quartermaster.surewhynot.app publishes 22 machine-payable endpoints over the x402 protocol, priced from $0.001 to $0.05 per call. Each was probed directly; the response code below is what it returned.
| Endpoint | Method | Price | Probe |
|---|---|---|---|
| /v1/balance | GET | $0.001 | 402 |
| /v1/base/wallet-report | GET | $0.04 | 402 |
| /v1/classify | GET | $0.002 | 402 |
| /v1/deep-read | GET | $0.05 | 402 |
| /v1/holiday | GET | $0.001 | 402 |
| /v1/http-check | GET | $0.001 | 402 |
| /v1/meta | GET | $0.002 | 402 |
| /v1/payment-proof | GET | $0.003 | 402 |
| /v1/pick | GET | $0.001 | 402 |
| /v1/random | GET | $0.001 | 402 |
| /v1/receipt | GET | $0.002 | 402 |
| /v1/route | GET | $0.03 | 402 |
| /v1/settlement-assurance | GET | $0.03 | 402 |
| /v1/summarize | GET | $0.01 | 402 |
| /v1/tx | GET | $0.002 | 402 |
| /v1/tx-decode | GET | $0.003 | 402 |
| /v1/unshorten | GET | $0.002 | 402 |
| /v1/x402-audit | GET | $0.01 | 402 |
| /v1/x402/audit-pro | GET | $0.05 | 402 |
| /v1/x402/inspect | GET | $0.002 | 402 |
| /v1/x402/scout | GET | $0.05 | 402 |
| /v1/x402/simulate | GET | $0.003 | 402 |
Check ETH and USDC (or any ERC-20) balance of an address on Base — pre-flight funding checks for payments and settlement.
One-call Base wallet profile: USDC balance, recent USDC transfers in/out, EOA-vs-contract type, and x402 Bazaar merchant listings if the address is a payTo. Bundles four on-chain lookups into a single…
Zero-shot text classification into caller-supplied labels; the result is validated back into your label set so agents can route on it deterministically.
AI Deep Read: fetches up to five pages, reads them, and synthesizes a sourced answer to your question via Workers AI. Input is capped for predictable cost. Pass urls=<comma-separated> and question=<yo…
Is a date a public holiday in a country (2-letter ISO code)? Returns the holiday name, its types, and the next upcoming holiday that year.
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.
Get structured metadata for a public webpage: title, description, canonical URL, Open Graph fields, favicon, and language.
Verify an x402 settlement on Base OR Solana: pass a 0x transaction hash or a base58 signature, confirm it succeeded, decode its USDC transfers (event logs on Base, net token-balance deltas on Solana),…
Pick one or several options at random from a caller-supplied list (CSPRNG), optionally without replacement — a decision-maker for agents.
Cryptographically-secure random integers in a chosen range (CSPRNG, rejection-sampled to avoid modulo bias) — real entropy an LLM cannot produce itself.
Formatted settlement receipt for any Base transaction hash or Solana signature: timestamp, status, decoded token transfers, explorer link — records for x402 payments on either rail.
The x402 Router: send a plain-English goal in q (e.g. 'audit https://api.example.com/paid', 'price of eth', 'is 0x… a contract', 'verify settlement 0x…') and Quartermaster picks the right tool from it…
Settlement assurance for a completed x402 payment on Base or Solana: confirm the transaction succeeded (0x hash or base58 signature), match the USDC transfer to an expected wallet and amount, format a…
AI summary of any public webpage: fetches the URL, extracts readable content, and returns a short, medium, or long factual summary.
Check the status of a Base transaction: success/reverted/pending, confirmations, gas used, and explorer link — settlement verification for agents and payment flows.
Decode a Base transaction's calldata into a human-readable function call and arguments — ERC-20 transfer/approve and the EIP-3009 transferWithAuthorization used by x402 settlements. Recognizes x402 se…
Expand a shortened or redirecting URL: follows the redirect chain server-side and returns every hop plus the final destination, re-validating each hop against SSRF.
Full x402 endpoint audit: verifies the 402 challenge, payment fields, Bazaar discovery metadata, and the origin's discovery surfaces (llms.txt, openapi.json, .well-known/x402, discovery/resources), re…
Deep x402 audit: the full endpoint audit plus a live probe for rail coverage (Base/Solana), multi-rail detection, HTTP status, and latency — a premium trust report on any x402 endpoint.
Inspect and lint any x402 paid endpoint: decodes the 402 payment challenge, names the network and asset, and flags misconfigurations including missing Bazaar discovery metadata.
Bazaar Scout: searches the Coinbase Bazaar for a capability, live-probes the top candidates (still returning HTTP 402? how fast?), and returns a ranked shortlist with a best-value pick — a vetted resu…
Pre-flight an x402 payment: decode the endpoint's challenge, report the cost on every rail (Base and Solana) and the cheapest, and — with a payer address — verify the wallet can afford the call on Bas…