{"uid":"cap_CIeakHnOEqXQoaEeKE7wS","slug":"x402-vector-vector-store-search-c61d53d4","name":"x402-vector Search","description":"A vector database agents pay for by the request. No accounts, no API keys, no subscriptions — just a wallet.","url":"https://api.x402vector.com/v1/search?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"topK":{"type":"integer","default":10,"maximum":50,"minimum":1},"query":{"type":"string","minLength":1}}},"responseSchema":{"type":"json","example":{"results":[{"key":"project:last-brief","score":0.91,"value":{"text":"The user prefers concise implementation plans and exact file references."},"updatedAt":"2026-06-17T12:00:00.000Z","contentHash":"3f786850e387550fdab836ed7e6dc881de23001b"}],"namespace":"0x1111111111111111111111111111111111111111"}},"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":{"p10Cents":"1.0000","medianCents":"1.0000","p90Cents":"1.0000","minCents":"1.0000","maxCents":"1.0000","p95Cents":"1.0000","sampleCount":1,"varies":false,"failureChargeRate":1},"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_UrHlLAFDcF2vIn1KfRyen","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":"Performs semantic vector similarity search over a pay-per-request vector database, returning ranked results with scores and stored values","exampleAgentPrompt":"Search my x402-vector store for the top 5 entries most semantically similar to 'user prefers concise implementation plans' and return their keys, scores, and stored text.","exampleUseCases":null,"resultDescription":"A JSON object containing a 'results' array of up to topK matches, each with a key, similarity score (0-1), stored value object (including text), updatedAt timestamp, and contentHash; plus the wallet-derived namespace identifier.","failureModes":["Payment not included or insufficient — 402 Payment Required with payment instructions","Query string missing or empty — 400 Bad Request","topK out of range (below 1 or above 50) — 400 validation error","Namespace/wallet not recognized or no data stored — empty results array returned","Network timeout or service unavailability — 503 or connection error"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to perform semantic similarity search over previously stored data without managing API keys or subscriptions — ideal for stateless agents that pay per call using a crypto wallet. Prefer this over traditional vector DBs when you want zero-setup retrieval with pay-as-you-go pricing via x402 protocol.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:30:05.614Z","isFirstParty":false,"canonicalSlug":"x402-vector-vector-store-search-c61d53d4"}