{"uid":"cap_x-OIjLSmozHeNA4yECceC","slug":"quietforge-x402-pay-per-call-endpoint-directory-476f1bf4","name":"Quietforge x402 Pay-Per-Call Endpoint Directory","description":"Pay-per-call document conversion, PDF text extraction, headless-browser rendering of a URL or HTML to PNG / JPEG / PDF, a health-probed directory of x402 pay-per-call endpoints, a sudoku generator (solver-verified, technique-graded puzzles as JSON or a print-ready A4/Letter book), a book typesetter (prose manuscript to a KDP-ready interior PDF + editable docx), a crossword generator (verified freeform grid from your clue/answer pairs as JSON or print-ready PDFs), a family tree chart layout engine (descendant / ancestor / hourglass charts from people+families JSON or a GEDCOM file, as verified layout JSON or print-ready poster and tiled PDFs), and a dataset quality audit tool (duplicates, missing values, type consistency, class imbalance, numeric outliers and PII-pattern counts for a CSV/JSON dataset, as JSON or a one-page PDF summary). Payment: x402 (USDC on Base). No signup, no API key.","url":"https://qf-api.quietforge-studio.workers.dev/v1/x402/demand?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"limit":{"type":"integer","description":"Max rows (1-500, default 100)"},"pay_to":{"type":"string","description":"Return only this seller address (0x..., case-insensitive)"},"min_payers":{"type":"integer","description":"Minimum distinct on-chain payers in the window"},"min_payments":{"type":"integer","description":"Minimum confirmed payments in the window"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"asset":"USDC","chain":"eip155:8453","count":1,"totals":{"usd":230.457,"payments":11967,"addresses_scanned":212,"sellers_with_payment":142},"sellers":[{"usd":76.62,"pay_to":"0x058d0cc5cc97e61e8a9f38d6d6365bce525921b2","payments":3831,"services":["AX1 Console"],"usd_per_day":76.62,"distinct_payers":125,"onchain_over_cdp":0.684,"cdp_calls_per_day":5604.3,"listed_prices_usd":[0.02]}],"generated_at":"2026-09-22T13:34:41Z","window_hours":24}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_jYdam_XqOd1xjYvdExtT-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a health-probed, on-chain-verified directory of x402 pay-per-call API endpoints with payment statistics, seller addresses, and service metadata.","exampleAgentPrompt":"Show me the top 50 x402 pay-per-call endpoints active in the last 24 hours that have had at least 5 distinct payers, sorted by payment volume.","exampleUseCases":[{"title":"Find active x402 APIs to integrate","prompt":"List up to 20 x402 pay-per-call services that have received at least 10 confirmed payments, so I can find a reliable one to build on."},{"title":"Monitor a specific seller's activity","prompt":"Check the x402 endpoint directory and show me stats only for the seller at address 0x058d0cc5cc97e61e8a9f38d6d6365bce525921b2 — I want to see their payment count and daily volume."},{"title":"Audit x402 market landscape","prompt":"Pull the full x402 directory with no filters and give me the totals — how many sellers, total USD paid, and total payments confirmed in the last 24 hours."}],"resultDescription":"Returns a JSON object with aggregate totals (total USD, payment count, addresses scanned, sellers with payment) and a list of individual sellers each including their wallet address, payment count, USD earned, distinct payer count, on-chain vs CDP ratio, service names, and listed prices — scoped to a configurable rolling time window.","failureModes":["Payment not included — returns 402 with x402 payment challenge instead of data","limit out of range (must be 1–500) — likely 400 or ignored","pay_to address malformed — may return empty results or 400","min_payers or min_payments too high — returns empty sellers array with valid totals","Service temporarily unavailable — Cloudflare Worker timeout or 503"],"whenToPreferThis":"Use this endpoint when you need to discover, filter, or audit active x402 pay-per-call API sellers and their on-chain payment statistics. It is purpose-built for x402 ecosystem discovery and provides verified on-chain payment data rather than self-reported listings. Prefer it over generic API directories when you specifically need USDC-on-Base payment metadata, seller wallet addresses, or want to filter by real payer/payment activity.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T21:39:00.468Z","isFirstParty":false,"canonicalSlug":"quietforge-x402-pay-per-call-endpoint-directory-476f1bf4"}