"Code indexing or code search" matching MCP servers:

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.

pay-per-call x402 API endpoints as MCP tools — web search, page-to-markdown, PDF extract, JSON repair/validate, crypto price, weather, IP geo, DNS, markdown lint + 20 agent-commerce aliases. Each tool proxies to vibes-coded.com and settles via x402 (USDC/Solana). Free-trial endpoints need no auth; paid ones need an x402 signature. Catalog is fetched live, so new endpoints appear automatically.

Enables AI agents and their users to retrieve scored news sentiment, narratives, historical readings, and cited sources for Bitcoin, gold, and oil, with tamper-evident, time-stamped data for trading decisions.

Browser-automated MCP server for Coinbase crypto exchange, enabling live prices, portfolio management, transaction history, and trading.

Enables paying for Ordinal marketplace calls from your own wallet in Claude Code or Codex, with local signing and gasless settlements.

Provides AI agents with access to a wide range of market data, including short interest, insider trades, financials, and macro indicators, through 26 tools across 31 datasets.

This MCP wraps Bitrefill public API to allow agents to search for products and shop using cryptocurrencies like Bitcoin, Ethereum, Solana, and many more.

Enables Claude to query Binance Spot market data, account balances, and execute trades via natural language, with withdrawals disabled by default for security.

A comprehensive developer utility MCP server that provides 23 tools including web search, currency conversion, crypto prices, QR code generation, JSON formatting, and more.

Connect any AI agent to Arcis Protocol DeFi vaults through natural language, enabling deposit, withdrawal, and status queries without SDK or code.

MCP server enabling LLMs to interact with a Cardano node by wrapping cardano-cli/torsten-cli, supporting queries, transactions, staking, and governance operations.

Enables web search for AI agents with pay-per-search in USDC, no API keys needed.

Enables interaction with AElf blockchain nodes, allowing users to read chain status, execute contract transactions, and manage custom nodes through MCP, CLI, or SDK.

MCP server for the x402 micropayment marketplace minia2a.uk, enabling AI agents to discover, call, and pay for 1,700+ services using USDC micropayments with no API keys or subscriptions. Supports registration, credits, service browsing, and autonomous calling with Claude Code auto-mode.

Provides tools and prompts for Bitcoin SV development, enabling code search, BRC lookup, and function definition search within locally cloned BSV repositories.

Provides AI agents with knowledge and code generation tools for building BSV blockchain applications using @bsv/simple.

Enables AI agents to detect and verify the language of texts, run bundle checks, and top up prepaid credits by paying per call in USDC on Solana, with no account, API key, or subscription needed. Payment is handled transparently via x402 challenges, prepaid credit tokens, or a funded payer wallet with sponsored gas.

Pay-per-call AI microservices settled in USDC on Base via the x402 (HTTP 402) protocol. 28 tools including web search, summarization, extraction, code review, deep research, crypto safety, sanctions screening and on-chain data — no accounts or API keys.

Enables OpenClaw agents to discover and purchase official checked records directly from the live Paylyte MCP, paying from a Coinbase Wallet or CDP on Base, and receiving verified file bytes with a hash and Bitcoin stamp.

A local-first MCP server for the WAX blockchain that enables AI hosts to query accounts, chain state, AtomicAssets, AtomicMarket, Hyperion history, and WAXP prices, as well as prepare unsigned transactions for wallet signing.