"How to make crypto trades using MetaMask" matching MCP connectors:

Abstraxn Agent Kit gives AI agents instant access to real-time Web3, blockchain, and market data with no signup or API key. Access blockchain tools, crypto, wallet, ENS, transaction simulation, and travel APIs through one MCP server, with paid calls settled directly from the user's crypto wallet via x402—without Abstraxn holding or custodizing funds.

Open AI Visibility Index for crypto and Web3. Weekly share-of-answer measurements for 24 tracked brands across ChatGPT, Perplexity and Gemini, from a frozen versioned prompt panel. Five read-only tools: full index, per-brand lookup, brand list, complete measurement history and methodology. No auth, no API key. Data is CC BY 4.0 with a permanent archive of every weekly snapshot, so any figure can be verified independently.

Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.

Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.

Solana MCP for wallets, trades, markets, PnL, transfers, onchain data, signable swaps and API tools.

Solana launch intelligence: calibrated rug verdicts with a published hit rate, wallets, KOL trades.

Nine-chain onchain intelligence for AI agents. The verifiable proof stream is free. Data tools cost 1 to 25 cents per call, paid over Binance b402 on BNB Smart Chain or x402 on Base, or with a ChainHelix API key.

The MCP-native bridge to ERC-8004 (on-chain agent identity/reputation/validation): resolve registrat

Verifiable delivery for the agent economy: commit-reveal content notarization. Sellers commit to a d

Decode EVM bytes to JSON: event-log decoder, calldata explainer, selector lookup, ABI fetch.

Crypto intelligence MCP for market data, DeFi, wallets, security, DEX, NFTs, and Solana.

Read-only crypto safety: token honeypot checks, EIP-712 signature decode, approval scans.

Pay-per-call crypto market intelligence for AI agents. USDC on Base via x402.

44 MCP tools to search, value, register, trade, and manage ENS names. AI-powered intelligence layer.

Non-custodial, rug-gated crypto swaps + token safety + discovery for AI agents.

x402 paid APIs for AI agents on Base. Blockchain, wallet, DEX, crypto, web search.

Stamp any data to the Markovian chain for a verifiable provenance receipt. Proves timing, not truth.

Rubin: self-custody DEX for crypto perpetuals & spot - trade, read positions, orders, balances.

Non-custodial cross-chain crypto swap MCP — 1288+ assets, no KYC. Solana/EVM/Monero, RPC, oracle.

An identity and memory layer for AI agents on the Emercoin blockchain. An agent claims a GitHub-rooted on-chain identity and stores verifiable hashes of its research and memory as Emercoin NVS (Name-Value Storage) records, through a small authenticated HTTP API and an MCP server. Neutral and provider-independent — not tied to any single AI vendor. FREE