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Welcome to Finance.dev

Real-time market data. Instant order execution. Portfolio analytics. Everything you need to build professional trading applications on Aries.

By continuing to use or access Aries API, you are agreeing to be bound to ourDeveloper Agreement

Add Skill to your AI agents

Give Cursor, OpenClaw, Claude Code, Windsurf, and other AI coding assistants direct access to this documentation.

npx skills add https://finance.dev/docs
How to add skills to your AI agents →
Connect to our MCP Server

Use the Model Context Protocol to give AI coding assistants like Cursor, Claude Code, and Windsurf direct access to Aries API—market data, orders, and account info without leaving your IDE.

Coming soon

Making Your First Request

Authenticate and make your first live API call in under 5 minutes.

Authentication

OAuth2 flows, credentials, and token management.

Supplemental API

Analytics, news, financials, options, ETFs, and more.

Streaming

Real-time market data and account updates via WebSockets.

SDKs

Official JavaScript, Python, and Go SDKs.

Rate Limits

Understand API rate limits and best practices.

API Reference

Explore our complete API documentation.

Changelog

Stay updated with the latest API changes.

Support

Questions? Reach out to our developer support team.