"A development environment for creating apps on Apple's platforms" matching MCP connectors:

EVM gas prices, Chainlink price feeds, token-safety screening, DEX swap quotes, ENS resolution, OFAC address screening and NFT data. Pay-per-call in USDC on Base via x402 — no signup, no API keys.

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.

See what actually settles on x402: wash-adjusted volume, payTo checks. Free, no key, no signup.

Search, buy, and manage domains, DNS records, orders, and NFSC balance on Namefi.

MCP server for Fuse Network: balances, tokens, staking, DeFi data, swaps and on-chain transactions.

Live, neutral benchmarks for public RPC latency, oracles, bridges, perp DEX, and prediction markets.

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.

Gasless, MEV-protected onchain token swaps for AI agents on 14 EVM chains, built on CoW Protocol.

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.

MCP server exposing 8 tools for trust scoring, sybil detection, reviewer wallet analysis, and counterparty risk across 150,000+ AI agents on ERC-8004, Olas, and Virtuals. Streamable HTTP, JSON-RPC 2.0, no API key required.

S3 storage and Solana/Base/Ethereum health checks for AI agents, paid per call via x402.

Live operational + integration registry for Bittensor subnets: APIs, schemas, health.

Abstraxn: public Web3 MCP server for read-only chain data and pay-per-call relays.

Pay-per-call security verification for wallets, contracts, agents and apps, in USDC over x402.

Zero-install remote MCP server for proof-of-existence file attestation.

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

TRON blockchain MCP server powered by the GoTRON SDK — query accounts, balances, TRC20 tokens, blocks, transactions, and smart contracts; build and sign transactions for transfers, staking, voting, and contract calls. Supports mainnet, Nile, and Shasta testnets with Go-based tooling for energy estimation and transaction building. Available via stdio or hosted Streamable HTTP

Ask what you can't be sure of. Read-only checks on tokens, NFTs, wallets and contracts.

EVM gas, Chainlink prices, token-safety, swap quotes, ENS, OFAC & NFT via x402.

Browse, verify and buy Twelve Permissions NFTs on XRP Ledger. Every claim is checkable.