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NEW: Prediction Markets API

One REST API for all prediction markets data
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Live and Historical FX Data for Fiat & Crypto

Get high-performance currency data from crypto markets and traditional FX. Delivered through REST, WebSocket, and institutional-grade FIX APIs.
Get a Free API KeySee Pricing
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190+
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Fiat and cryptocurrency assets supported
99.99
%
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SLA uptime across all endpoints
50+
TB
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Historical currency data available
4
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Integration methods
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Real-Time & Historical Exchange Rates for Crypto and Forex

Access accurate, up-to-date exchange rates API data for both fiat currencies and cryptocurrencies. Updates occur every 100ms, with REST, WebSocket, and FIX endpoints to suit your trading or analytics platform. The API supports bid, ask, mid-market, and VWAP pricing, so you can power cross-border transactions, remittance solutions, and multi-currency financial analytics.
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What you get

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Real-Time Exchange Rates
Receive currency rate updates every 100 milliseconds via WebSocket or FIX. Includes bid, ask, mid, and VWAP prices.
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Historical Exchange Rates
Query historical FX and crypto data with configurable time intervals (from 1 second to 1 day), returned in OHLC or VWAP format.
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Multiple Access Methods
Available via REST API, WebSocket for live streams, FIX for institutional trading systems, and JSON-RPC for custom workflows.
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Crypto and Forex Market Coverage
Supports over 190 assets across fiat currencies, cryptocurrencies, and stablecoins. Aggregated from major exchanges and forex providers.
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Standards-Based API Design
Consistent endpoints, ISO 8601 timestamps, millisecond precision, and support for HTTP/1.1, HTTP/2, HTTP/3, and WebSocket.
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Authentication Options
Use API Key (header, query, or path), JWT tokens, or Basic Auth. Multiple methods supported for flexibility in secure environments.
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MCP Compability
Plug the API directly into AI applications with almost no effort.

MCP compability for seamless data integration

FinFeedAPI supports the Model Context Protocol (MCP), an open specification that makes our financial data APIs machine-readable. This allows AI models, autonomous agents, and next-generation crypto apps to programmatically discover and integrate our data with little to no custom code.

Key benefits for users include:

  • Easy AI Integration: Directly connect FinFeedAPI data to large language models (LLMs) and AI agents.
  • Simplified Development: Access all FinFeedAPI services through a single, unified MCP endpoint, eliminating the need for custom wrappers.
  • Increased Reliability: Schema-level validation catches errors and ensures more robust integrations.
  • Future-Proof Design: New services and endpoints are automatically discovered by your applications without requiring client-side updates.

Why this is the best choice for developers

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Detailed Documentation and SDKs
Get up and running quickly with full API reference, usage examples, and SDKs for Python, JavaScript, Go, and more.
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Consistent, Predictable Interfaces
Clean, versioned endpoints with consistent naming, standardized response formats, and clear error codes.
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Protocol Flexibility
Supports HTTP/1.1, HTTP/2, HTTP/3, WebSocket, and FIX — suitable for everything from browser apps to institutional systems.
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Unified Access to Historical and Real-Time Data
Query both historical and live exchange rates through a single API structure, reducing integration complexity.
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Transparent, High-Quality Data
All prices are calculated using a proprietary algorithm with 3-sigma outlier filtering and 24H VWAP from verified exchanges.
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Efficient Data Delivery
Streaming endpoints include heartbeat messages, efficient reconnect strategies, and low-latency data optimized for trading platforms.

Use cases

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Use case: E-commerce

Customers abandon their carts when prices feel inconsistent, unclear, or unexpectedly high after currency conversion. For e-commerce platforms, brands, and payment providers, having access to reliable exchange rate data is essential for transparent pricing, fair transactions, and international growth.

Learn how we solved that
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