4,167 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
DeFi intelligence for Claude: whale tracking, alpha signals, yields, token safety. USDC on Base. Runs locally from the voltix-mcp npm package. Needs 1 environment variable to run.
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
AI agent access to Commoner's DAO — auction, governance, treasury, and discussion board on Solana. Runs locally from the commonersdao-mcp npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
25 pay-per-request intelligence APIs for AI agents via x402 micropayments (USDC/Base). Remote server at x402-apis-eta.vercel.app.
MCP server Claude CodeCodexCursor +2
Cross-DEX price & spread for PancakeSwap v2+v3 on BSC via x402. Tool getdexspread(pair, fee?). Runs locally from the bsc-dex-spread-mcp npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
Visit The Latent Lounge: AI agents play paid puzzles & duels, paying in USDC via x402. Runs locally from the latent-lounge-mcp npm package. Needs 4 environment variables to run.
MCP server Claude CodeCodexCursor +2
Is this transaction safe to sign? Decodes what it really does and answers allow, warn or block. Runs locally from the @arbiterlabs/mcp npm package. Needs 4 environment variables to run.
MCP server Claude CodeCodexCursor +2
Crypto data MCP: 22 tools covering derivatives, forecasts, alerts, liquidations, GEX — 16 assets. Runs locally from the crypto-derivatives-mcp npm package.
higherbeing/gasfeepredictor-mcp
MCP server Claude CodeCodexCursor +2
Live Ethereum and L2 gas fees for AI agents: current gas, cheapest L2, ETH price, cost estimates. Runs locally from the gasfeepredictor-mcp npm package.
hodlxxi/Universal-Bitcoin-Identity-Layer
Skill Claude CodeCodex
Read-only-by-default integration guide for HODLXXI / UBID Bitcoin-native identity discovery, OAuth2/OIDC metadata, LNURL-Auth boundaries, JWT verification guidance, and explicit operator-approved agent handoff.
Skill Codex
Connect an agent runtime to Viridis's remote Agent Market MCP and paid x402 v2 carbon and compliance services. Use when an operator wants to discover Viridis tools or work listings, inspect a free payment challenge, buy one deterministic analysis, or participate in signed agent-to-agent work without installing a…
jmthomasofficial/x402-mcp-server
MCP server Claude CodeCodexCursor +2
One of 2 in server.json
JMT x402: 35 pay-per-call Base/USDC tools for agents, auto-paid via x402 v2. No API key. Runs locally from the @jmthomasofficial/x402-mcp-server npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Chainlink - 35 tools for price feeds and oracle data. Remote server at chainlink.mcp.junct.dev.
MCP server Claude CodeCodexCursor +2
Publish Nostr marketplace listings (NIP-15 + Shopstr kinds 30019/30402) so agents can run a store. Runs locally from the marketplace-mcp npm package. Needs 4 environment variables to run.
mastrophot/near-mcp-wallet-manager
MCP server Claude CodeCodexCursor +2
MCP server for NEAR wallet creation, balance checks, and transaction signing. Runs locally from the mcp-near-wallet-manager npm package.
MCP server Claude CodeCodexCursor +2
A buyer-side HTTP 402 runtime and agent-commerce surface inspector for x402, L402, MPP, and open-web paid actions. Runs locally from the ln-church-agent Python package.
MCP server Claude CodeCodexCursor +2
AI-powered threat intelligence, smart contract auditing, and cybersecurity OSINT. Remote server at app.eno.cx.ua.
Skill Claude CodeCodex
Create paid requests against x402 paywalled HTTP or MCP endpoints. Use when you need to generate an X-PAYMENT header, test a paywalled API, or demonstrate payment flow with Base/USDC using the x402 client.
naur9n/arbitrum-mpp-transaction-preflight
MCP server Claude CodeCodexCursor +2
Paid Arbitrum transaction simulation and risk scoring for wallets and AI agents. Runs locally from the arbitrum-mpp-transaction-preflight npm package. Needs 3 environment variables to run.
MCP server Claude CodeCodexCursor +2
MCP server for DocConv — convert PDF/Word/Excel/PowerPoint to Markdown, paid per call with USDC via the x402 protocol (Base). Runs locally from the docconv-mcp Python package. Needs 2 environment variables to run.
rex-automata/crypto-mcp-server
MCP server Claude CodeCodexCursor +2
A TypeScript MCP CLI for cryptocurrency technical analysis, supporting Binance Spot. Runs locally from the crypto-mcp-server npm package.
MCP server Claude CodeCodexCursor +2
MCP server for x402 ecosystem intelligence. Discover, evaluate, and call any x402 API service with automatic payment. Runs locally from the signal402-mcp npm package.
aurora-smith-ts58tc/armor-crypto-mcp
MCP server Claude CodeCodexCursor +2
MCP to interface with multiple blockchains, staking, DeFi, swap, bridging, wallet management, DCA, Limit Orders, Coin Lookup, Tracking and more. Runs locally from the armor-crypto-mcp Python package.
cosmos/cosmos-sdk-migration-mcp
MCP server Claude CodeCodexCursor +2
MCP server for Cosmos SDK chain migration (v50+ -> v54). Runs locally from the cosmos-migration-mcp Python package.