{"uid":"cap_kBqy3SkHGnVUjP3hMPiuj","slug":"agent-paywire-search-14d0860e","name":"Agent Paywire Search","description":"Search the Agent Paywire library of Lightning, L402, x402, and stablecoin sources, plus related articles. Optional words (q), category, status, since date, and limit. One request is 0.01 USDC. The files on https://agentpaywire.com stay free.","url":"https://api.agentpaywire.com/v1/search?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"],"type":"string"},"queryParams":{"type":"object","properties":{"q":{"type":"string","description":"Words to match in the library and articles. Optional. An unpaid 402 returns at most two results with title, url, and date."},"limit":{"type":"integer","description":"Maximum results. Optional. Default 50, maximum 100."},"since":{"type":"string","description":"Inclusive lower bound, YYYY-MM-DD, on verified_at. Optional."},"status":{"type":"string","description":"Exact library status: proposal, individual_draft, working_group_draft, standard, spec_released, product_docs, news, research, or unknown. Optional. When set, articles are left out."},"category":{"type":"string","description":"Library category id. Optional. When set, articles are left out."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["q","count","results"],"properties":{"q":{"type":"string"},"count":{"type":"integer"},"results":{"type":"array"}}}}}}},"responseSchema":{"type":"json","example":{"q":"l402","count":1,"results":[{"id":"lightning-labs-l402-for-agents","url":"https://lightning.engineering/posts/2026-03-11-L402-for-agents/","kind":"library","title":"The Future Is Now: Why L402 Is the Internet-Native Payments Protocol for Agents","verified_at":"2026-10-20","date_published":"2026-03-11"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_44NRUooJvFZDW9KOBV--X","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Search a curated library of articles and resources about how AI agents pay and get paid using stablecoins and machine-to-machine payment protocols","exampleAgentPrompt":"Search Agent Paywire for articles about the x402 payment protocol and return up to 10 results published since 2025-01-01.","exampleUseCases":[{"title":"Researching agent payment protocols","prompt":"Search Agent Paywire for everything they have on L402 and lightning network payments for AI agents — give me up to 20 results."},{"title":"Finding stablecoin infrastructure guides","prompt":"Can you look up Agent Paywire articles about USDC and stablecoin payments for autonomous agents? I want the most recent ones, so filter to anything verified after 2025-06-01."},{"title":"Exploring machine-to-machine billing options","prompt":"Search Agent Paywire for resources about machine-to-machine payment protocols — I'm trying to understand the technical options available for agents paying other agents, limit to 15 results."}],"resultDescription":"Returns a JSON object containing the search query echoed back, a count of matching results, and an array of matching articles or library entries, each with an id, URL, kind (article or library resource), title, verified_at date, and date_published.","failureModes":["No results returned for highly specific or obscure queries","Invalid date format for 'since' parameter returns an error","Limit exceeding 100 results is capped or rejected","Unknown category ID returns empty results or error","Network or payment failure if the x402 USDC payment is not processed"],"whenToPreferThis":"Use this endpoint when you need curated, editorially verified content specifically about AI agent payment protocols, stablecoins, and machine-to-machine payment infrastructure. It is the right choice over general web search when you want high-quality, domain-focused resources vetted by Agent Paywire editors, particularly around x402, L402, USDC, and related agent payment topics.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T12:43:31.273Z","isFirstParty":false,"canonicalSlug":"agent-paywire-search-14d0860e"}