"How to make API calls in code" matching MCP servers:

MCP server for local transaction signing across EVM, UTXO, Tron, and XRP blockchains, with no network calls or API keys required.

Teaches AI coding agents how to reason correctly about MetaMask Embedded Wallets / Web3Auth architecture, SDK choice, key derivation, auth flows, and common integration pitfalls.

An MCP server for Klever blockchain smart contract development, providing contextual knowledge including code patterns, best practices, and runtime behavior.

MCP server for Crypto APIs Prepare Transactions product that builds unsigned EVM transactions for native coin, fungible token (ERC-20), and NFT (ERC-721) transfers.

Enables creating and managing webhook subscriptions for blockchain events such as new blocks, confirmed transactions, and token transfers across major blockchains (EVM, UTXO, Solana, XRP).

Enables interaction with CoW Protocol's order book API, allowing token resolution, quote retrieval, and order management across multiple networks through natural language.

Gives Claude access to Alchemy blockchain APIs by loading all API specs at startup and providing two tools: search and execute. Enables querying NFTs, token balances, transactions, and more via natural language.

Non-custodial crypto swaps for AI agents: Solana (Jupiter) + 7 EVM chains (KyberSwap), 1288+ assets, cross-chain routing, priority-fee oracle, Hyperliquid perps. Returns unsigned transactions — your wallet signs, no API key, no KYC. Hosted at https://swaptitan.net/mcp

Enables MCP clients to interact with over 31 blockchain chains through the MoltNode RPC gateway, providing tools for chain listing, RPC calls, block numbers, and native balance queries without API keys or setup.

Identity infrastructure for the agent economy. Mint an agent ~handle in two free calls with no human account, then verify anyone and read inferred traits under the consent the person set in advance.

Interact with the NEAR blockchain through MCP calls

An MCP server that fetches on-chain blockchain data via the Ankr API, allowing LLMs to retrieve token balances for wallet addresses on specific networks.

Enables natural language queries and JSON-RPC calls to 69+ blockchain networks through Grove's free public endpoints. Supports Ethereum, Solana, Cosmos chains, and Layer 2 solutions without requiring authentication or API keys.

Enables to simulate EVM transactions (dry-run) to preview results, gas usage, and state changes before broadcasting on supported blockchains.

Connects AI agents to 2,800+ APIs via x402 micropayments on Base, enabling automated API calls for $0.01 each without signup or API keys.

Provides access to NFTGo's Developer API for retrieving NFT collection details, asset information, market data, wallet information, and search capabilities on the Ethereum blockchain.

Enables AI agents to interact with the TRON blockchain through browser automation (Playwright) or direct API calls, supporting transfers, staking, swaps, and multi-signature management.

Enables interaction with the Bitcoin blockchain through the Maestro API platform. Provides tools for exploring blocks, transactions, addresses, mempool monitoring, market prices, wallet operations, and node RPC calls on Bitcoin mainnet and testnet4.

Enables querying NFT marketplace data from OpenSea's v2 API, including fetching individual NFTs by chain, contract, and token ID, and listing NFTs owned by an address.

A server that allows AI agents to interact with the Tally API to access DAO governance data, proposals, and metadata using Model Context Protocol (MCP), built with TypeScript and GraphQL.