P0: x402 service search

Use when a router agent must pick which paid x402 service to send a task to: send the task in plain words, get the top listing from P0's snapshot of listed x402 services plus up to 4 alternatives. Returns the exact paid x402 request for your input (GET /route, $0.01 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. Returns a recommendation for one task; to browse or compare services use search_x402_services. With a P0 access key (header Authorization: Bearer p0k_…, buy one at https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/keys/buy?usd=5) this tool makes the paid call itself and returns the data, deducting the listed price.

Use when you need the agent economy beyond x402 in one call: per protocol. Returns the exact paid x402 request for your input (GET /economy, $0.003 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. With a P0 access key (header Authorization: Bearer p0k_…, buy one at https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/keys/buy?usd=5) this tool makes the paid call itself and returns the data, deducting the listed price.

Use when you need one agent-economy protocol in detail: every normalised row (per chain or rail, all-time and 30-day windows) for x402, Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004. Returns the exact paid x402 request for your input (GET /economy/protocols, $0.002 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. With a P0 access key (header Authorization: Bearer p0k_…, buy one at https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/keys/buy?usd=5) this tool makes the paid call itself and returns the data, deducting the listed price.

Use when you need callable agent services for a capability across protocols: verified x402 sellers (Agenstry, Open 402, pay.sh; price, networks, evidence), MCP servers. Returns the exact paid x402 request for your input (GET /economy/search, $0.002 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. With a P0 access key (header Authorization: Bearer p0k_…, buy one at https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/keys/buy?usd=5) this tool makes the paid call itself and returns the data, deducting the listed price.

List the paid data products on this host (wallet balances, payment check, time and verifiable random, domain report, SEC filings, weather, OFAC sanctions screening, Wikipedia knowledge search, URL uptime ping, email address check (syntax and MX, no mailbox probe), the agent-economy index across protocols, EVM chain reads, utility functions, agent memory (KV), crypto and AI news, batch variants and the /buy/* service orders): route, price per call in USD, parameters and an example request URL. The data itself is paid per call over x402 or MPP at that URL. Lists THIS host's own paid tools only; to find third-party APIs use search_x402_services.

Search verified x402 sellers by capability (a set compiled from Agenstry, Open 402, pay.sh, the Official MCP Registry and apis.io listings, with price, networks and evidence of a live 402 challenge or manifest). Free tier returns the top 5; full results are available as the paid /search endpoint (x402 or MPP) on the same host. Calls and paying wallets, where shown, are P0's own on-chain counts of transfers to each seller's wallet (null where not measured). Not for picking one service for a concrete task (use best_service_for_task), for market-wide totals (use x402_market_stats) or for this host's own products (use list_paid_data_products).

Statistics of the verified x402 seller set (sellers by source and evidence, median declared price) and 30-day x402 market totals from x402stats (CC BY 4.0, attributed in the answer). Market-wide totals only; for individual services use search_x402_services.