"General information about the web" matching MCP connectors:

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

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

Self-authenticating booking-request receipt anchored to the Knox chain; never represents a person.

Check who your agent is about to pay over x402: real service, relayer, treasury, or buyer.

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

Real-time on-chain coordinated wallet detection for Solana tokens. Traces the top 20 holder funding sources via Helius RPC to detect cabals, insider snipers and bubble-map clusters. Returns a cabal confidence score 0–100. $0.05 USDC per query, paid natively on Solana. No API key, no account, no subscription.

Buy, sell & extend TRON ENERGY/BANDWIDTH on the TronSave market via typed MCP tools.

The Graph MCP — indexed blockchain data via subgraph GraphQL queries

web3d-mcp is an MCP server for AI-powered 3D scene and ad generation on the web. It provides tools to generate, edit, animate, preview, validate, and export 3D scenes built with React Three Fiber (R3F). Designed for web developers and creative teams, it enables programmatic creation of production-ready interactive 3D web experiences and advertisements through natural language.

The OpenZeppelin Stellar Contracts MCP server generates secure smart contracts for the Stellar blockchain based on OpenZeppelin templates. It integrates with AI assistants to automatically enforce OpenZeppelin's security best practices, style rules, and standards at every prompt, enabling developers to create production-ready Fungible Token, Non-Fungible Token, and Stablecoin contracts through AI-driven workflows.

Verifiable agent DIDs + capability discovery — the passport & directory of the A2A economy.

Formo makes analytics and attribution easy for crypto apps, so you can focus on growth. Measure what matters and drive growth onchain with the data platform for onchain apps. Get the best of web, product, and onchain analytics on one versatile platform.

Query real-time blockchain token data across EVM and Solana networks. Access token balances, transfers, prices, holders, NFT ownership, DEX swaps, and liquidity pools. Supports Ethereum, Base, Arbitrum, BSC, Polygon, Solana, and more.

Discover and price paid agent services across the live x402 network, by three.ws.

Open API Marketplace for AI Agents. Crypto data tools with USDC payments on Base.

MCP server bridging holepunchto/keet-identity-key to the Hive agentic identity network

Claude-ready DeFi MCP — risk-scored yields, profit sims & whale tracking across 86 blockchains

TPermanent memory layer for AI agents. Mint moments to the Polygon blockchain via MCP.