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.
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.
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.
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.
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.
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.
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.
Skill Claude CodeCodex
Give an AI agent its own wallet and let it discover and pay for services. Use when the agent needs to find a paid API/service, pay for a call (x402 / USDC), send USDC to an address, check its balance, or review spending. Works from any agent framework (Claude, Codex, OpenAI, Gemini, custom) via MCP, CLI, or SDK.
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.
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.
MCP server Claude CodeCodexCursor +2
FlareOracle - 12 Flare tools: FTSO oracles, FAssets, state connector, FXRP, FlareDrops. Remote server at tooloracle.io.
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.
MCP server Claude CodeCodexCursor +2
Blockchain-anchored e-signatures: send envelopes, manage templates, verify anchors on Solana. Runs locally from the @signatrust/mcp-server npm package. Needs 2 environment variables to run.
dimitrov-d/solana-limit-order-mcp
MCP server Claude CodeCodexCursor +2
MCP server "solana-limit-order-mcp" as configured in dimitrov-d/solana-limit-order-mcp. Launched with tsx /full/path/to/index.ts. Needs 2 environment variables to run.
Skill Claude CodeCodex
Smart contract security audit — 10 DeFi bug classes (accounting desync, access control, incomplete path, off-by-one, oracle, ERC4626, reentrancy, flash loan, signature replay, proxy), pre-dive kill signals (TVL < $500K etc), Foundry PoC template, grep patterns for each class, and real Immunefi paid examples. Use for…
lordbasilaiassistant-sudo/base-lp-locker-mcp
MCP server Claude CodeCodexCursor +2
MCP server for AI agents to lock, manage, and withdraw LP tokens on Base. Trustless liquidity locking with time-based unlock. Runs locally from the base-lp-locker-mcp npm package.
Skill Claude CodeCodex
Diagnose failed Soroban transactions and simulations deterministically. Use when a Stellar/Soroban transaction failed, a simulation returned an error, the user pastes an opaque code like Error(Contract.
MCP server Claude CodeCodexCursor +2
Pion — Model Context Protocol (MCP) server for Pi Network. Read-only chain queries against Pi Mainnet and Testnet; payments are testnet-only. Runs locally from the pion-mcp npm package.
MCP server Claude CodeCodexCursor +2
An MCP server that provides Ethereum blockchain data tools via Etherscan's API. Runs locally from the mcp-etherscan-server npm package.
lordbasilaiassistant-sudo/base-escrow-mcp
MCP server Claude CodeCodexCursor +2
MCP server for AI agents to create and manage P2P escrow deals (ETH or ERC-20) on Base. Trustless trades with dispute resolution — one tool call. Runs locally from the base-escrow-mcp npm package.
MCP server Claude CodeCodexCursor +2
MCP server exposing the Kraken cryptocurrency exchange REST API over HTTP with bearer-token authentication. Runs locally from the mcp-kraken Python package.
incentivai-io/privy-mcp-server
MCP server Claude CodeCodexCursor +2
MCP server for Privy.io API - user statistics, wallet management, and authentication. Runs locally from the privy-mcp-server Python package.
MCP server Claude CodeCodexCursor +2
A Model Context Protocol server for interacting with Nostr, enabling posting notes and more. Runs locally from the nostr-mcp npm package.
MCP server Claude CodeCodexCursor +2
AI-powered MCP server for Hedera blockchain development - integrates with Claude Desktop, Cursor, Windsurf, and VS Code. Runs locally from the hashpilot npm package.
MCP server Claude CodeCodexCursor +2
A MCP server for interacting with blockchains via Infura APIs. Runs locally from the infura-mcp 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: