blockchain mcp servers

MystenLabs/sui

MCP server Claude CodeCodexCursor +2

Semantic search across Sui documentation and knowledge sources, powered by kapa.ai. Remote server at sui.mcp.kapa.ai.

nirholas/three.ws

MCP server Claude CodeCodexCursor +2

3D AI Agent Avatar — render any GLB, give it a Solana wallet, a voice, and pump.fun powers. Runs locally from the @three-ws/avatar-agent npm package. Needs 11 environment variables to run.

nirholas/three.ws

MCP server Claude CodeCodexCursor +2

IBM watsonx.ai MCP by three.ws: chat, text generation, embeddings, and tokenization. Runs locally from the @three-ws/ibm-watsonx-mcp npm package. Needs 7 environment variables to run.

nirholas/three.ws

MCP server Claude CodeCodexCursor +2

Pay any x402 endpoint on the open web: auto-paying bridge with Bazaar discovery and spend caps. Runs locally from the @three-ws/mcp-bridge npm package. Needs 13 environment variables to run.

nirholas/UCAI

MCP server Claude CodeCodexCursor +2

UCAI — The ABI-to-MCP Server Generator. Convert smart contract ABIs to AI-ready MCP servers. Runs locally from the abi-to-mcp Python package. Needs 3 environment variables to run.

nirholas/defi-agents

MCP server Claude CodeCodexCursor +2

General Agent Index and library of specialized AI agents for general use, DeFi, portfolio management, yield optimization, trading, and blockchain automation. Supports linting, automated translation, and CI auto-build for seamless plugin discovery via inde. Runs locally from the @nirholas/ai-agents-library npm package.

klever-io/mcp-klever-vm

MCP server Claude CodeCodexCursor +2

MCP server for Klever blockchain smart contract development. Runs locally from the @klever/mcp-server npm package.

tonnode/mcp

MCP server Claude CodeCodexCursor +2

Liteserver access to TON: balances, account state, transactions and get-methods over native ADNL. Runs locally from the @tonnode/mcp npm package. Needs 2 environment variables to run.

waiaas/WAIaaS

MCP server Claude CodeCodexCursor +2

WAIaaS MCP server - Model Context Protocol integration for AI agents. Runs locally from the @waiaas/mcp npm package. Needs 2 environment variables to run.

nirholas/ethereum-wallet-toolkit

MCP server Claude CodeCodexCursor +2

MCP Server for Ethereum transaction building, signing, and serialization. Runs locally from the transaction-mcp-server Python package.

nirholas/ethereum-wallet-toolkit

MCP server Claude CodeCodexCursor +2

MCP server for Ethereum wallet generation and HD wallet operations. Runs locally from the ethereum-wallet-mcp Python package.

nirholas/ethereum-wallet-toolkit

MCP server Claude CodeCodexCursor +2

MCP server for Ethereum keystore encryption, decryption, and management. Runs locally from the keystore-mcp-server Python package.

hive-intel/hive-sdk

MCP server Claude CodeCodexCursor +2

MCP server "hive", hosted remotely at mcp.hiveintelligence.xyz, as configured in hive-intel/hive-sdk.

VibeTensor/attestix

MCP server Claude CodeCodexCursor +2

Attestix - Attestation Infrastructure for AI Agents. DID-based agent identity, W3C Verifiable Credentials, EU AI Act compliance, delegation chains, and reputation scoring. 47 MCP tools across 9 modules. Runs locally from the attestix Python package.

aibtcdev/aibtc-mcp-server

MCP server Claude CodeCodexCursor +2

Bitcoin-native MCP server for AI agents: BTC/STX wallets, DeFi yield, sBTC peg, NFTs, x402 payments. Runs locally from the @aibtc/mcp-server npm package.

Calhooon/bsv-wallet-cli

MCP server Claude CodeCodexCursor +2

MCP server "bsv-wallet" as configured in Calhooon/bsv-wallet-cli. Launched with cargo run --release --manifest-path mcp/Cargo.toml. Needs 1 environment variable to run.

Kalapaja/Kalatori

MCP server Claude CodeCodexCursor +2

Lets the agent read, search and manipulate local git repositories: log, diff, status, commit. Runs locally from the mcp-server-git Python package.

Kalapaja/Kalatori

MCP server Claude CodeCodexCursor +2

Lets the agent drive a real browser: open pages, click, type, take screenshots and read the accessibility tree, using Playwright. Runs locally from the @playwright/mcp npm package.

Kalapaja/Kalatori

MCP server Claude CodeCodexCursor +2

Adds a structured step-by-step reasoning tool the agent can call to break a problem into revisable thoughts. Runs locally from the @modelcontextprotocol/server-sequential-thinking npm package.

emercoin/emer-ai-tools

MCP server Claude CodeCodexCursor +2

MCP server "emercoin-agent" as configured in emercoin/emer-ai-tools. Runs in Docker (docker.io/emercoin/mcp:0.1.0). Needs 1 environment variable to run.

Apex-Foundation/copilot-mcp

MCP server Claude CodeCodexCursor +2

Apex Copilot — MCP server for Apex Foundation portfolio diligence and operator tools. Runs locally from the @apexfdn/copilot-mcp npm package. Needs 2 environment variables to run.

Apex-Foundation/copilot-mcp

MCP server Claude CodeCodexCursor +2

Web3 founder diligence: code audit, jurisdiction, fund matching, portfolio, scoring. Runs locally from the @apexfdn/copilot-mcp npm package. Needs 2 environment variables to run.

seashail/seashail

MCP server Claude CodeCodexCursor +2

MCP server "seashail" as configured in seashail/seashail. Launched with seashail mcp.

nirholas/robinhood-mcp

MCP server Claude CodeCodexCursor +2

Robinhood Crypto Trading API for AI agents: quotes, holdings, orders read-only; opt-in trading. Runs locally from the robinhood-mcp npm package. Needs 4 environment variables to run.