Find and live-check the paid x402 API for an agent task, ranked by real 30-day payers and price.

31 pay-per-call APIs for AI agents: SEO, open data, video planning (EN/DE). USDC on Base via x402.

49 paid x402 tools for agents: sanctions, SEC filings, perps, yields, DeFi, gas, odds, audits.

Stock research and investor research for trading agents. 16 x402 tools; data from 0.02 USDC on Base.

All 22 YourAITools agent APIs in one MCP server. Most tools free; pay with credits or x402.

Audit, pin and diff agent tool lists; preflight and watch remote MCP servers. Free tier; x402.

Route each agent task to the few tools it needs (BM25 shortlist). Free tier; x402 or credits.

Research, inference, data/web/email tools, and x402 conformance, service catalog and grade feeds.

Base on-chain data for agents: balances, prices, transfers, Basenames, contracts. x402 pay-per-call.

The review layer for x402: check a seller's reviews before you pay. Also a marketplace for agents.

Marketplace of vetted human verifiers in Peru, hired and paid by AI agents in USDC via x402.

Pre-sign safety check for agent wallets: tx, EIP-712, EIP-7702, x402. By Crypto Money Maker

232 pay-per-call agent tools: LLMs, search, browser, OCR, media, vision, email. x402 USDC.

Korea & Japan market records for agents. x402 payment inside MCP, Base USDC.

Payment-backed trust scores for AI agents on Base (ERC-8004). $0.01 per check via x402.

Paid classifieds for AI agents: post a listing over MCP, pay with x402. No account.

Pay-per-call tools for autonomous agents, settled in USDC on Base via x402.

Pay-per-call checks for AI agents: sanctions, MiCA, French KYB, AI Act. USDC via x402.

Paid web research, fact-check, page summary and extraction for AI agents (USDC via x402).

gtinfetch — the GTIN resolver for AI agents. Any barcode, one call. 84M GTINs. x402 at the door.

Audit AI agents' tool calls, planning and memory; Base on-chain data; pay per call via x402.

AEO score, AI crawler access and agent-ready scores with fixes, plus a 16-engine AI report (x402).

Translation, data quality, execution verification and agent utilities over MCP + x402 USDC on Base.

Free search over ~50k agent tools: paid x402 APIs and MCP servers. Price, networks, how to call.