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.
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 keyless public market: ticker, orderbook, transactions, OHLC, trading pairs. Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
Blockchair multi-chain block explorer (BTC, ETH, LTC, DOGE, XMR, +12 more). 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 Esplora Bitcoin block explorer (mainnet + testnet). Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
Chainlist MCP — registry of EVM chains. Remote server at gateway.pipeworx.io.
pipeworx-io/mcp-coinbase-exchange
MCP server Claude CodeCodexCursor +2
Coinbase Exchange public MCP. Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
CoinGecko MCP — wraps CoinGecko free API (no auth required). Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
Crypto MCP — cryptocurrency prices and currency conversion. Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
CryptoCompare prices, OHLC history, social stats, news, exchanges. Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
Coinpaprika MCP — alternative crypto data source. Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
DefiLlama MCP — DeFi analytics from DefiLlama (free, no auth). Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
Gemini Exchange keyless public market: symbols, ticker, candles, book, trades, price feed. Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
ENS (Ethereum Name Service) MCP. Remote server at gateway.pipeworx.io.
MCP server Claude CodeCodexCursor +2
Etherscan MCP — multichain block-explorer API (Etherscan V2). Remote server at gateway.pipeworx.io.