P0 Agent Economy Index Quote API

The Quote API from P0 Agent Economy Index — 1 operation(s) for quote.

Operations 1

GET /quote/swap Use for a DEX swap quote with a ready unsigned transaction: best route from… #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/p0-agent-economy-index:p0-agent-economy-index-quote-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

p0-agent-economy-index-quote-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: P0 Agent Economy Index Quote 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: Quote
paths:
  /quote/swap:
    get:
      summary: 'Use for a DEX swap quote with a ready unsigned transaction: best route from…'
      operationId: quote_swap
      parameters:
      - name: chain
        in: query
        required: true
        description: base, arbitrum, ethereum, optimism, polygon or bsc (or chain id)
        schema:
          type: string
        example: base
      - name: from
        in: query
        required: true
        description: 'token to sell: symbol (USDC, WETH, ETH...) or 0x address'
        schema:
          type: string
        example: USDC
      - name: to
        in: query
        required: true
        description: 'token to buy: symbol or 0x address'
        schema:
          type: string
        example: WETH
      - name: amount
        in: query
        required: true
        description: amount to sell in base units (10 USDC = 10000000)
        schema:
          type: string
          pattern: ^[0-9]{1,78}$
        example: '10000000'
      - name: taker
        in: query
        required: true
        description: wallet that will sign and send the swap
        schema:
          type: string
          pattern: ^0x[0-9a-fA-F]{40}$
        example: '0x1111111111111111111111111111111111111111'
      - name: slippage_bps
        in: query
        required: false
        description: max slippage in basis points (50 = 0.5%). The alias 'slippage' is read as basis points too (Velora's unit); a 'slippage' below 10 is refused as ambiguous
        schema:
          type: integer
          minimum: 1
          maximum: 500
          default: 50
        example: 50
      - name: from_decimals
        in: query
        required: false
        description: only for tokens P0 does not know
        schema:
          type: integer
          minimum: 0
          maximum: 36
      - name: to_decimals
        in: query
        required: false
        description: only for tokens P0 does not know
        schema:
          type: integer
          minimum: 0
          maximum: 36
      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:
                - chain
                - chainId
                - provider
                - fallbackFrom
                - fallbackReason
                - sellToken
                - buyToken
                - sellAmount
                - buyAmount
                - slippageBps
                - tx
                - approval
                - integratorFee
                - gasEstimate
                - quotedAt
                - note
                properties:
                  chain:
                    type: string
                  chainId:
                    type: number
                  provider:
                    type: string
                  fallbackFrom: {}
                  fallbackReason: {}
                  sellToken:
                    type: object
                    properties:
                      address:
                        type: string
                      symbol:
                        type: string
                      decimals:
                        type: number
                  buyToken:
                    type: object
                    properties:
                      address:
                        type: string
                      symbol:
                        type: string
                      decimals:
                        type: number
                  sellAmount:
                    type: string
                  buyAmount:
                    type: string
                  slippageBps:
                    type: number
                  tx:
                    type: object
                    properties:
                      from:
                        type: string
                      to:
                        type: string
                      data:
                        type: string
                      value:
                        type: string
                      chainId:
                        type: number
                  approval:
                    type: object
                    properties:
                      token:
                        type: string
                      spender:
                        type: string
                      amount:
                        type: string
                  integratorFee:
                    type: object
                    properties:
                      bps:
                        type: number
                      percent:
                        type: number
                      receiver:
                        type: string
                      chargedOn:
                        type: string
                      token:
                        type: string
                      amount:
                        type: string
                      inCalldata:
                        type: boolean
                      confirmed:
                        type: boolean
                      split:
                        type: object
                        properties:
                          p0:
                            type: number
                          aggregator:
                            type: number
                      note:
                        type: string
                  gasEstimate:
                    type: string
                  quotedAt:
                    type: string
                  note:
                    type: string
              example:
                chain: base
                chainId: 8453
                provider: velora
                fallbackFrom: null
                fallbackReason: null
                sellToken:
                  address: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'
                  symbol: USDC
                  decimals: 6
                buyToken:
                  address: '0x4200000000000000000000000000000000000006'
                  symbol: WETH
                  decimals: 18
                sellAmount: '10000000'
                buyAmount: '3695089715876312'
                slippageBps: 50
                tx:
                  from: '0x1111111111111111111111111111111111111111'
                  to: '0x6a000f20005980200259b80c5102003040001068'
                  data: 0x876a02f6...(shortened example)
                  value: '0'
                  chainId: 8453
                approval:
                  token: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'
                  spender: '0x6a000f20005980200259b80c5102003040001068'
                  amount: '10000000'
                integratorFee:
                  bps: 20
                  percent: 0.2
                  receiver: '0xECa891e34b3E5873181Fb779672564E198C55354'
                  chargedOn: output
                  token: '0x4200000000000000000000000000000000000006'
                  amount: '7404989410574'
                  inCalldata: true
                  confirmed: true
                  split:
                    p0: 0.85
                    aggregator: 0.15
                  note: Integrator fee of 20 bps (0.20%) of this swap is taken by the aggregator contract inside the swap transaction you sign; buyAmount already excludes it. Velora keeps 15% of that fee and P0 receives 85% (about 17 bps).
                gasEstimate: '131096'
                quotedAt: '2026-10-04T18:37:00.000Z'
                note: 'Unsigned transaction for you to review, sign and broadcast yourself. P0 never signs, holds or sends funds. Quotes go stale within seconds: run eth_estimateGas and send promptly, or request a new quote. Not financial advice.'
        '402':
          description: x402 v2 payment required; nothing is charged when the input is refused
      tags:
      - Quote
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'