1,334 tagged Web3 and blockchain, measured the same way as everything else here.
Browse within: mcp-server 189model-context-protocol 188defi 132blockchain 128crypto 110base 90x402 69ethereum 55bitcoin 36LLM 35cryptocurrency 35cursor 31solana 31agent-commerce 29
Br0ski777/wallet-portfolio-x402
MCP server Claude CodeCodexCursor +2
Crypto wallet balances, ERC-20 tokens, USD values across Base and Ethereum. x402. Remote server at wallet-portfolio.api.klymax402.com.
MCP server Claude CodeCodexCursor +2
Track large on-chain whale transactions on Ethereum and Base. x402 micropayment. Remote server at whale-alert.api.klymax402.com.
MCP server Claude CodeCodexCursor +2
Markets in Crypto-Assets (MiCA) Regulation (EU) 2023/1114 compliance for EU crypto-asset issuers, exchanges, custodians, and CASPs. Runs locally from the mica-crypto-mcp Python package.
MCP server Claude CodeCodexCursor +2
MCP Server for Clawallex payment API - Pay for anything with USDC virtual cards. Runs locally from the @clawallex/mcp-server npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
PayFlowAgent suite: token intel, DeFi, enrich, Base trust (x402). Runs locally from the payflowagent-mcp npm package. Needs 6 environment variables to run.
CryptoAPIs-io/cryptoapis-mcp-block-data
MCP server Claude CodeCodexCursor +2
MCP server for retrieving block-level data from EVM, UTXO, and XRP blockchains via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-block-data npm package. Needs 1 environment variable to run.
CryptoAPIs-io/cryptoapis-mcp-blockchain-events
MCP server Claude CodeCodexCursor +2
MCP server for subscribing to and managing on-chain event webhooks via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-blockchain-events npm package. Needs 1 environment variable to run.
CryptoAPIs-io/cryptoapis-mcp-blockchain-fees
MCP server Claude CodeCodexCursor +2
MCP server for fee recommendations and gas estimation on EVM, UTXO, XRP, Tezos, Solana. Runs locally from the @cryptoapis-io/mcp-blockchain-fees npm package. Needs 1 environment variable to run.
CryptoAPIs-io/cryptoapis-mcp-broadcast
MCP server Claude CodeCodexCursor +2
MCP server for broadcasting signed raw transactions to multiple blockchains via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-broadcast npm package. Needs 1 environment variable to run.
CryptoAPIs-io/cryptoapis-mcp-contracts
MCP server Claude CodeCodexCursor +2
MCP server for smart contract ABIs and on-chain data from EVM and Solana via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-contracts npm package. Needs 1 environment variable to run.
CryptoAPIs-io/cryptoapis-mcp-market-data
MCP server Claude CodeCodexCursor +2
MCP server for cryptocurrency asset prices, exchange rates, and market metadata via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-market-data npm package. Needs 1 environment variable to run.
CryptoAPIs-io/cryptoapis-mcp-signer
MCP server Claude CodeCodexCursor +2
Local transaction signing for EVM, UTXO, Tron, XRP, Kaspa, Solana and Tezos — no API calls. Runs locally from the @cryptoapis-io/mcp-signer npm package.
CryptoAPIs-io/cryptoapis-mcp-simulate
MCP server Claude CodeCodexCursor +2
MCP server for dry-run Ethereum transaction simulation via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-simulate npm package. Needs 1 environment variable to run.
CryptoAPIs-io/cryptoapis-mcp-transactions-data
MCP server Claude CodeCodexCursor +2
MCP server for transaction lookup across EVM, UTXO, Solana, XRP, Kaspa via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-transactions-data npm package. Needs 1 environment variable to run.
CryptoAPIs-io/cryptoapis-mcp-utils
MCP server Claude CodeCodexCursor +2
MCP server for address derivation and encoding utilities across multiple blockchains via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-utils npm package. Needs 1 environment variable to run.
CryptoAPIs-io/cryptoapis-mcp-x402-accept
MCP server Claude CodeCodexCursor +2
Self-hosted MCP proxy that puts an x402 paywall in front of an existing MCP server. Runs locally from the @cryptoapis-io/mcp-x402-accept npm package.
CryptoAPIs-io/cryptoapis-mcp-x402-pay
MCP server Claude CodeCodexCursor +2
MCP server that pays x402-gated HTTP endpoints — fetch, and on a 402 authorize, sign, retry. Runs locally from the @cryptoapis-io/mcp-x402-pay npm package.
MCP server Claude CodeCodexCursor +2
Evidence-backed x402 web verification for AI agents, with auditable decisions for every condition. Remote server at mcp-x402-production.up.railway.app.
Faouzi122/Arsenal-Quant-Project
MCP server Claude CodeCodexCursor +2
Rnet LP risk evaluator for DeFAI agents. IL + Breakeven Corridor O(1). L402 Lightning paywall. Remote server at api.arsenal-quant.com.
MCP server Claude CodeCodexCursor +2
Solana token due-diligence: 3-source fused risk verdict incl. LP-lock depth. $0.01 via x402. Remote server at token-intel-x402.echolonius.deno.net.
MCP server Claude CodeCodexCursor +2
Ultra-lightweight x402 payment wrapper for AI Agents and MCP Servers. Monetize any API in 3 lines of code. Runs locally from the m2mcent-sdk npm package. Needs 3 environment variables to run.
MCP server Claude CodeCodexCursor +2
Build-only Hedera (Hashgraph) MCP — 73 tools across all core services plus analytics reads. Runs locally from the @purplesquirrel/hedera-mcp npm package. Needs 3 environment variables to run.
ExpertVagabond/universal-blockchain-mcp
MCP server Claude CodeCodexCursor +2
ZetaChain universal blockchain MCP server. Runs locally from the universal-blockchain-mcp npm package.
MCP server Claude CodeCodexCursor +2
Stablecoin payments, swaps, stock orders, market data, travel booking, yield and card controls. Runs locally from the @furlpay/cli npm package.