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
One of 2 in server.json
Pay x402 APIs in USDC on Base, Solana, and BNB Chain with spend mandates, receipts, idempotency. Runs locally from the @arispay/payagent-mcp npm package. Needs 2 environment variables to run.
stillmarcus24/stillos-swap-mcp
MCP server Claude CodeCodexCursor +2
Non-custodial Solana swap via Jupiter, 0.25% fee, free scam-check on every token you buy. Runs locally from the stillos-swap-mcp npm package.
lightphon/BTC-LND-NWC-MCP-server
MCP server Claude CodeCodexCursor +2
MCP server "btc-mcp-srv" as configured in lightphon/BTC-LND-NWC-MCP-server. Runs locally from the btc-mcp-srv npm package.
tradewr333-lgtm/agent-exchange-protocol
MCP server Claude CodeCodexCursor +2
Trust scores, opportunity feed, contracts and a paid crypto Decision API for AI agents. Runs locally from the axp-mcp-server npm package. Needs 2 environment variables to run.
observer-protocol/at-directory
Skill Claude CodeCodex
Discover OP-verified merchants accepting Lightning, BOLT12, L402, or USDT, and complete payment handoff. Use when an agent needs to find a merchant on Bitcoin/Tether rails or check a merchant's payment endpoint before transacting.
MCP server Claude CodeCodexCursor +2
One of 2 in server.json
The bolthub API marketplace, L402 gateways, and your other MCP servers, on one Lightning budget. Runs locally from the @bolthub/mcp npm package. Needs 9 environment variables to run.
MCP server Claude CodeCodexCursor +2
Measured share of answer for 20 SaaS brands. An open dataset, not an audit of your site. Remote server at dabyte.ai.
MCP server Claude CodeCodexCursor +2
44 MCP tools to search, value, register, trade, and manage ENS names. AI-powered intelligence layer. Remote server at namewhisper.ai.
MCP server Claude CodeCodexCursor +2
The only x402 MCP server for Robinhood Chain (chainId 4663) - 147 onchain, trading & AI tools. Remote server at x402-services-production.up.railway.app.
Skill Codex
Discover, inspect, and run exact crypto-data capabilities through the PubFi MCP plugin. Use when a user asks for current crypto data from PubFi or wants to inspect a PubFi capability. Do not use for trades, transfers, wallet or payment operations, Credit purchases, or x402.
MCP server Claude CodeCodexCursor +2
Agent-commerce MCP server for x402/USDC payments and affiliate splits on Base. Remote server at pyrimid.ai.
MCP server Claude CodeCodexCursor +2
One of 2 in
Connect to the COTI blockchain to manage accounts, transfer native tokens, and deploy and operate… Remote server at server.smithery.ai.
vdappdev2/vtimestamp-mcp-write
MCP server Claude CodeCodexCursor +2
MCP server for creating vtimestamp proofs on the Verus blockchain via a local or remote daemon. Runs locally from the vtimestamp-mcp-write npm package. Needs 4 environment variables to run.
MCP server Claude CodeCodexCursor +2
63 pay-per-call tools for agents: vision, text, data, web, blockchain. USDC on Base via x402. Runs locally from the blixtworks-mcp npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Cleared Check before pay: lookupmerchant, clearedcheck, routegateway for x402 agents. Runs locally from the @n747ai/clearedindex-mcp-server npm package.
MCP server Claude CodeCodexCursor +2
Leading non-price Bitcoin signals over MCP: sovereign, hiring, hashrate. Not financial advice. Remote server at coinbucha.com.
MCP server Claude CodeCodexCursor +2
One of 2 in server.json
MCP server exposing 63 Coin Railz x402 micropayment services — crypto analytics, trading signals, NASA/ESA satellite data, IoT sensors, AI inference, and prediction markets. Runs locally from the coinrailz-mcp Python package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
One of 2 in server.json
Read-only on-chain intel for AI agents on Base: balances, tokens, gas, tx status. No API keys. Remote server at base.datakoot.com.
EruditeIntelligence/blockchain-intelligence-mcp
MCP server Claude CodeCodexCursor +2
168 MCP tools: token prices, whale tracking, DeFi, wallets across Base/Tron/BTC/XRP/Kaspa. Remote server at bridge.eruditepay.com.
MCP server Claude CodeCodexCursor +2
Read-only crypto safety: token honeypot checks, EIP-712 signature decode, approval scans. Remote server at safe.fabtally.com.
MCP server Claude CodeCodexCursor +2
SUIOracle - 12 Sui tools: objects, modules, validators, gas, Cetus DEX, NFTs. Remote server at tooloracle.io.
MCP server Claude CodeCodexCursor +2
HederaOracle - 12 Hedera tools: HCS, HTS tokens, mirror node, consensus, governance. Remote server at tooloracle.io.
MCP server Claude CodeCodexCursor +2
DePIN network telemetry with the source, asof time and an upstream verify URL on every value. Remote server at kairossignal.com.
MCP server Claude CodeCodexCursor +2
Free OFAC SDN wallet screen + sample preview for AI agents on Base. Read-only, no payment surface. Remote server at trust.paladinfi.com.