1,330 mods tagged Web3 and blockchain that install into OpenCode, 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
Crypto data MCP: 22 tools covering derivatives, forecasts, alerts, liquidations, GEX — 16 assets. Runs locally from the crypto-derivatives-mcp npm package.
higherbeing/gasfeepredictor-mcp
MCP server Claude CodeCodexCursor +2
Live Ethereum and L2 gas fees for AI agents: current gas, cheapest L2, ETH price, cost estimates. Runs locally from the gasfeepredictor-mcp npm package.
jmthomasofficial/x402-mcp-server
MCP server Claude CodeCodexCursor +2
One of 2 in server.json
JMT x402: 35 pay-per-call Base/USDC tools for agents, auto-paid via x402 v2. No API key. Runs locally from the @jmthomasofficial/x402-mcp-server npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Chainlink - 35 tools for price feeds and oracle data. Remote server at chainlink.mcp.junct.dev.
MCP server Claude CodeCodexCursor +2
Publish Nostr marketplace listings (NIP-15 + Shopstr kinds 30019/30402) so agents can run a store. Runs locally from the marketplace-mcp npm package. Needs 4 environment variables to run.
mastrophot/near-mcp-wallet-manager
MCP server Claude CodeCodexCursor +2
MCP server for NEAR wallet creation, balance checks, and transaction signing. Runs locally from the mcp-near-wallet-manager npm package.
MCP server Claude CodeCodexCursor +2
A buyer-side HTTP 402 runtime and agent-commerce surface inspector for x402, L402, MPP, and open-web paid actions. Runs locally from the ln-church-agent Python package.
MCP server Claude CodeCodexCursor +2
AI-powered threat intelligence, smart contract auditing, and cybersecurity OSINT. Remote server at app.eno.cx.ua.
naur9n/arbitrum-mpp-transaction-preflight
MCP server Claude CodeCodexCursor +2
Paid Arbitrum transaction simulation and risk scoring for wallets and AI agents. Runs locally from the arbitrum-mpp-transaction-preflight npm package. Needs 3 environment variables to run.
MCP server Claude CodeCodexCursor +2
MCP server for DocConv — convert PDF/Word/Excel/PowerPoint to Markdown, paid per call with USDC via the x402 protocol (Base). Runs locally from the docconv-mcp Python package. Needs 2 environment variables to run.
rex-automata/crypto-mcp-server
MCP server Claude CodeCodexCursor +2
A TypeScript MCP CLI for cryptocurrency technical analysis, supporting Binance Spot. Runs locally from the crypto-mcp-server npm package.
MCP server Claude CodeCodexCursor +2
MCP server for x402 ecosystem intelligence. Discover, evaluate, and call any x402 API service with automatic payment. Runs locally from the signal402-mcp npm package.
aurora-smith-ts58tc/armor-crypto-mcp
MCP server Claude CodeCodexCursor +2
MCP to interface with multiple blockchains, staking, DeFi, swap, bridging, wallet management, DCA, Limit Orders, Coin Lookup, Tracking and more. Runs locally from the armor-crypto-mcp Python package.
cosmos/cosmos-sdk-migration-mcp
MCP server Claude CodeCodexCursor +2
MCP server for Cosmos SDK chain migration (v50+ -> v54). Runs locally from the cosmos-migration-mcp Python package.
0xEtherial/x402-onchain-mcp-server
MCP server Claude CodeCodexCursor +2
MCP server "x402-onchain" as configured in 0xEtherial/x402-onchain-mcp-server. Runs locally from the @0xetherial/x402-onchain-mcp-server npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
MCP server "nyra-crypto-mcp" as configured in nyrarolon/nyra-crypto-mcp. Runs locally from the nyra-crypto-mcp npm package.
MCP server Claude CodeCodexCursor +2
An MCP server that provides Ethereum blockchain data tools via Etherscan's API. Runs locally from the mcp-etherscan-server npm package.
MCP server Claude CodeCodexCursor +2
This tool provides functionality to interact with blockchain data, specifically to retrieve the total supply of a token on a given chain, retrieve the chain ID for a given chain name, and retrieve a filtered list of RPC endpoints for a given chain ID. Runs locally from the etherscan-mcp npm package.
MCP server Claude CodeCodexCursor +2
A comprehensive MCP server for interacting with the Osmosis blockchain - 158 tools covering DeFi, staking, governance, and more. Runs locally from the @myronkoch/osmosis-mcp-server npm package.
Jake-loranger/algorand-mcp-server
MCP server Claude CodeCodexCursor +2
MCP server "algorand-mcp-server" as configured in Jake-loranger/algorand-mcp-server. Runs locally from the algorand-mcp-server npm package.
WuodOdhis/arbitrum-bridge-mcp-server
MCP server Claude CodeCodexCursor +2
MCP server "arbitrum-bridge-mcp-server" as configured in WuodOdhis/arbitrum-bridge-mcp-server. Runs locally from the arbitrum-bridge-mcp-server npm package.
infinity-smithpl/dexpaprika-mcp
MCP server Claude CodeCodexCursor +2
A Model Context Protocol server for DexPaprika cryptocurrency data with network-specific pool queries. Runs locally from the dexpaprika-mcp npm package.
CodaLabs-xyz/Template-x402-Mcp
MCP server Claude CodeCodexCursor +2
MCP server "x402-mcp-template" as configured in CodaLabs-xyz/Template-x402-Mcp. Runs locally from the x402-mcp-template npm package.
MCP server Claude CodeCodexCursor +2
MCP server "zerion-mcp-server" as configured in SAK1337/myzerionmcp. Runs locally from the zerion-mcp-server Python package.