P0 Agent Economy Index Concentration API

openapi: 3.2.0
info:
  title: P0 Agent Economy Index Concentration API
  version: 0.2.0
  x-logo:
    url: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/icon.png
  contact:
    name: dev Mike (P0)
    email: chebotarev.mike@gmail.com
    url: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/join
  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.'
  x-guidance: 'Market data over 25897 listed x402 services, 30-day window. For protocols beyond x402 (Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry)) use /economy, /economy/protocols and /economy/search. For x402, start with GET /search?q=<capability> for ranked services, or /top for the highest-demand ones with callsPerPayer (near 1 means each payer bought once, high means repeat use). /price benchmarks what comparable services charge, /networks breaks demand down by chain, /tags is the capability vocabulary, /count is the market totals, /service looks one service up by URL, /report and /alpha are the category report and the underserved niches, /dataset is the full export. Premium: /dataset/pro ($25) is the enriched full export (demand rank overall and within the top tag, per-seller and per-category aggregates) and /report/weekly ($5) the market report; /dataset/teaser is a free 5% sample in the /dataset/pro row schema. EVERY paid route answers a call with no parameters at all with real data rather than an error, so a blind purchase is never wasted. If you transferred the price to payTo in USDC, USDT or DAI on Base without a payment header, just call the route again within 30 minutes and it serves the data (one transfer, one response); other transfers are never matched automatically: claim them with ?tx=<hash> (on /pay/check use ?payment_tx=<hash> instead, since its tx is the transaction being checked) on Base, Ethereum, Arbitrum or Polygon (USDC, USDT, DAI, WETH, cbBTC, WBTC, USDT0 where that chain has the token, or native ETH/POL), ?btc=<txid> (BTC), ?sol=<signature> (SOL, USDC, USDT), ?tron=<txid> (TRX, USDT TRC-20) or ?stx=<txid> (STX, sBTC); a direct transfer on any other chain, or of a token not named here, cannot be claimed. The two premium routes are the exception and serve a plain transfer only when it is claimed with ?tx=<hash>. /sample, /health and /dataset/teaser are free. Payment is x402 v2, scheme exact, networks eip155:8453, eip155:42161, eip155:137 (USDC); stacks:1 (sBTC); eip155:43114, eip155:10, eip155:42220 (USDC via UltravioletaDAO); eip155:42161 (USDT0), eip155:1 (USDC) via UltravioletaDAO, or MPP (method evm, intent charge, USDC on EVM networks, same prices); a plain transfer on Base, Ethereum, Arbitrum or Polygon also works via ?tx=<hash>.'
servers:
- url: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev
tags:
- name: Concentration
paths:
  /concentration:
    get:
      summary: 'Use when you need demand concentration in the x402 Bazaar: for each tag, the…'
      operationId: concentration
      parameters:
      - name: tag
        in: query
        required: false
        description: 'optional: one tag (lowercase; a space as %20 or +), e.g. ai or market data; omitted = top tags by summed payers'
        schema:
          type: string
        example: ai
      security:
      - x402: []
      - mpp: []
      x-payment-info:
        protocols:
        - x402: {}
        - mpp:
            method: evm
            intent: charge
            currency: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'
        network: eip155:8453
        networks: eip155:8453, eip155:42161, eip155:137 (USDC); stacks:1 (sBTC); eip155:43114, eip155:10, eip155:42220 (USDC via UltravioletaDAO); eip155:42161 (USDT0), eip155:1 (USDC) via UltravioletaDAO
        asset: USDC
        price:
          mode: fixed
          currency: USD
          amount: '0.002'
        alternatives:
        - assets: USDC, USDT, DAI, ETH, WETH, cbBTC, WBTC
          networks: Base, Ethereum, Polygon, Arbitrum
          address: '0xECa891e34b3E5873181Fb779672564E198C55354'
        - assets: BTC
          networks: Bitcoin
          address: bc1qqwgyyqv6raq2jnghals2n2aujgwd4e9p64g4hr
        - assets: SOL, USDC, USDT
          networks: Solana
          address: FTbVqWwsfJJ5AuAwNDuCuzdpwCEJahu14HAUgAYcJHuq
        - assets: STX, sBTC
          networks: Stacks
          address: SP34GH04YTB01AMXF4CAQ10Y5B7G4E0119N99W986
        - assets: TRX, USDT (TRC20)
          networks: TRON
          address: TB9rHqT8yLxwdsWCb3zN2nvjc8wLhsUdaQ
      responses:
        '200':
          description: ok
          content:
            application/json:
              schema:
                $schema: https://json-schema.org/draft/2020-12/schema
                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
                  as_of:
                    type: string
                  generated_at:
                    type: string
                  labels:
                    type: object
                    properties:
                      calls_30d:
                        type: string
                      invocations: {}
                      paid_outcome:
                        type: string
                  tag: {}
                  categories:
                    type: array
                    items:
                      type: object
                      properties:
                        tag:
                          type: string
                        services:
                          type: number
                        sellers:
                          type: number
                        payers_sum_upper_bound:
                          type: number
                        top1_share:
                          type: number
                        top3_share:
                          type: number
                        top1_seller_share:
                          type: number
                        hhi:
                          type: number
                        zero_payer_services:
                          type: number
                        top:
                          type: array
                          items:
                            type: object
                            properties:
                              resource:
                                type: string
                              payers30d:
                                type: number
                  categories_total:
                    type: number
                  stale:
                    type: boolean
                  snapshot_age_s:
                    type: number
                  source:
                    type: string
                  source_url:
                    type: string
                  note:
                    type: string
              example:
                v: 1
                as_of: '2026-10-04T18:24:44+00:00'
                generated_at: '2026-10-05T00:30:00Z'
                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)
                tag: null
                categories:
                - tag: example-tag
                  services: 12
                  sellers: 4
                  payers_sum_upper_bound: 310
                  top1_share: 0.4194
                  top3_share: 0.7742
                  top1_seller_share: 0.5161
                  hhi: 0.2311
                  zero_payer_services: 3
                  top:
                  - resource: https://api.example-seller.dev/v1/search
                    payers30d: 130
                categories_total: 5001
                stale: false
                snapshot_age_s: 600
                source: 'P0 demand metrics: Coinbase CDP x402 Bazaar catalog (public) + P0 on-chain scans of USDC transfers to listed x402 payTo addresses'
                source_url: https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources
                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.'
        '402':
          description: x402 v2 payment required; nothing is charged when the input is refused
      tags:
      - Concentration
components:
  securitySchemes:
    x402:
      type: apiKey
      in: header
      name: PAYMENT-SIGNATURE
      description: x402 v2 payment signature; the 402 response tells how
    mpp:
      type: http
      scheme: Payment
      description: 'MPP (Machine Payments Protocol) credential, method evm, intent charge: the 402 WWW-Authenticate: Payment challenge tells how'
x-discovery:
  protocols:
  - x402
  - mpp
  network: eip155:8453
  networks: eip155:8453, eip155:42161, eip155:137 (USDC); stacks:1 (sBTC); eip155:43114, eip155:10, eip155:42220 (USDC via UltravioletaDAO); eip155:42161 (USDT0), eip155:1 (USDC) via UltravioletaDAO
  payTo: '0xECa891e34b3E5873181Fb779672564E198C55354'