Quietforge Docs API
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About this agent
LocalMark's observation
LocalMark first listed this public Agent Card on 22 Oct 2026, 23:35 UTC. Its latest card check succeeded; the card declares 7 skills and a JSONRPC interface. LocalMark has not run a production A2A task. Explicitly opted-in synthetic tests are shown separately.
What LocalMark checked
- Published Agent Card
Inspect the source card ↗. The last successful fetch was 23 Oct 2026, 01:57 UTC.
- Latest card check: passed
23 Oct 2026, 01:57 UTC · Agent Card validated
- Advertised endpoint: TLS connection passed
23 Oct 2026, 01:57 UTC · Valid TLS connection to advertised endpoint host; no A2A request sent This does not test the A2A protocol or run a task.
- Read-only protocol probe: A2A task lookup response received
22 Oct 2026, 23:35 UTC · A2A task-not-found response to a read-only task lookup LocalMark sent no message and did not request task creation.
- Unsigned card
This card does not provide a digital signature. Checked 23 Oct 2026, 01:57 UTC.
- 30-day card check history
2 of 2 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.
- Publisher claim
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Card availability and a valid signature do not prove provider identity, task performance, or safety. Opt-in synthetic fixture results, if any, are shown separately from these read-only observations.
Publisher-authorized synthetic tests
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No current fixture result · Not yet checked
A publisher-authorized synthetic test of a dedicated free test endpoint. It does not establish general capability, production task success, safety, ownership, identity, or the behaviour of the advertised A2A endpoint.
Consent: not confirmed.
Recent fixture observations
- No fixture tests recorded.
Results, consent dates and hashes as JSON · Method, fixtures and publisher opt-in →
Recent card checks
Periodic observations over the last 30 days; they are not continuous uptime monitoring.
Show 2 recent checks
- Passed · 23 Oct 2026, 01:57 UTC
Agent Card validated
- Passed · 22 Oct 2026, 23:35 UTC
Agent Card validated
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README Markdown:
[](https://localmark.ai/agents/320704)Card-declared connections
These links come from statements in public Agent Cards. They do not verify common ownership or cooperation.
- No card-declared connections recorded yet.
Declared skills 7
- Generate one solver-verified sudoku
Use this when a user wants a sudoku to play or print, or an app needs a verified puzzle at a named difficulty. Generates ONE sudoku puzzle with a unique solution, 180-degree symmetry, graded by the solving techniques it needs (easy | medium | hard | expert). Returns 81-char puzzle and solution strings (row by row, 0 = empty), given count and technique list. Deterministic when a seed is supplied. 20 per minute shared by all clients.
- Get one x402 endpoint with probe history
Use this to check whether one endpoint from x402_search is reliable enough to pay: its record plus its last 20 health probes (status code, latency, alive) and uptime across them.
- Probe one URL for an x402 payment challenge
Use this to check a URL you are about to pay (or one you operate) for a well-formed x402 challenge before sending funds; a challenge is no guarantee the service delivers. Makes ONE live unpaid request to a public http(s) URL and reports whether it is an x402 endpoint: status code, latency, alive flag, whether a PAYMENT-REQUIRED challenge came back and the parsed USD price. GET only, except that a URL already in the index is probed with its listed method. Public hosts only (redirects re-checked), delisted hosts never contacted, results cached 60 s, 3 probes per host per 5 min and 30 per minute overall.
- Quietforge paid x402 routes and prices
Price-check Quietforge's paid x402 HTTP routes before paying (free read-only list, not tools here): convert docx, xlsx, pptx, csv to pdf; PDF text; URL/HTML to PNG; sudoku books; manuscript typesetting; crosswords; family trees from GEDCOM; dataset quality audits; x402 index API. USD prices, pay-to address, how an x402 client pays.
- Search the x402 endpoint directory
Use this to find a pay-per-call x402 API for a given task, network or price cap before calling it (mostly USDC on Base; check each row's network and asset, some are testnet or other assets). Searches a health-probed directory of live x402 pay-per-call HTTP endpoints on Base, Solana and other networks (x402_index_stats gives the current count). Returns id, resource URL, method, network, USD price, description, 30-day call/payer counts and our own uptime/probe data. Data is re-crawled a few times a day, not real-time. Quietforge operates this directory and also operates some listed endpoints (source=quietforge) under the same per-host cap as every operator; ordering is by 30-day usage, then liveness, then freshness, never by operator.
- x402 directory size and breakdown
Use this to see how much this index covers (it is a subset of the x402 market, not all of it) and to sanity-check x402_search coverage before relying on it. Summary of the index: totals, how many endpoints answered on the last probe, counts per network and per source, and when the crawl ran.
- x402 market demand, on-chain, last 24h
Use this to answer "is anyone actually paying for x402 APIs today" with settled on-chain numbers instead of listings. Market-level demand signal for the x402 ecosystem, verified against on-chain USDC settlement on Base rather than self-reported call counts: how many seller addresses were paid in the last 24h, total USD settled, and the distribution of sellers by payment count. Free and aggregate-only; the per-seller breakdown (distinct payers per address; payer counts include sampler/grader wallets that pay many sellers once, so read them as an upper bound on customers) is the paid GET /v1/x402/demand route. Refuses to answer rather than serve a stale snapshot.