{"uid":"cap_l5qjqLJBzFpjR-JBn0Aq2","slug":"x402-bazaar-rank-email-services-50c80d1d","name":"x402 Bazaar Rank – Email Services","description":"An open index of the machine-to-machine (agent) economy. x402 routes: ranked discovery over the live x402 service market, every indexed service scored by real 30-day calls and paying-wallet bounds, with a receipt naming the snapshot hash and scoring revision. /economy routes, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry): each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 and per-service MPP listings are not covered.","url":"https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-email?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"count":25,"query":{"by":"payers","op":"top","limit":25,"where":{"tag":"email"}},"route":"/in-email","matched":359,"services":[{"name":"forecast api","network":"eip155:8453","calls30d":310,"priceUsd":0.01,"resource":"https://api.example.com/forecast","payers30d":42}],"declaredBy":"agent","generatedAt":"2026-09-17T12:00:00.000Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.032","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":"$0.032/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.032","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.032","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_B1Dt-uv7Rr56f5eUTYMHL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.032","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 email-tagged services sorted by 30-day unique paying wallets and call volume, with a signed snapshot receipt.","exampleAgentPrompt":"Show me the top 25 email services on the x402 bazaar ranked by unique paying wallets over the last 30 days, and include the snapshot hash so I can verify the data freshness.","exampleUseCases":[{"title":"Scout email APIs for agent pipeline","prompt":"I'm building an agent that needs to send transactional emails — show me the top email services on the x402 market ranked by how many unique wallets are actually paying for them, so I know which ones are battle-tested."},{"title":"Competitive analysis of email market","prompt":"Pull the x402 bazaar rankings for email-tagged services and tell me how many total services are in that category, what the top ones charge, and how their 30-day call volumes compare."},{"title":"Validate email service popularity before integrating","prompt":"Before I integrate an email API, can you check the x402 bazaar and show me which email services have had the most paying wallets in the last 30 days, along with their prices and the snapshot hash for audit purposes?"}],"resultDescription":"A JSON object containing a ranked list of up to 25 email-tagged x402 services, each with name, network, 30-day call count, 30-day unique payer count, price in USD, and resource URL. Also includes total matched count, query metadata, snapshot generation timestamp, and a snapshot hash receipt for verifying data provenance and scoring revision.","failureModes":["No email-tagged services indexed yet — returns empty services array with count 0","Snapshot stale or hash mismatch — receipt may reflect an older scoring revision","Rate limiting or payment failure — 402 response if USDC payment not processed","Malformed response if the upstream bazaar index is being rebuilt","Network timeout on Cloudflare Worker cold start"],"whenToPreferThis":"Choose this endpoint when you specifically need to discover and rank x402-native email services by real on-chain usage signals (paying wallets and call volume) rather than self-reported metrics. It is the right choice when you want a verifiable, receipted snapshot of the email segment of the x402 market, not a general web search for email APIs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T06:52:43.443Z","isFirstParty":false,"canonicalSlug":"x402-bazaar-rank-email-services-50c80d1d"}