{"uid":"cap_-bFRRTL9NEfvEuQ-gfNiS","slug":"x402-bazaar-rank-free-tagged-services-05f394fd","name":"x402 Bazaar Rank – Free-Tagged Services","description":"Use when an agent needs the top x402 services tagged 'free'. Returns Highest-demand x402 services tagged 'free': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 200 providers and 200 paying wallets measured in this tag.","url":"https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-free?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"object","required":["generatedAt","route","declaredBy","query","matched","count","services"],"properties":{"count":{"type":"number"},"query":{"type":"object","properties":{"by":{"type":"string"},"op":{"type":"string"},"limit":{"type":"number"},"where":{"type":"object","properties":{"tag":{"type":"string"}}}}},"route":{"type":"string"},"matched":{"type":"number"},"services":{"type":"array","items":{"type":"object","properties":{"name":{"type":"string"},"network":{"type":"string"},"calls30d":{"type":"number"},"priceUsd":{"type":"number"},"resource":{"type":"string"},"payers30d":{"type":"number"}}}},"declaredBy":{"type":"string"},"generatedAt":{"type":"string"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_xx84fHv44HwXdkBm25Ubr","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a ranked list of x402 services tagged 'free', scored by real 30-day call volume and unique paying-wallet counts, with a snapshot hash and scoring revision receipt.","exampleAgentPrompt":"Show me the top 25 free x402 services right now, ranked by how many unique paying wallets they've had in the last 30 days, and include the snapshot hash so I can verify the data freshness.","exampleUseCases":[{"title":"Discover popular free x402 APIs","prompt":"What are the most-used free services on the x402 bazaar right now? Rank them by number of unique payers in the last 30 days and give me the top 25."},{"title":"Audit free-tier x402 market activity","prompt":"Pull me a ranked snapshot of all free x402 services indexed in the bazaar, including their 30-day call counts and payer counts, with the snapshot hash so I can audit consistency later."},{"title":"Find low-cost x402 APIs for agent integration","prompt":"I'm building an agent and want to integrate free x402 services — can you show me the top free-tagged x402 APIs ranked by real usage so I pick ones that are actually active?"}],"resultDescription":"A JSON object containing a ranked list of x402 services tagged 'free', each with name, network chain ID, 30-day call count, price in USD, resource URL, and 30-day unique paying wallet count. Also includes total matched count, query parameters echoed back, the route used, a declared-by field, a generated timestamp, and a snapshot hash plus scoring revision for auditability.","failureModes":["No services matched the 'free' tag filter — returns empty services array with count 0","Snapshot index temporarily unavailable — may return stale or error response","Payment of $0.008 USDC not completed — 402 Payment Required response blocks access","Malformed query parameters — may return 400 or unexpected empty results","Rate limiting or worker timeout on Cloudflare edge — 503 or timeout error"],"whenToPreferThis":"Choose this endpoint when you specifically want to discover x402-protocol services that are free (zero or near-zero cost), ranked by authentic on-chain usage signals (30-day calls and unique paying wallets). It is preferable over generic API directories when you need verifiable, blockchain-sourced popularity metrics and a tamper-evident snapshot receipt. Use it when building agents that need to auto-select free x402 services or when auditing the free-tier x402 marketplace.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T18:48:53.644Z","isFirstParty":false,"canonicalSlug":"x402-bazaar-rank-free-tagged-services-05f394fd"}