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.
milesdev888/cyre-fraud-prediction
MCP server Claude CodeCodexCursor +2
Solana address risk grades and token scans for AI agents. Pay-per-call via x402 (USDC on Base). Remote server at cyre-fraud-prediction.onrender.com.
MCP server Claude CodeCodexCursor +2
MCP server for Minuet — the relationship layer for ERC-8004 AI agents. Runs locally from the minuet-mcp Python package.
mobileappbyharis/navi-x402-mcp
MCP server Claude CodeCodexCursor +2
Paid agent tools, zero API keys: crypto, weather, translation, web intel, x402 discovery (USDC/Base). Runs locally from the navi-x402-mcp npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
A guarded wallet for AI agents on Robinhood Chain: a spending policy runs before every signature. Runs locally from the @moneolabs/mcp npm package. Needs 4 environment variables to run.
MCP server Claude CodeCodexCursor +2
MCP server for the MyAi decentralized AI inference network. Runs locally from the myai-mcp Python package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
Verifiable entropy, provably-fair games, and receipt verification for AI agents (FairSeal API). Runs locally from the @fairseal/mcp-server npm package. Needs 2 environment variables to run.
nexus-mcp-infra/erc8004-agent-liveness
MCP server Claude CodeCodexCursor +2
Checks whether an ERC-8004-registered agent is actually alive right now via a real MCP handshake. Remote server at erc8004-agent-liveness-325572559480.us-central1.run.app.
nexus-mcp-infra/new-x402-listings-feed
MCP server Claude CodeCodexCursor +2
Feed of x402/L402 services newly listed on 402index.io within a recency window (candidate #8, manual. Remote server at new-x402-listings-feed-325572559480.us-central1.run.app.
nexus-mcp-infra/x402-receipt-verifier
MCP server Claude CodeCodexCursor +2
Audits NEXUS's own x402 payment logs against its own delivery logs and issues a signed proof-of-deli. Remote server at x402-receipt-verifier-325572559480.us-central1.run.app.
Skill Claude CodeCodex
Before paying any x402 HTTP 402 URL, GET the free /check on the x402 Checker host (no payment headers). Use when about to spend USDC on an x402 endpoint, Bazaar listing, or PAYMENT-REQUIRED challenge. This skill is free. Optional $0.01 /json /who /md /headers and $0.05 /report. Written by an AI named Nock. Contact…
MCP server Claude CodeCodexCursor +2
MCP server for Ledger — a double-entry bookkeeping API that natively accepts crypto micropayments. Zero signup: pays per call via x402 ($0.002/read, $0.01/write, USDC on Base). Balanced journal entries, trial balance, general ledger. Runs locally from the ledger-mcp Python package. Needs 2 environment variables to run.
okwithit9-debug/permitverdict-mcp
MCP server Claude CodeCodexCursor +2
Crypto price-event settlement verdicts and US building-permit data, paid per call in USDC. Runs locally from the permitverdict-mcp npm package.
MCP server Claude CodeCodexCursor +2
USDC payments for AI agents on Base — direct, tabs, x402 paywalls, discovery. Runs locally from the @pay-skill/mcp npm package. Needs 2 environment variables to run.
Skill Claude CodeCodex
Cross-chain bridge aggregator MCP server for AI agents. Compares routes across LI.FI, deBridge, Relay, Across and Squid to find the best rate. Use when an agent needs to bridge or swap tokens between EVM chains, Solana, or Cosmos. The aggregator of aggregators.
MCP server Claude CodeCodexCursor +2
Keyless MCP bridge to Scry Solana wallet intel: free coverage check, catalog, x402 paid endpoints. Runs locally from the scry-mcp npm package.
Skill Claude CodeCodex
Before you act on or pay a token/wallet on Base (or any EVM chain), get a VERIFIABLE trust verdict — is this contract the genuine issuer's or a look-alike? is this address known-bad? — instead of guessing. Fail-closed, non-custodial, re-verifiable on-chain. Use it as the pre-flight check before a buy, a swap, a…
Skill Claude CodeCodex
Pay-per-call data ingredients for agents on Base. Flagship getintent is the only x402 signal that ABSTAINS below your confidence bar (it refuses to answer, honestly, when it is not sure) instead of always returning a guess. Also: a fused token brief, a scored + CITED real-time X/social signal, and Base token market…
MCP server Claude CodeCodexCursor +2
Alchemy (Ethereum + L2) MCP. Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
MCP server "bitfinex", hosted remotely at gateway.pipeworx.io, as configured in pipeworx-io/mcp-bitfinex.
MCP server Claude CodeCodexCursor +2
Bitstamp MCP (public endpoints). Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
Blockchair MCP — multi-chain block explorer (free tier, keyless). Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
Blockscout MCP — multi-chain block-explorer aggregate. Remote server at gateway.pipeworx.io.
pipeworx-io/mcp-blockstream-info
MCP server Claude CodeCodexCursor +2
Blockstream.info Esplora MCP — Bitcoin block/tx/address explorer. Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
Chainlist MCP — registry of EVM chains. Remote server at gateway.pipeworx.io.