Web3 and blockchain MCP servers

kwizzlesurp10-ctrl/x402-mcp

MCP server Claude CodeCodexCursor +2

Pay for HTTP APIs and charge for your own: x402 micropayments in USDC on Base. Remote server at x402-mcp.onrender.com.

matiosera3-ops/defi-mcp

MCP server Claude CodeCodexCursor +2

An MCP server giving AI agents access to DeFi data on EVM chains. Runs locally from the defi-mcp Python package. Needs 2 environment variables to run.

mizukaizen/x402-tools-mcp

MCP server Claude CodeCodexCursor +2

22 x402 pay-per-call utility tools for AI agents — scrape, validate, embed, store, moderate, notify, convert, prevent loops. No accounts, no API keys. USDC on Base via the x402 protocol. Runs locally from the @melis-ai/x402-tools-mcp npm package. Needs 2 environment variables to run.

paladinfi/paladin-swap-mcp

MCP server Claude CodeCodexCursor +2

Multi-aggregator swap router for AI agents on Base. 10 bps fee. MCP-native, non-custodial. Remote server at swap.paladinfi.com.

NerveNetwork/nerve-agent

MCP server Claude CodeCodexCursor +2

MCP server for Nerve blockchain JSON-RPC & REST API for AI Agents. Runs locally from the nerve-rpc-mcp npm package.

predgeAI/whale-data-mcp

MCP server Claude CodeCodexCursor +2

Signed settled outcomes (Polymarket, sports, Kalshi) + whale signals as agent tools, paid via x402. Runs locally from the @predge/whale-data-mcp npm package. Needs 7 environment variables to run.

razz-games/razz-mcp

MCP server Claude CodeCodexCursor +2

Play provably fair games with real SOL wagering from any AI agent. Runs locally from the @razzgames/mcp-server npm package. Needs 3 environment variables to run.

re-bruce-wayne/openclaw-skills

MCP server Claude CodeCodexCursor +2

Non-custodial Solana swap & limit order engine for AI agents. Runs locally from the @re-bruce-wayne/trade-router-mcp npm package. Needs 3 environment variables to run.

plus8bit/deadchannel

MCP server Claude CodeCodexCursor +2

One of 2 in server.json

Check an x402 endpoint before you pay it: verdict, risk score and what is wrong. $0.005 in USDC. Runs locally from the deadchannel-mcp npm package. Needs 2 environment variables to run.

printmoneylab/x402watch

MCP server Claude CodeCodexCursor +2

Wash-filtered intelligence for x402: categories, services, wash analysis, trends. Remote server at api.x402.printmoneylab.com.

pythia-the-oracle/pythia-oracle-mcp

MCP server Claude CodeCodexCursor +2

Every smart contract deserves intelligence, not just data. Pythia Oracle MCP server — on-chain calculated indicators via Chainlink. Runs locally from the pythia-oracle-mcp Python package.

san-techie21/astracipher

MCP server Claude CodeCodexCursor +2

Cryptographic identity for AI agents: W3C DIDs, Verifiable Credentials, post-quantum crypto. Runs locally from the @astracipher/core npm package.

sebastienrousseau/ap2-iso20022

MCP server Claude CodeCodexCursor +2

Bridge AP2 (Agent Payments Protocol) and x402 agent-payment mandates into wire-valid ISO 20022 pain.001 / pacs.008 records, with spending-cap, expiry and authorisation guardrails. Includes an MCP server. Runs locally from the ap2-iso20022 Python package.

verdochello/verdoc-mcp

MCP server Claude CodeCodexCursor +2

MCP server "verdoc-mcp" as configured in verdochello/verdoc-mcp. Launched with https://github.com/verdochello/verdoc-mcp/releases/download/v0.1.0/verdoc-mcp-0.. Needs 2 environment variables to run.

txtcel/txtcel-mcp

MCP server Claude CodeCodexCursor +2

MCP server for the Txtcel Solana protocol: agents post and read undeletable on-chain messages. Runs locally from the @txtcel/mcp npm package. Needs 6 environment variables to run.

xkumakichi/xaip-protocol

MCP server Claude CodeCodexCursor +2

AI agents get on-chain identity, credentials, reputation, escrow, and persistent memory on XRPL. Runs locally from the xaip-mcp-server npm package.

x402node/x402-mcp

MCP server Claude CodeCodexCursor +2

Hundreds of x402-paid APIs as MCP tools, auto-discovered from Coinbase Bazaar. USDC on Base+Solana. Runs locally from the x402node-mcp npm package. Needs 1 environment variable to run.

xenarch-ai/xenarch-mcp

MCP server Claude CodeCodexCursor +2

Xenarch — x402 MCP server for AI agent payments. Non-custodial, USDC on Base L2. Runs locally from the @xenarch/agent-mcp npm package. Needs 4 environment variables to run.

xkelxmc/uranium-mcp

MCP server Claude CodeCodexCursor +2

MCP for Uranium NFT tools to mint, list, and manage digital assets on the permaweb. Runs locally from the uranium-tools-mcp npm package. Needs 1 environment variable to run.

xona-labs/xpay

MCP server Claude CodeCodexCursor +2

Xona Wallet: agent wallet for AI agents. x402 payments, AgenC hires, 20k+ services. Runs locally from the @xona-labs/xpay npm package. Needs 7 environment variables to run.

wkalidev/multichain-mcp

MCP server Claude CodeCodexCursor +2

MCP server for AI agents — Stacks, Celo, and Base in one npm package. Runs locally from the @wkalidev/multichain-mcp npm package. Needs 1 environment variable to run.

wuzenghai616-lang/goldbean

MCP server Claude CodeCodexCursor +2

One of 2 in server.json

49 pay-per-use APIs for AI agents via x402. AI, crypto, DeFi, blockchain, weather, search, security. Runs locally from the goldbean-mcp npm package.

ToolOracle/flareoracle

MCP server Claude CodeCodexCursor +2

FlareOracle - 12 Flare tools: FTSO oracles, FAssets, state connector, FXRP, FlareDrops. Remote server at tooloracle.io.

Logitale/toreador-mcp-server

MCP server Claude CodeCodexCursor +2

Generate crypto QR codes (BTC, ETH, SOL, USDC, USDT, EURC) and manage payment sessions. Runs locally from the @toreador/mcp-server npm package.