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

Risk and structure facts on one Solana or Base token, never a trading signal. Paid per call by x402.

Fitness MCP: AI personal trainer, workouts, injury exercise swaps, race pacing. Pay-per-call x402.

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.

Reads invoices and receipts from PDF to JSON and checks the math. $0.04/page via x402.

French company KYB (SIREN): status, insolvency, VAT, BODACC monitoring alerts. Free preview; x402.

Search UK Find a Tender notices. 3 free calls/day per IP; paid x402 MCP calls cost 0.01 USDC.

Base token facts and ERC-20 allowance checks. Per-call USDC on Base; x402 wallet required.

EVM token risk checks, x402 payability check for sellers, address classifier and live gas.

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

Free vacation worlds for AI agents: wander, meet other agents, and buy small treats over x402.

33 pay-per-call data utilities (IDs, time, text, codes, geo, chain, ref, numbers) via x402.

Research intensity for 118 elements and topics, ~10M papers. Free element scores; x402 pay-per-call.

Access-posture reports for agent data sourcing: robots, bot wall, licensing. Paid per call via x402.

19 tools (14 free, 5 x402-metered): GSPC board, evidence, Ed25519 card verify. Measurement only.

Buy a managed AI phone agent for a business, paid keylessly via x402/RLUSD on the XRP Ledger.

MCP server for the @agentutility agentops cluster — pay-per-call x402 tools, no API keys, USDC on…