cryptographically-secure random integers in a range (CSPRNG, unbiased) — real entropy an LLM cannot produce itself. Costs $0.001.
random_pick — [Dev] Pick one or several options at random from a caller-supplied list (CSPRNG), optionally without replacement. Costs $0.001.
http_check — [Web] Liveness/latency pre-flight for a URL: is it up, HTTP status and class, response latency in ms, whether it redirects and where, content-type and server. C
public_holiday — [Dev] Is a date a public holiday in a country (2-letter ISO code)? Returns the holiday name, its types, and the next upcoming holiday. Costs $0.001. Useful for
x402_inspect — [x402] Inspect and lint any x402 paid endpoint: decode the 402 challenge, identify network/asset, flag misconfigurations and Bazaar-readiness. Costs $0.002. Cho
x402_simulate — [x402] Pre-flight a payment BEFORE you spend: decode an endpoint's 402 challenge, report the cost on every rail (Base and Solana) and the cheapest, and — with a
tx_decode — [Crypto/Base] Decode a Base transaction's calldata into the function it called and its arguments — ERC-20 transfer/approve and the EIP-3009 transferWithAuthoriz
embed_text — [AI] Text embeddings (1024-dim vector) for semantic search and RAG. Costs $0.002.
extract_structured — Structured extraction: JSON Schema plus a URL or raw text in, matching JSON out. Costs $0.005.
moderate_text — [AI] Content-safety classification (Llama Guard): safe flag plus category codes. Costs $0.002.
describe_image — [AI] AI vision: describe a public image URL, including visible text. Costs $0.005.
token_price — [Crypto/Base] USD price for major tokens by symbol or any Base ERC-20 by address. Costs $0.001.
payment_receipt — [x402] Formatted settlement receipt for a Base transaction (0x hash) or Solana settlement (base58 signature): timestamp, decoded transfers, explorer link. Costs
resolve_basename — Resolve a Basename (.base.eth) to a wallet address on Base. Costs $0.001.
x402_audit — [x402] WORKFLOW: full scored audit of an x402 SELLER endpoint (a URL) in one call - verifies the 402 challenge, payment fields, Bazaar discovery metadata, and t
payment_proof — [x402] Verify an x402 settlement on Base OR Solana from a tx id (0x hash or base58 signature): confirm it succeeded, decode its USDC transfers, optionally asser
settlement_assurance — [x402] FLAGSHIP: from a tx id on Base (0x hash) or Solana (base58 signature), prove a completed x402 payment is real and sound - onchain success, USDC transfer
x402_discover — [x402] Search the Coinbase x402 Bazaar for paid resources by natural-language query. Costs $0.001.
x402_merchant — [x402] List all x402 Bazaar resources under a merchant payTo wallet. Costs $0.001.
usdc_normalize — Convert USDC amounts between atomic units and human decimals. Costs $0.001.
base_token_info — ERC-20 name, symbol, decimals, total supply for a token on Base. Costs $0.001.
base_allowance — Check an ERC-20 spending allowance on Base; flags unlimited approvals. Costs $0.001.
base_contract — Determine whether a Base address is a contract or an EOA. Costs $0.001.
base_usdc_transfers — Recent USDC transfers (in and out) for an address on Base. Costs $0.002.
jwt_decode — [Dev] Decode a JWT header and payload (signature NOT verified). Costs $0.001.
base64 — [Dev] Base64 encode or decode a string. Costs $0.001.
text_stats — [Dev] Word/sentence counts, reading time, and readability score for text. Costs $0.001.
text_diff — [Dev] Compact line-level diff between two texts. Costs $0.001.
x402_test_vector — [x402] Free: example x402 payment-requirement objects with field explanations.
current_time — FREE (no wallet needed): current time as ISO, unix, UTC, and optional local time for an IANA timezone.
generate_uuid — FREE (no wallet needed): generate UUID v4 values, up to 100 at once.
hash_string — FREE (no wallet needed): SHA-1/256/384/512 hex digest of a string.
http_errors_list — FREE (no wallet needed): index of documented HTTP status codes (use http_error_explain for a paid detailed explanation).
quartermaster_info — Free: catalog, prices, and payment instructions for this server.