"Creating MCP Servers Using Open Data APIs" matching MCP servers:

Enables AI agents to fetch live multi-chain portfolio, token info, gas prices, and token prices across Ethereum, Base, Polygon, Arbitrum, and Optimism with a single call. No API key required.

Monero/Zcash payment webhooks + DeFi liquidation & Ethereum builder data over MCP. Free tier; x402.

Exposes Polymarket whale trades and smart-money signals as paid tools, with USDC micropayments handled under the hood via x402.

Enables AI assistants to access AnChain.AI blockchain intelligence APIs for risk assessment, sanctions screening, and transaction analysis on blockchain addresses and transactions.

Pump.fun data fetch tool for Model Context Protocol

Made-to-order data for AI agents via x402 micropayments on Base. Describe a need in plain language, get a custom quote, pay per call. No signup, no API keys. HTTP + MCP transports. 5 tools.

MCP server for Crypto APIs Block Data product. Get block details by height or hash for EVM, UTXO, and XRP blockchains.

Premium research articles for AI agents with x402 payment on Base network.

Enables querying public Bitcoin network data including fees, mempool status, hashrate, transactions, address stats, and Lightning network information without requiring API keys.

Provides live multi-chain DEX market data as MCP tools, including token prices, liquidity depth, best execution venue, slippage, and liquidity risk across BNB Chain, Polygon, Arbitrum, Base, and Avalanche. It offers a free tier with daily allowances and falls back to x402 micropayments.

Provides secure, audited MCP servers for Kadena blockchain interactions, including Pact smart contract operations, Chainweb API, module deployment, and security scanning.

An official Model Context Protocol (MCP) server that provides AI agents with native, real-time access to high-value developer datasets. Currently supports SaaS/AI pricing comparisons, trending developer discussions (V2EX), and real-time Base/Arbitrum gas rates. Free Open Beta is active.

Integrates multiple XRPL data sources including LOS, Validator History Service, XRPL JSON-RPC, and XRPLMeta to provide comprehensive querying of XRPL network data, accounts, transactions, tokens, validators, and more via MCP tools.

A fully autonomous patent data marketplace for AI agents, providing highly structured JSON datasets with strategic insights. Supports instant M2M transactions via ROSE on the Oasis Network.

Pay-per-call MCP server for on-chain blockchain data including wallet profiles, token metrics, protocol TVL, and gas prices.

Zero-human Web3 micropayment MCP agent for LLM-ready clean web scraping, YouTube transcripts, PDF paper extraction, and plain text on Polygon Mainnet.

TON Data MCP Server — real-time blockchain data for AI agents. Provides wallet balances, token prices, STON.fi liquidity pools, market overview, transactions, and network state. 6 MCP tools, free tier, Docker-ready.

An MCP server that powers AI agents with indexed blockchain data from The Graph.

A collection of Bitcoin SV tools for the Model Context Protocol that enables AI assistants to interact with the BSV blockchain through wallet operations, ordinals (NFTs), and various blockchain utilities.

Provides enriched blockchain data from Codex for use with MCP-compatible clients like Claude Desktop.