Introduction

What is Bitcoin API?

Bitcoin API is a developer-centric platform that provides programmatic access to Bitcoin market and blockchain data. It aggregates live pricing from major exchanges, historical trade data, and real-time on-chain events into a unified REST and WebSocket interface. This allows developers and AI agents to integrate reliable Bitcoin data without managing complex infrastructure.

Connect Directly on the Client—No Backend Required

Why waste time setting up and hosting an intermediate backend server just to protect your credentials? With Bitcoin API, you can query market data and manage WebSocket connections directly from your client-side code safely.

IP-Based Abuse Protection

Set a maximum requests-per-minute limit from a single IP address on your API key. One malicious visitor will only block themselves, keeping your global API key limits and other users completely unaffected.

Faster Deployments & Lower Costs

Build SPAs, browser extensions, static sites, or mobile apps without writing backend middleware. Save on server costs and speed up your time to production.

Real-Time Client-Side Updates

Establish secure WebSocket connections straight from the browser to receive instant price updates and on-chain metrics with minimal network overhead.

All Endpoints are Free. Only Boost What You Need.

Why pay for bloated monthly subscription plans that bundle hundreds of endpoints you'll never call? Every single REST and WebSocket endpoint on Bitcoin API is free by default, with generous rate limits. Scale only the routes driving your core business.

Zero Waste, Low Money Burn Rate

Keep your infrastructure lean. Keep 95% of your API integrations on our free tier, and selectively pay a small monthly fee only to boost the specific endpoints that require heavy high-frequency updates.

Zero-Config Gateway Level Boosts

No code adjustments, no config file updates, and no downtime. Boosts are linked instantly to your API key at the API gateway layer. Simply toggle a boost and watch the limits upgrade in real-time.

Scale and Downscale Effortlessly

Need higher throughput for a high-volatility event or campaign? Instantly upgrade your route limits, and downgrade them back to the free tier whenever you want via Stripe.

Built for everyone shipping with Bitcoin data

Our goal is simple: be the most comfortable Bitcoin API for developers, vibe coders, and AI agents. Each audience gets tools tailored to how they actually work.

Powerful search with an AI assistant that knows the entire API surface, so you find the right endpoint fast.

MCP tools and N8N integrations so you can wire Bitcoin data into your stack without writing glue code.

MCP tools and static HTML documentation that's easy to crawl, parse, and reason about.