4,164 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
Pay any Algorand x402 invoice with any asset, plus DEX swap quotes and unsigned builds. Runs locally from the hogswap-mcp npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
Explain Algorand transactions, groups, batches, and account activity with x402. Runs locally from the tx402-mcp npm package.
MCP server Claude CodeCodexCursor +2
x402 analytics: the live x402 market feed for agents — a free x402marketpulse tool with ecosystem listings by category, new services, and npm trends, refreshed 3x/day — plus 22 pay-per-call data and analytics tools (USDC on Base via x402, no API keys). Runs locally from the x402-gateway-mcp npm package. Needs 4…
MikeAshtonEILLC/usdi-mcp-server
MCP server Claude CodeCodexCursor +2
Live tools for USDi: CPI-indexed exchange rate, contract/pool addresses, and mint/redeem mechanics. Remote server at usdi-mcp.onrender.com.
MCP server Claude CodeCodexCursor +2
Query Mina Protocol: accounts, blocks, transactions, zkApp events/actions, archive SQL, Rosetta. Runs locally from the @o1-labs/mina-mcp-server npm package.
MCP server Claude CodeCodexCursor +2
Agent-first prediction markets on Base. Trade, quote, create markets via MCP. Runs locally from the @flipcoin/mcp-server npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Verify x402 payment endpoints before an AI agent pays: scam scan, on-chain checks, trust scores. Runs locally from the pulsefeed-x402-mcp npm package.
MCP server Claude CodeCodexCursor +2
Query Canton Network balances, rewards, transactions, prices, and identity from any AI agent. Runs locally from the @noves/canton-mcp npm package. Needs 1 environment variable to run.
Pact-Community-Organization/pact-mcp
MCP server Claude CodeCodexCursor +2
One of 2 in .mcp.json
MCP server "chainweb" as configured in Pact-Community-Organization/pact-mcp. Runs ./packages/mcp-chainweb/dist/bin.js with node. Needs 5 environment variables to run.
Skill Claude CodeCodex
Same abilities as graphops/subgraph-mcp with better discovery. Search 15,337+ classified subgraphs; real 30-day query volume on every hit; opt-in schema and execute under the official tool names. Discovery tools never auto-query.
MCP server Claude CodeCodexCursor +2
ERC-20 token launchpad on Ethereum — deploy, presale, swap, and farm via AI agents. Runs locally from the @ponzu_app/mcp npm package. Needs 3 environment variables to run.
Schoasch/skill-backtesting-arena
Skill Claude CodeCodex
Description: Battle-tested market intelligence — programmatic access to crypto market cycle scoring, on-chain indicators, and aggregated sentiment data. Every claim backtested, versioned, and explainable; evidence and base rates, never financial advice. Built for AI agents and LLMs that need structured, reproducible…
MCP server Claude CodeCodexCursor +2
Non-custodial payment engine for AI agents — BTC, ETH, USDT, USDC, XRP, XMR, ZEC. Runs locally from the @shieldcubed/agentic-pay npm package. Needs 5 environment variables to run.
MCP server Claude CodeCodexCursor +2
Keyless non-custodial crypto payments for AI agents: payment links and tip jars, no API key. Runs locally from the @shieldz/mcp npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Crypto market intelligence MCP — pay-per-tool-call in USDC on Base via the x402 protocol. Runs locally from the kerdos-x402-mcp npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
MCP server for Boltwork - AI services via Bitcoin Lightning. Runs locally from the boltwork-mcp Python package. Needs 3 environment variables to run.
SynapseNetworkAI/Synapse-Network-MCP-Server
Skill Claude CodeCodex
Use this skill when a user wants an AI agent to discover paid APIs, invoke services through SynapseNetwork, pay with USDC micropayments, or retrieve receipts using the Synapse Network MCP Server.
MCP server Claude CodeCodexCursor +2
Query Obyte mainnet and testnet: balances, units, autonomous agents, AA state, dry runs, tokens. Runs locally from the obyte-mcp npm package. Needs 4 environment variables to run.
This-Is-Hellgate/secondeye-mcp
MCP server Claude CodeCodexCursor +2
Agent workflow diagnostics and capability routing over MCP with x402 settlement on Base. Runs locally from the @secondeyes/mcp-unblock npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Intelligence marketplace on Solana — 86 tools, 168+ endpoints, per-call USDC. Remote server at mcp.trenchfu.com.
WirterNow/ai-agent-bank-mcp-server
MCP server Claude CodeCodexCursor +2
Financial infrastructure for AI agents: wallets, USDC transfers, lending, jobs on Polygon. Runs locally from the ai-agent-bank-mcp-server npm package.
MCP server Claude CodeCodexCursor +2
Access Aarna's DeFi yield vaults — query NAV/TVL/APY, build transactions, track portfolios. Runs locally from the @aarna-ai/mcp-server-atv npm package. Needs 1 environment variable to run.
Skill Claude CodeCodex
Free DeFi lookups (384-contract label registry, Solana program registry, full service catalog) plus optional pay-per-call x402 APIs for wallet safety, token risk / rug check scoring, transaction decode and simulate, and smart contract docs — on Ethereum, Base, and Solana. Use when an agent needs to check wallet…
MCP server Claude CodeCodexCursor +2
Buy negbit's curated, provenance-verified knowledge bundles with your own x402 wallet. Read-only. Runs locally from the negbit-mcp npm package. Needs 1 environment variable to run.
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: