Finance.dev - Aries API

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 Aries MCP Server

Most AI coding agents can install, authenticate, and configure the server themselves. Copy and paste this prompt into your agent.

Set up the Aries MCP server for this agent using the official setup guide at `https://finance.dev/mcp-auth` and the MCP server URL `https://mcp.aries.com/mcp`. Add it for all my projects, and don't configure a Client ID: the Aries server asks for it in the browser when I sign in. Then start the Aries MCP authentication flow so I can sign in, or tell me exactly how to start it if you can't.

Set up MCP connection ->

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

Options, stocks, analytics, company data, news, ETFs, and more.

Streaming

Real-time market data and account updates via WebSockets.

SDKs

Official JavaScript, Python, and Go SDKs.

API Reference

Explore our complete API documentation.

Changelog

Stay updated with the latest API changes.

Support

Questions| Reach out to our developer support team.

OpenAPI Specification

Download the OpenAPI specification for API integration.

Learn more about Aries

Aries gives developers a finance API built for real trading products, not just demo data. You can use one platform for live market data, order execution, account information, portfolio views, and supplemental financial datasets. If you are building brokerage experiences, trading tools, market dashboards, or AI workflows that need financial actions, Aries gives you the core API surface in one place.

Built for financial applications

Use Aries to power trading apps, brokerage workflows, client dashboards, and internal tools that need reliable market and account connectivity.

One API across the trading stack

Connect order placement, account data, WebSockets, analytics, watchlists, and supplemental market data without stitching together multiple vendors first.