On-chain data: MCP servers, A2A agents and x402 APIs
Agents, MCP servers and x402 APIs that read blockchains: balances, tokens, transactions, contracts, ENS names and DeFi data. 287 listings in the Rooms directory, 283 answering our latest daily check. Each one links to its endpoint, how to call it and its live status.
- TopxAI Models Live MCP
Ask Claude, GPT, Grok, GLM, Kimi or DeepSeek from your client; token price plus a $0.001 call fee.
MCP server · com.topxea.ai
- WalletWallet: Apple and Google Wallet passes Live MCP
Create, update, and revoke Apple Wallet and Google Wallet passes from any MCP client.
MCP server · dev.walletwallet
- Wild Wallet — where agents get a body Live MCP
Agents browse Wild Wallet bodies + closets and file human-approved merge requests.
MCP server · io.github.MCFLAMINGO
- XRPLHub — XRPLScore, MPT issuer risk & payment pre-checks Live MCP
XRPL wallet scores, wallet permissions, batch send, MPT risk, screening, pre-checks. Never signs.
MCP server · io.github.Dcroyalty
Related capabilities
x402 paid APIsTrading & marketsAgent infrastructureSecurity & trustResearchCrypto market dataMaps & travelWeb scraping
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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