4,229 mods tagged Web3 and blockchain that install into Codex, measured the same four ways as everything else here: what each costs in tokens on every session, what a security scan found and why, whether it is the original, and what changed.
MCP server Claude CodeCodexCursor +2
MCP server for MEV-relevant on-chain data: gas price percentiles and bounded mempool watching for pending swaps. Runs locally from the mev-mcp Python package.
MCP server Claude CodeCodexCursor +2
Turnkey MCP server for AgentKarma — the reputation layer for autonomous on-chain agents. stdio + HTTP. Run with npx @agentkarma/mcp. Runs locally from the @agentkarma/mcp npm package.
MCP server Claude CodeCodexCursor +2
MCP server for interacting with Hyperledger Fabric blockchain networks. Runs locally from the fabric-mcp-server npm package.
MCP server Claude CodeCodexCursor +2
Flare for agents: FTSO prices with locally verified Merkle proofs, FDC, FAssets, x402 pay. Runs locally from the flario npm package. Needs 4 environment variables to run.
MCP server Claude CodeCodexCursor +2
RouteMesh MCP server for cross-chain RPC data and transactions. Runs locally from the @routemesh/mcp npm package.
Skill Claude CodeCodex
Search 14,700 x402-payable HTTP endpoints by capability, chain, host and maximum price. Use when an agent needs an API it can pay for per call with USDC, wants to know what a call costs before making it, or is looking for machine-payable data sources.
MCP server Claude CodeCodexCursor +2
Deribit derivatives exchange: index prices, tickers, and supported indexes. No key required. Runs locally from the deribit-mcp npm package.
Skill Claude CodeCodex
Use when a Grok bot should talk to Grok Chain via the official MCP (createaccount, grants, checkgrant, pay). Never ask for seeds or keys. Bot never holds SOL.
ProofCore-Protocol/proofcore-mcp
Skill Claude CodeCodex
Cryptographically notarizes text, smart contract audits, and documents on the TON Blockchain with immutable provenance proofs.
MCP server Claude CodeCodexCursor +2
One of 2 in .mcp.json
MCP server "nft-log-analyzer" as configured in mashish/nft-log-analyzer. Runs mcp_server/server.py with python. Needs 5 environment variables to run.
MCP server Claude CodeCodexCursor +2
A marketplace where AI agents discover MCP services and buy them from other agents per call in USDC via x402, auto-paid from your wallet — plus a non-custodial USDC-to-bank cash-out (licensed provider), first-party Base chain data and token safety. Runs locally from the fiatdock-mcp npm package. Needs 3 environment…
MCP server Claude CodeCodexCursor +2
MCP server "gittr-mcp" as configured in arbadacarbaYK/gittr-mcp. Runs locally from the gittr-mcp npm package. Needs 3 environment variables to run.
MCP server Claude CodeCodexCursor +2
DataFood: 16 data sources (crypto/DeFi/security/news/finance) via one MCP. Bundles save 92%. Remote server at toughlovesec.win.
MCP server Claude CodeCodexCursor +2
53-tool MCP server for Sui blockchain — wallets, DeFi, Move contracts, staking, SuiNS, analytics. Runs locally from the sui-mcp-server npm package.
Skill Claude CodeCodex
Delora MCP exposes the Delora API (api.delora.build) so you can fetch cross-chain quotes, supported chains, tokens, and tools.
MCP server Claude CodeCodexCursor +2
MCP server for LiveAuth: PoW + Lightning auth, L402 bundles, and paid MCP tool receipts. Runs locally from the @liveauth-labs/mcp-server npm package. Needs 3 environment variables to run.
lordbasilaiassistant-sudo/base-security-scanner-mcp
MCP server Claude CodeCodexCursor +2
MCP server to scan smart contracts on Base for honeypots, rug pulls, and vulnerabilities. Runs locally from the base-security-scanner-mcp npm package. Needs 1 environment variable to run.
lordbasilaiassistant-sudo/mcp-servers
MCP server Claude CodeCodexCursor +2
One of 4 in server.json
Smart contract security scanner — vulnerabilities, risk scores, and calldata decoding. Runs locally from the @thryx/contract-scanner-mcp-server npm package. Needs 4 environment variables to run.
douglasborthwick-crypto/mcp-server-insumer
Skill Claude CodeCodex
Privacy-preserving on-chain verification across 37 blockchains (incl. Bitcoin, Tron, Stellar, Sui). Verify wallet holdings, NFT ownership, EAS attestations, and identity with ECDSA-signed proofs. No balances exposed.
MCP server Claude CodeCodexCursor +2
Wormhole - 69 tools for cross-chain transfers and bridge data. Remote server at wormhole.mcp.junct.dev.
MCP server Claude CodeCodexCursor +2
MCP server "ens-mcp" as configured in kukapay/ens-mcp. Runs locally from the ens-mcp Python package.
MCP server Claude CodeCodexCursor +2
MCP server "mcp-blockchain-query" as configured in pavel-bc/mcp-blockchain-query. Runs locally from the mcp-blockchain-query Python package.
MCP server Claude CodeCodexCursor +2
Solana MCP server for wallet management, transaction handling, and program interactions on Solana blockchain. Runs locally from the solana-mcp-server npm package.
MCP server Claude CodeCodexCursor +2
MCP server for bamm (borrow automated market maker). Runs locally from the @iqai/mcp-bamm npm package.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: