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.
webberdesign/webbersites-x402-mcp
MCP server Claude CodeCodexCursor +2
45 pay-per-call AI agent tools + wallet-owned agent memory. Scraping, SEO, lint, crypto. x402 USDC. Runs locally from the webbersites-x402-mcp npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
Solana meme-coin trust scores, rug-risk flags, and wallet analytics from SolRadar. Runs locally from the @solradar/solradar-mcp npm package.
MCP server Claude CodeCodexCursor +2
Discover funded testnet tasks with deterministic on-chain acceptance and AWC utility rewards. Remote server at awc-agent-commons.wynnpay102.chatgpt.site.
MCP server Claude CodeCodexCursor +2
On-chain stablecoin market cap and Bitcoin institutional holdings data. Remote server at mcp.orbuc.io.
MCP server Claude CodeCodexCursor +2
MCP server for xete — encrypted agent-to-agent messaging on Solana. Gives any MCP-enabled agent a sovereign identity and an end-to-end-encrypted inbox. Runs locally from the xete-mcp Python package. Needs 11 environment variables to run.
MCP server Claude CodeCodexCursor +2
DoI score lookup, vouch event builder, and offline schnorr verify for AI agents. Runs locally from the @powforge/mcp-identity npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
L402 Lightning paywall + DoI score gate for MCP tools: challenge, verify, score. Runs locally from the @powforge/mcp-l402-gate npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
Dual-rail Lightning paywall for MCP servers: accepts L402 and x402 bip122/exact, one LNBits backend. Runs locally from the @powforge/mcp-pay-gate npm package. Needs 1 environment variable to run.
Skill Claude CodeCodex
Cash out Base USDC to fiat with custody-separated MCP tools. Use when a user needs live payout rails, an oracle estimate, unsigned cash-out transactions, order tracking, withdrawal, top-up, or safe recovery from an uncertain transaction outcome.
zvmzaretsky/fabtally-chain-mcp
MCP server Claude CodeCodexCursor +2
On-chain monitoring reads: ENS/Basename expiry, gas, token unlocks & Chainlink oracle health. Remote server at chain.fabtally.com.
zvmzaretsky/onchain-decode-mcp
MCP server Claude CodeCodexCursor +2
Decode EVM bytes to JSON: event-log decoder, calldata explainer, selector lookup, ABI fetch. Remote server at decode.fabtally.com.
MCP server Claude CodeCodexCursor +2
Trust verdict for an x402 payment endpoint: health, 402 handshake, price, proceed/caution/avoid. Remote server at preflight402.ironshell.io.
MCP server Claude CodeCodexCursor +2
Browse MoltJobs jobs, manage owned AI agents, review evals, and place authorized USDC bids. Remote server at api.moltjobs.io.
MCP server Claude CodeCodexCursor +2
Read-only pre-sign evidence for onchain agents: route quality, MEV exposure, clear/caution verdict. Runs locally from the @routescore/mcp npm package. Needs 2 environment variables to run.
teckel-mcp-servers/ethereum-toolkit
MCP server Claude CodeCodexCursor +2
Real-time Ethereum blockchain data (gas prices, account balances etc) on Mainnet and Sepolia. Remote server at mcp-servers.bh.tkllabs.io.
teckel-mcp-servers/ipfs-toolkit
MCP server Claude CodeCodexCursor +2
Store, retrieve, and pin encrypted files on IPFS via MCP tools for AI agents and workflows. Remote server at mcp-servers.bh.tkllabs.io.
MCP server Claude CodeCodexCursor +2
ArbitrumOracle - 12 Arbitrum tools: ERC-20, Camelot, GMX, sequencer, gas, bridge txs. Remote server at tooloracle.io.
MCP server Claude CodeCodexCursor +2
BaseOracle - 8 Base L2 tools: ERC-20, Aerodrome, bridge status, txs, gas, holders. Remote server at feedoracle.io.
MCP server Claude CodeCodexCursor +2
BNBOracle - 8 BNB Chain tools: BEP-20, PancakeSwap, validators, gas, txs, holders. Remote server at feedoracle.io.
MCP server Claude CodeCodexCursor +2
Whale & Institutional Flow MCP — 8 tools: TVL flows, alpha signals, stablecoin supply. Remote server at tooloracle.io.
MCP server Claude CodeCodexCursor +2
SolanaOracle - 12 Solana tools: SPL tokens, Jupiter, validators, rent, programs, NFTs. Remote server at tooloracle.io.
MCP server Claude CodeCodexCursor +2
TONOracle - 11 TON tools: jettons, Telegram payments, validators, smart contracts. Remote server at tooloracle.io.
MCP server Claude CodeCodexCursor +2
AML risk scoring for crypto addresses and transactions on Ethereum, BSC, TRON, TON, Bitcoin. Runs locally from the @traql/mcp npm package. Needs 3 environment variables to run.
MCP server Claude CodeCodexCursor +2
Local fit-check and safe integration guidance for non-custodial Base USDC agent transactions. Runs locally from the tollary npm package.