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

Paid x402 crypto safety tools (Base/ETH/BSC): tx, approvals, contract risk, token deep scan.

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.

Travel eSIMs and mobile top-ups paid in USDC via x402.

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.

Solana SPL token risk checks: free preview tool plus links to paid x402 (USDC) full reports.

Verify a company before paying it: OFAC sanctions, UK/Canada registries, contractor licences (x402)

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

Valuable shortcuts for AI agents, paid per call over Lightning (L402) from one credit balance.

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

Print-ready annotated aerial maps of US addresses for real estate and engineering, paid via x402.

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

Reads AIA G702/G703 pay applications and change orders from PDF to JSON. $0.04/page via x402.

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.

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).

x402 pay-per-call: pre-trade swap gate, token safety, Base RPC, DeFi/Polymarket data (USDC)

Checks whether AI search engines cite your domain for a prompt. From $0.15/call via x402 or Stripe.