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
Q402 - gasless payments, yield, escrow, bridge & NAV triggers on 12 EVM chains. Sandbox-default. Runs locally from the @quackai/q402-mcp npm package. Needs 12 environment variables to run.
TAG-IT-NETWORK/tagit-dashboard
MCP server Claude CodeCodexCursor +2
Verify on-chain lifecycle state and provenance of NFC-tagged physical products. Remote server at verify.tagit.network.
MCP server Claude CodeCodexCursor +2
Resolve wallet addresses to X and Farcaster accounts, and back again. Remote server at walletlink.social.
warengonzaga/relay-protocol-mcp-server
MCP server Claude CodeCodexCursor +2
MCP server "relay-protocol-mcp" as configured in warengonzaga/relay-protocol-mcp-server. Runs locally from the relay-protocol-mcp npm package.
MCP server Claude CodeCodexCursor +2
A Model Context Protocol server for interacting with Ethereum wallets using Ethers.js. Runs locally from the mcp-ethers-wallet npm package.
madebyshun/blueagent-x402-services
Skill Claude CodeCodex
Security OS for autonomous agents and builders on Base. 31 pay-per-use tools across Quantum Security, Agent Safety, Research, Data, and Earn. Built for AI agents, Zero-Human Companies (ZHC), and Base ecosystem builders. Pay USDC per call via x402 protocol — no subscription, no API key needed.
MCP server Claude CodeCodexCursor +2
MCP server "bitunix" as configured in LuiInventions/Bitunix-MCP. Runs main.py with python. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
MCP server for read-only access to a Bitvavo crypto exchange account. Runs locally from the bitvavo-mcp npm package.
sailorpepe/litvm-tcg-oracle-mcp
MCP server Claude CodeCodexCursor +2
The first MCP server for the LitecoinVM ecosystem — 456K+ trading card products (USD prices frozen 2026-09-07; Japanese + graded panels live), on-chain Merkle proofs, calibrated conformal risk forecasts (frozen USD inputs) (honest VaR + Safe-Hold/Momentum grades), with Monte Carlo (GBM/Merton) available opt-in, on…
adminmetavision-rgb/metavision-mcp
Skill Claude CodeCodex
Web3 AI platform with CVE security scanning, DeFi signals, market intelligence, and 3D generation. Use when: (1) searching CVE vulnerabilities in Web3/smart contracts, (2) getting live DeFi arbitrage signals on Base network, (3) checking wallet security and rug pull detection, (4) generating 3D models from text or…
m-reynaldo35/pq-verifiable-archive
MCP server Claude CodeCodexCursor +2
Post-quantum document anchoring to Algorand mainnet with ML-DSA-65 (NIST FIPS-204) signatures. MCP server for AI agents. Pay-per-anchor REST API via x402. Runs locally from the pq-verifiable-archive npm package.
MCP server Claude CodeCodexCursor +2
MCP Server for Blackhole DEX Skills. Runs locally from the @blackhole-dex/blackhole-mcp-server npm package.
MCP server Claude CodeCodexCursor +2
MCP server for Hood Domains — resolve, look up, and register .hood names on Robinhood Chain. All on-chain, no backend. Runs locally from the hooddomains-mcp npm package.
MCP server Claude CodeCodexCursor +2
Model Context Protocol (MCP) server & monetization tools for PayAgents — Multi-rail AI agent payments (Lightning L402 & Base USDC x402). Runs locally from the payagents-mcp npm package.
GitSerge-crypto/aotrust-skills
Skill Claude CodeCodex
Issue a cryptographic proof (PDR) that a digital artifact existed at a specific time. Pay $0.01 USDC on Base or Solana via x402 (MCP); optional evidence bundle $0.02 and signed time attestation $0.002. Receipts are leaves in an append-only Merkle log anchored hourly to NEAR blockchain; inclusion and consistency proofs…
MCP server Claude CodeCodexCursor +2
MCP server "solrisk-mcp", hosted remotely at solrisk.rugscore.workers.dev, as configured in comil27/solrisk-mcp.
MCP server Claude CodeCodexCursor +2
Agent settlement protocol — discover, negotiate, settle, and verify with XAP. Runs locally from the @agenticamem/xap-mcp npm package. Needs 2 environment variables to run.
TesseraeVentures/ton-dev-skills
MCP server Claude CodeCodexCursor +2
TON blockchain development toolkit — security scanner, migration engine, MCP server, and CLI. Runs locally from the @tesserae/ton-dev-skills npm package.
aitrailblazer/deltasignal-atlas-codex-plugin
Skill Codex needs its repo
Check DeltaSignal x402 seller status from the command line in aitrailblazer-web-intel-mcp, including the configured payout wallet, local settlement artifacts, and CDP discovery status. Use when the user asks which wallet is configured, how to find payments, or wants a CLI status check for x402 revenue and settlements.
Skill Claude CodeCodex
Put an agent's x402 payments under a per-job budget with bounded shares for sub-agents. Use when an agent or its sub-agents pay for APIs, data or other agents with x402 (@x402/fetch, @x402/axios, @x402/core), share one wallet or payment client, run paid calls concurrently, or need each task or child agent capped…
TrueValueRankings/tvr-mcp-server
Skill Claude CodeCodex
Score, compare and rank cryptocurrencies on eight fundamental metrics with True Value Rankings (TVR). Use when someone asks how a coin scores on fundamentals, wants coins compared side by side, wants coins ranked under their own priorities, wants a portfolio profiled on fundamentals, or needs TVR's dated and hashed…
Skill Claude CodeCodex
Walks a user through a CoW Protocol swap end-to-end — quote, approval, build, sign, submit, poll. Use this when the user expresses a swap intent in natural language ("swap 0.1 ETH for USDC", "sell my COW for DAI"). Coordinates the cow-mcp tools and routes the EIP-712 signing step to whatever signer the host has…
MCP server Claude CodeCodexCursor +2
Lox Corp CLI — live Robinhood Chain data, agent-launch tooling, and an MCP server, from your terminal. Runs locally from the loxcorp npm package.
Skill Claude CodeCodex
Onchain security scanner on Robinhood Chain — scan token approvals, detect honeypots, analyze contracts for rugpull indicators, check liquidity locks, and score contract safety. Use when a user asks an agent to evaluate, scan, or check a token or wallet before trading, swapping, signing an approval, or investing. 18…