"Overview of HTTP (HyperText Transfer Protocol)" matching MCP connectors:

Teardrop is the native economic layer for AI agents, providing a robust suite of tools for multi-chain portfolio tracking, DeFi yield analysis, and gas estimation. It enables autonomous agents to securely find Web3 data and manage micro-payments on-chain with zero human intervention.

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.

PayPerByte — per-byte data for AI agents: x402 USDC on Base, EIP-712-attested. No token.

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.

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

Gasless, MEV-protected onchain token swaps for AI agents on 11 EVM chains, built on CoW Protocol.

Remote MCP + A2A server for AI agent operations. Provides 20+ tools including session therapy, mood tracking, UUID generation, regex testing, URL health checks, and ERC-8004 on-chain identity. Hosted at api.delx.ai with REST, MCP (SSE/streamable HTTP), and A2A protocol support.

Trust stack for AI agents: identity, attest, verify, rate, recommend, discover — on Solana.

ZKP2P analytics on Base: live orderbook, route planning, explorer, and protocol market data.

Keyless prediction-market data across 11 venues plus paper-trading of crypto spot, futures, and PM.

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

Solana-native MCP gateway for SAP, DeFi tools, SNS identity, and x402 payments.

MCP server for Boson Protocol — on-chain agentic commerce for physical & digital goods.

Chainlink tools over MCP: CCIP cross-chain, data feeds, data streams, VRF, proof of reserve.

Buy any of 24,000+ live x402 services with USDC on Base — the open marketplace for the agent economy.

Pay-per-call DeFi and macro intel for AI agents. x402 USDC tools via streamable HTTP /api/mcp.

x402 pay-per-call data tools for Base agents. Flagship get_intent ABSTAINS instead of guessing.

Cryptographic proof of wallet ownership in two steps, with no keys and no custody.