Curated list of crypto, Web3, DeFi, wallet, and blockchain MCP servers for AI agents.

Binance Web3 agent wallet CLI and skill for wallet sign-in, balances, transfers, DEX swaps, market and limit orders, approvals, prediction markets, and x402 payments.

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Unified agent-economy SDK for autonomous AI agents — chain-opaque AiFinPayAgent surface (call/openSession/balance/verify) over Polygon and Solana execution environments.

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Multi-chain portfolio tracking with token balances, NFT holdings, and DeFi positions.

Universal browser wallet automation for AI agents. Supports 10 wallets including MetaMask, Rabby, Phantom, Trust Wallet, OKX, Coinbase, and more. EVM + Solana. Configurable guardrails with spend limits, chain allowlists, and approval thresholds.

Create and manage agentic wallets with Privy. Use for autonomous onchain transactions, wallet creation, policy management, and transaction execution on Ethereum, Solana, and other chains. Triggers on requests involving crypto wallets for AI agents, server-side wallet operations, or autonomous transaction execution.

Blockchain RPC and data access via Quicknode. Use when an agent needs to read onchain data (balances, token prices, transaction status, gas estimates, block data) across Base, Ethereum, Polygon, Solana, or Unichain. Supports both API key access and x402 wallet-based pay-per-request access with no account needed. Triggers on mentions of RPC, blockchain data, onchain queries, token balances, gas estimation, block number, transaction receipt, Quicknode, or x402.

Helixa — Onchain identity, reputation, and Cred Scores for AI agents on Base. Use when an agent wants to mint an identity NFT, check its Cred Score, verify social accounts, update traits/narrative, query agent reputation data, check staking info, or search the agent directory. Supports SIWA (Sign-In With Agent) auth and x402 micropayments. Also use when asked about Helixa, AgentDNA, ERC-8004, Cred Scores, $CRED token, or agent identity.

Free tier autonomous trading agent powered by Llama 4 Scout for Solana: wallet tracking, copy trading, price alerts, and DeFi execution.

Autonomous trading agent on Solana with wallet tracking, copy trading, price alerts, and DeFi execution.

GoldRush x402 — pay-per-request blockchain data access using the x402 protocol (HTTP 402 Payment Required). Use this skill whenever the user is building an AI agent that needs blockchain data without API keys, wants wallet-based micropayments for on-chain data, needs autonomous or no-account access to the GoldRush API, mentions the x402 protocol, or wants no-signup/no-onboarding blockchain data access. This is the right skill for autonomous agents, serverless applications, and prototyping without onboarding. Provides access to 60+ Foundational API endpoints through a transparent reverse proxy with stablecoin payments on Base. If the user needs a traditional API key with monthly billing, use goldrush-foundational-api instead. If the user needs real-time streaming data via WebSocket, use goldrush-streaming-api instead.

8004 Agent Skill for registering AI agents on the ERC-8004 Trustless Agents standard and authenticating them via SIWA (Sign In With Agent). Use this skill when an agent needs to: (1) create or manage an Ethereum wallet for onchain identity, (2) register on the ERC-8004 Identity Registry as an NFT-based agent identity (SIGN UP), (3) authenticate with a server by proving ownership of an ERC-8004 identity using a signed challenge (SIGN IN / SIWA), (4) build or update an ERC-8004 registration file (metadata JSON with endpoints, trust models, services), (5) upload agent metadata to IPFS or base64 data URI, (6) look up or verify an agent's onchain registration. The agent persists public identity state in MEMORY.md. Private keys are held in a separate keyring proxy server — the agent can request signatures but never access the key itself. Triggers on: ERC-8004, trustless agents, agent registration, SIWA, Sign In With Agent, agent identity NFT, Agent0 SDK, agent wallet, agent keystore, keyring proxy.

Onchain AI assistant for OpenClaw workflows, wallet actions, and agent automation on Abstract blockchain.

Use when an agent needs live DeFi data from Base — ETH prices, trending pools, token scores, or wallet scans. No auth required.

BNB Chain MCP server connection and tool usage. Covers npx @bnb-chain/mcp@latest, PRIVATE_KEY and RPC, and every MCP tool — blocks, transactions, contracts, ERC20/NFT transfers, wallet, ERC-8004 agent registration, Greenfield. Use when connecting to bnbchain-mcp, querying or transacting on BNB Chain/opBNB/EVM, registering as ERC-8004 agent, or using Greenfield.

Thryx MCP server monorepo — 4 packages on npm. Smart contract scanning, multi-wallet treasury, DeFi orchestration, and gas paymaster integration for AI agents on Base.

Claude Code & AI agent skills for on-chain crypto data APIs — Dune, Solscan Pro, Nansen, Solana RPC (Helius/QuickNode). Credit-aware, batch-optimized, cross-agent via AGENTS.md.

Crypto tool directory — discover, install, and share MCP, CLI, SDK, API, x402, RWA, and AI agent tools — all in one place.