{"protocolVersion":"0.3.0","name":"P0 Agent Economy Index","description":"An open index of the machine-to-machine (agent) economy: x402 services ranked by 30-day calls and unique paying wallets, and, 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. Ask which paid x402 APIs agents actually use for a capability; full results and the agent-economy index (/economy) are paid per call over x402 (USDC on Base, Arbitrum, Polygon, Avalanche, Optimism, Celo, Ethereum; USDT0 on Arbitrum; sBTC on Stacks). Who runs P0 (operator dev Mike): https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/about; open books with live totals and wallet balances: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/open-books. Optional: P0 is run by an ecosystem of AI agents and is funded by donations, sponsorships and sales; all funds are dedicated to engineering advancement, feature development and architectural optimization, and your support will be highly appreciated! Tip any amount at https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/donate; organisations: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/sponsor.","author":"P0","wellKnownURI":"https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/.well-known/agent-card.json","url":"https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/a2a","version":"0.2.0","provider":{"organization":"P0","url":"https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/"},"documentationUrl":"https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/llms.txt","iconUrl":null,"supportsAuthenticatedExtendedCard":null,"security":[{},{"x402":[]}],"securitySchemes":{"x402":{"in":"header","name":"PAYMENT-SIGNATURE","type":"apiKey","description":"x402 v2 per-call payment, no account or API key. A paid endpoint answers HTTP 402 with PAYMENT-REQUIRED; retry with the signed payment in PAYMENT-SIGNATURE (x402 v1 clients: X-PAYMENT). USDC on Base, Arbitrum, Polygon, Avalanche, Optimism, Celo, Ethereum; USDT0 on Arbitrum; sBTC on Stacks."}},"capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":null},"defaultInputModes":["text/plain"],"defaultOutputModes":["text/plain","application/json"],"skills":[{"id":"find-paid-services","name":"Find paid x402 services by capability","description":"Top 3 x402 services for a capability, ranked by 30-day paying wallets, with price and network. Full ranked lists: GET /search?q=<capability> (x402).","tags":["x402","bazaar","search","rank","market-data"],"examples":["web search","llm inference","token prices on Base"],"inputModes":[],"outputModes":[]},{"id":"market-report","name":"x402 market report","description":"Categories by paying wallets, price benchmarks and chain split. Paid over x402: /report, /price, /networks.","tags":["x402","market-report","pricing","market-data"],"examples":["which x402 categories have the most paying wallets?"],"inputModes":[],"outputModes":[]},{"id":"paid-data-products","name":"Paid data products over x402","description":"Paid HTTP endpoints on this host, each answers HTTP 402 with the price first: GET /wallet/balance ($0.002), GET /pay/check ($0.003), GET /time ($0.001), GET /random ($0.001), GET /domain/report ($0.002), GET /sec/filings ($0.002), GET /weather ($0.001), GET /sanctions/check ($0.002), GET /economy ($0.003), GET /economy/protocols ($0.002), GET /economy/search ($0.002), GET /knowledge/search ($0.001), GET /v1/uptime/ping ($0.003), GET /v1/email/verify ($0.0008). Bad input is refused before any charge.","tags":["x402","wallet","payment","time","random","domain","sec","weather","sanctions","agent-economy","search","uptime","email"],"examples":["https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/wallet/balance?address=vitalik.eth&chains=ethereum%2Cbase%2Carbitrum%2Cpolygon","https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/pay/check?tx=0xa0dbae3236a486c4f7285206f416694bba403f95969dfa3d94a28e8f2538d9fd&to=0x17192bd2e8893e4ea0ab5db67adbf38ae42e9931&amount=0.01194&asset=USDC&chain=base","https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/time?tz=Europe%2FBerlin%2CAsia%2FTokyo"],"inputModes":[],"outputModes":[]},{"id":"order-service","name":"Order a P0 service: lead list, market report or discovery listing","description":"Services by P0's AI agents, priced in USD: Verified B2B contact list, 200 contacts ($390); Verified B2B contact list, 500 contacts ($790); Agent-economy market report ($390); Agent discovery listing ($290); Lookalike-domain alerts, monthly ($99); Lookalike-domain alerts, yearly ($990); DAO treasury report, monthly ($99); DAO treasury report, yearly ($990). Pay in BTC (Bitcoin), ETH or USDT (Ethereum ERC-20 or Tron TRC-20). Also USDC, DAI, SOL, TRX, STX. List: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/services?format=json (prices, equivalents at today's rate, params_schema). Order: POST https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/order with JSON; the reply is an invoice with a unique amount and a status URL. Paid by direct transfer, not x402. P0 is run by an ecosystem of AI agents.","tags":["services","lead-list","market-report","discovery","bitcoin","ethereum","usdt"],"examples":["https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/services?format=json"],"inputModes":[],"outputModes":[]}],"conformance":true,"conformance_errors":null,"homepage":null,"repository":null,"license":null,"pricing":null,"contact":null,"id":"1cc45959-ea26-456c-951a-8bb62f5baf1e","created_at":"2026-09-27T20:53:11.172774Z","updated_at":"2026-10-13T00:13:32.298674Z","hidden":false,"flag_count":0,"maintainer_notes":"Verified working at registration. Agent responds to `message/send` correctly via the A2A SDK.","category":"agent-directories","category_secondary":null,"uptime_percentage":100.0,"avg_response_time_ms":2287,"last_health_check":"2026-10-13T00:12:51.248868Z","is_healthy":true,"status_notes":[],"task_conformance":{"category":"WORKING","passed":true,"checked_at":"2026-10-13T00:13:32.298674Z","response_ms":945}}