{"uid":"cap_yDVN6BiXt9UtCIIGSMgVe","slug":"p0-agent-economy-index-concentration-76788374","name":"P0 Agent Economy Index – /concentration","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/concentration?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"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"tag":{"type":"string","description":"optional: one tag (lowercase; a space as %20 or +), e.g. ai or market data; omitted = top tags by summed payers"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["v","as_of","generated_at","labels","tag","categories","categories_total","stale","snapshot_age_s","source","source_url","note"],"properties":{"v":{"type":"number"},"tag":{},"note":{"type":"string"},"as_of":{"type":"string"},"stale":{"type":"boolean"},"labels":{"type":"object","properties":{"calls_30d":{"type":"string"},"invocations":{},"paid_outcome":{"type":"string"}}},"source":{"type":"string"},"categories":{"type":"array","items":{"type":"object","properties":{"hhi":{"type":"number"},"tag":{"type":"string"},"top":{"type":"array","items":{"type":"object","properties":{"resource":{"type":"string"},"payers30d":{"type":"number"}}}},"sellers":{"type":"number"},"services":{"type":"number"},"top1_share":{"type":"number"},"top3_share":{"type":"number"},"top1_seller_share":{"type":"number"},"zero_payer_services":{"type":"number"},"payers_sum_upper_bound":{"type":"number"}}}},"source_url":{"type":"string"},"generated_at":{"type":"string"},"snapshot_age_s":{"type":"number"},"categories_total":{"type":"number"}}}}}}},"responseSchema":{"type":"json","example":{"v":1,"tag":null,"note":"payers_sum is an upper bound of unique payers in a tag. Format sample: totals, coverage, cohorts and per-chain rows are our real computation of 2026-10-05; per-tag, per-service and per-pair list entries are illustrative placeholders.","as_of":"2026-10-04T18:24:44+00:00","stale":false,"labels":{"calls_30d":"calls_30d are paid outcomes: settlements recorded by the CDP facilitator. Unpaid invocations (402 challenges, probes, failed verifies) are not observable in public data, so invocations is null.","invocations":null,"paid_outcome":"a facilitator-recorded settlement (catalog calls_30d) or an on-chain transfer to a listed payTo address (scans, not verified as x402 settlements)"},"source":"P0 demand metrics: Coinbase CDP x402 Bazaar catalog (public) + P0 on-chain scans of USDC transfers to listed x402 payTo addresses","categories":[{"hhi":0.2311,"tag":"example-tag","top":[{"resource":"https://api.example-seller.dev/v1/search","payers30d":130}],"sellers":4,"services":12,"top1_share":0.4194,"top3_share":0.7742,"top1_seller_share":0.5161,"zero_payer_services":3,"payers_sum_upper_bound":310}],"source_url":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","generated_at":"2026-10-05T00:30:00Z","snapshot_age_s":600,"categories_total":5001}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_u7RF-6jYG7HuexoCs48tv","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns market concentration metrics (HHI, top-seller shares, payer bounds) for x402 services grouped by tag, sourced from live 30-day payment data","exampleAgentPrompt":"Can you pull the P0 Agent Economy concentration data for the 'ai' tag and tell me how monopolized that corner of the x402 market is — what's the HHI, the top seller share, and which service leads by paying wallets?","exampleUseCases":[{"title":"Competitive landscape check for x402 AI services","prompt":"I'm evaluating the x402 ecosystem for AI-tagged services — can you get me the concentration metrics showing HHI, top-3 share, and how many sellers are active so I understand how competitive or monopolized that segment is?"},{"title":"Finding dominant x402 services in a niche","prompt":"What are the top x402 services in the 'market data' tag ranked by paying wallets over the last 30 days, and what share of payers does the leading service capture?"},{"title":"Broad x402 market overview by category","prompt":"Give me a breakdown of concentration across all the top x402 tags — I want to see which categories have the most services and sellers and which ones are dominated by just one or two players."}],"resultDescription":"A JSON object with per-tag concentration metrics including HHI, top-1 and top-3 payer share, top-1 seller share, total services and sellers, zero-payer service count, an upper-bound sum of unique payers, and a ranked list of top resources with their 30-day payer counts. Includes snapshot timestamp, staleness flag, data source attribution, and a note clarifying that payer sums are upper bounds.","failureModes":["Stale snapshot: stale:true returned if the underlying index hasn't refreshed within expected window, snapshot_age_s will be large","Unknown tag: returns empty categories array if the provided tag has no indexed services","Invalid tag format: malformed or unsupported tag strings may return empty results or a 400-level error","Service unavailable: Cloudflare Worker cold start or upstream Bazaar catalog unavailability may cause timeout or 5xx"],"whenToPreferThis":"Use this endpoint when you need market structure analytics for the x402 service economy — specifically concentration metrics like HHI and seller share — rather than just a ranked list of services. Prefer it over the ranked-listing endpoints when the user wants to understand competitive dynamics, monopoly risk, or category diversity rather than finding the best individual service to call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T04:07:30.589Z","isFirstParty":false,"canonicalSlug":"p0-agent-economy-index-concentration-76788374"}