DeFi APIs are the plumbing behind wallets, dashboards, trading bots, and the growing wave of AI-powered agents. Four providers — CoinStats, 1inch, DefiLlama, and Footprint Analytics — are now offering specialized endpoints and Model Context Protocol (MCP) servers that let AI agents tap into real-time on-chain data without custom integration work.
CoinStats: Per-wallet DeFi resolution
CoinStats Wallet API gives developers per-wallet DeFi positions across 10,000-plus protocols, 200 exchanges, 120 blockchains, and over 100,000 coins. Its unique selling point is per-wallet resolution: one API call returns protocol-level positions mapped to individual wallets. The API also ships an MCP server, enabling AI agents to query wallet holdings, DeFi exposure, market data, and security scores natively.
1inch: AI-agent swap execution
1inch's API powers DEX aggregation through its Pathfinder algorithm, which splits trades across multiple liquidity pools for best pricing — with sub-300ms response times. In 2026, 1inch launched its own MCP, letting AI agents plan and execute swaps directly. Developers retain control over slippage, execution limits, and signing policies, making the integration suitable for automated strategies.
DefiLlama: Protocol data at scale
The DefiLlama Pro API offers protocol-level data including TVL, yields, fees, revenue, volumes, and stablecoin flows across more than 6,000 protocols and 400 chains. Data is open-source and community-maintained, often picking up new protocols within hours of a launch. The Pro tier costs $300 per month. DefiLlama's MCP supports AI agents pulling TVL trends, yield curves, and protocol metrics without building custom scrapers.
Footprint: SQL-powered blockchain analytics
Footprint Analytics takes a different angle: it provides blockchain analytics through SQL queries and dashboards across 30-plus blockchains. The service covers DeFi, NFT, and GameFi data, letting analysts and AI agents run custom queries instead of relying on predefined endpoints.
The choice among these APIs boils down to three questions: what type of data is needed, how it's delivered, and how broadly the integration must scale. With MCP servers becoming standard, AI agents can now pull wallet positions, execute swaps, and monitor protocols without writing glue code — a shift that's quietly reshaping DeFi infrastructure.
