"Search for free open-source software" matching MCP servers:

Model Context Protocol (MCP) server providing real-time institutional Spot Bitcoin (BTC) and Ethereum (ETH) daily net flow metrics for AI agents.

An MCP server that enables fee-free USDC transfers on the Base blockchain network using Coinbase CDP MPC Wallet integration, with support for ENS and BaseName domain resolution.

Enables AI agents to inspect and measure live crypto charts, read indicator and market-structure data, add native indicators, and create editable annotations through a local MCP bridge.

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.

Enables AI agents to inspect the public NFH protocol corpus, verify census status, and prepare bounded Ethereum wallet intents for claims and non-custodial market actions while never signing or submitting transactions.

MCP server for Pi Network that enables AI agents to query Pi chain data (balances, transactions) and verify user tokens, with optional payment sending that is off by default.

Trace hidden insider wallet clusters behind Solana tokens before you ape — safety score, honeypot & LP-lock check, no signup for first 5 calls/day.

Enables users to compare current Aerodrome veNFT voting positions, bounded claimable rewards, and selected pools' voting evidence on Base against a saved local baseline, with retryable, atomically stored change reports. All tools are read-only on chain, requiring no keys, signing, or transactions.

Daily market-regime context for trading agents: is the market risk-on or risk-off? Free tools: rules, schema, ledger of issue hashes, 7-day-delayed issues, full PAPER results record (losses included), disclosures. Paid tool: today's issue via x402, 0.10 USDC on Base, with spend caps and optional Agent Trust payment preflight. No track record; not investment advice.

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

📈 提供股票、加密货币的数据查询和分析功能MCP服务器

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

Enables agents to plan token swaps, cross-chain swaps or bridges, and native gas top-ups on six EVM chains by returning unsigned transactions for user wallets to sign. It also supports tracking transfers, resolving token addresses, and obtaining gas through a signed USDC authorization.

just a simple test for education

Enables AI agents to create and manage contract-guarded USDC wallets on Base with enforceable per-payment, daily, and monthly caps, vendor allowlists, escalation thresholds, and freeze controls. It provides read-only policy checks plus unsigned transaction proposals for payments, funding, vendor management, wallet creation, and module deployment without holding keys or broadcasting.

This server provides a robust interface for Binance spot trading operations, including secure management of API credentials, execution and management of spot orders, and monitoring of account balances and open orders.

Enables an autonomous agent wallet on Base to make payments, approve tokens, swap on Uniswap V3, Aerodrome, 0x and CoW Protocol, lend/borrow via Aave V3 and Morpho Blue, trade perps on Hyperliquid, and enforce risk policies via blacklists, caps, simulation, and audit logs.

Hourly news sentiment and typed market events (hack, regulation, listing, delisting, legal) for 30 crypto pairs, with source links on every signal. Four tools cover the latest score per symbol, history, classified events and the symbol list, and a free API key works out of the box

Polymarket prediction markets for Claude — market search, order books, price history, and a liquidity-rewards scanner. Credential-free.

Open-source MCP server exposing the Agent402.Tools catalog: 500+ pay-per-call tools for AI agents, including browser rendering, web search, PDFs, OCR, LLM inference, code execution, live financial/crypto/macro data, SEC EDGAR, and wallet-keyed memory. Free via proof-of-work, or pay per call in USDC across ten chains via the x402 protocol. No API keys, no signups

Provides read-only access to public referral deals and codes, races and leaderboards, DeFi interface restriction data, x402 catalogs, cp0x facts, and open-source repository listings. Supports natural-language queries such as finding deals for a venue or checking interface restrictions by country.

Deep Research for crypto - free & fully local 🧠

A free public MCP server for Web3 data, providing live chain info, token prices, market data, wallet/token lookups, and travel search, with optional pay-per-call tools settled via x402.

An MCP server that records consented, attributed, paid-for receipts for open-source dependencies, settling per-call USDC payments on Algorand with on-chain attribution.

Enables AI agents to discover, validate, and fetch verified crypto and US-equity market data, including quality-flagged OHLCV bars, leakage-safe features, funding, open interest, order flow, context, events, and regime labels. It supports free catalog discovery and x402 USDC payments per call.

Enables users to access five astrology tools via JSON-RPC, including natal chart, sun sign, market pulse, weather, and combined celestial conditions, integrating Free Astrology API, CoinGecko, and Open-Meteo.

Free MCP server for x402toll.com, enabling AI agents to discover and use verified, pay-per-call calculators with free previews and hash verification, supporting payments via x402 protocol on Base.

DeFi analytics from DefiLlama, free and no authentication required.

An open-source, zero-dependency Model Context Protocol (MCP) server and HTTP 402 payment gateway template built for Cloudflare Workers and Node.js. This repository provides an automated store API on Solana (USDC) alongside a native MCP Server interface. It enables AI agents (Claude Desktop, Cursor, etc.) to discover, pay for, and consume paid digital assets via standardized MCP Tools.

Open-source routing layer that splits compute jobs and inference prompts across resources using Gemini, with MongoDB-backed route books and priced allocations.

MCP server that allows querying Hyperliquid open positions and unrealized PnL for any wallet address.

An open-source, zero-dependency Model Context Protocol (MCP) server and HTTP 402 payment gateway built for Cloudflare Workers and Node.js. This project enables AI agents (Claude Desktop, Cursor, etc.) to natively discover, negotiate, and autonomously pay for digital resources over Solana USDC using standardized MCP tools and standard HTTP 402 Payment Required headers.

CheapestInference — unlimited flat-rate API for frontier open-source LLMs

Enables local, API-key-free research on any crypto token by pulling live market data, exchange listings, and protocol metrics from CoinGecko and DeFiLlama alongside general web search. It builds structured, multi-source reports covering technical fundamentals, market data, and social sentiment, saving findings as referenceable resources while tracking research progress.

Free, no-auth crypto news API with 200+ sources for fetching real-time and historical crypto news.

An open-source financial data server that exposes MCP tools and HTTP endpoints for A-share, US equity, ETF, index, and crypto market data, technical indicators, fundamentals, money flow, news, and filings. It enables AI agents and backends to query multi-source market data, run analysis, and export CSV/JSON for code-execution workflows.

Enables agents to discover, read, buy, and publish knowledge using USDC on Base, with search and free essays at no cost.

AgentBureau provides the legal and physical infrastructure for AI agents to operate within the German jurisdiction. We bridge the gap between digital intelligence and real-world action by providing "Embodiment-as-a-Service." Through our API, agents can perform legally binding actions—like sending faxes, mailing physical letters, issuing invoices, forming entire companies (GmbH/UG), ...

Checks live x402 routes across Base, Solana, and Algorand before agents spend. $0.003 USDC settles only for a valid live eligible route; normal typed misses are not settled. Free preview and validate tools. Seller payment is separate; the agent keeps its wallet. Optional signed route-binding receipts support buyer-side checks.

Rug pull risk scores and on-chain forensics for memecoins on Solana, Ethereum, Base and Robinhood Chain - launch-bundle detection, funding-origin tracing, deployer history, insider networks and whale flow. 15 read-only tools.