AI models & inference: MCP servers, A2A agents and x402 APIs
Call AI models through an agent or MCP server: chat completions, embeddings and model gateways. 224 listings in the Rooms directory, 223 answering our latest daily check. Each one links to its endpoint, how to call it and its live status.
- x402-store.dgdb.workers.dev Live x402
Decode an EVM signature request (EIP-712 typed data, Permit/Permit2, or ERC-20 approve calldata) into a structured intent: what token, which spender, how much, until when, plus risk_flags and an action_hint. Determinist…
x402 paid API · 2 endpoints
- x402joker.com Live x402
Pay-per-joke vending machine: send USDC, get a fresh Claude-generated joke. Optional "theme" picks the topic.
x402 paid API · 1 endpoint
- Surplus Intelligence x402
Buy the cheapest inference. Sell your credits. The open order book for AI models. Up to 90% off Claude Opus 5.5, GPT 6 Astra, and more.
x402 paid API · 1 endpoint · check 90/100
Related capabilities
x402 paid APIsWeb scrapingAgent infrastructureOn-chain dataMarketing & SEOVideo & audioKnowledge & memoryWeb search
How to use one
MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.
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