"Understanding HTTP Requests" matching MCP connectors:

Authenticated hosted Streamable HTTP MCP server for crypto data routing through PubFi capability and gateway tools.

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.

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

39-endpoint crypto trading intelligence MCP for AI agents. Streamable HTTP over x402 pay-per-use (Base USDC). Catalog tools + agent-strategy console.

Pay for HTTP APIs and charge for your own: x402 micropayments in USDC on Base.

Emercoin swap exposes a keyless MCP exchanger at https://swap.emercoin.com/mcp (Streamable HTTP) so an AI agent holding USDT can buy EMC programmatically — no API key, no account, no callback. Tools: get_swap_config, buy_emc, get_order_status, cancel_order. Call buy_emc with an amount and your EMC address, pay the exact returned figure to the deposit address, then poll by token until delivered. Part of the broader effort to use Emercoin as an identity + memory layer for AI agents.

Hosted Streamable HTTP MCP endpoint for CoinRithm paper trading. Users authenticate with their own CoinRithm API key.

Delegare provides secure payments for AI agents. Google AP2-powered payment authorization for AI agents. Issue scoped spending mandates with hard limits, merchant controls, and no exposure of card credentials or private keys. Agents pay across dual rails: cards and ACH via Stripe, or USDC and USDT on Coinbase Base. Supports paid API access and x402-protected requests through MCP.

Policy-gated MCP treasury for AI agents. Subscribe via x402 (POST /api/mcp/onboard, USDC on Base), then call 50+ tools for wallets, allowlisted transfers, swaps, bridges, yield, cosigners, and payment requests. Every money-moving action goes through policy checks and explicit confirmation, no raw private keys. Docs: https://fortfiapp.com/agents

Agent x402 Paywall MCP — Coinbase HTTP 402 protocol + on-chain settlement. Agents pay per-call