Composio

Composio is a platform that gives AI agents secure access to external apps and tools. It says it connects to more than 1,500 apps, so an assistant such as Claude, Codex or Cursor, or an agent you build yourself, can find information, update records and finish tasks across services like email, CRM, project management and developer tools, with the user kept in control.

Products

For individuals, Composio lets you plug the AI you already use into your apps. A CLI adds tools and authentication to a coding agent with one command. For builders, the developer platform provides SDKs, tool execution and authentication infrastructure, handling the OAuth flows and API keys that otherwise take a lot of work to build. The MCP Gateway offers one managed Model Context Protocol endpoint for all your tools and agents. Enterprise features include SSO, governance and audit controls for rolling out agents across an organisation.

Firewall and Instant

Composio Firewall is a newer feature that lets you set rules for what agents may do and blocks instructions hidden in tool results before the agent reads them, a defence against prompt injection. Instant provides ready audio, video, search, browser and data tools without managing separate keys.

Use cases

The site lists solutions for sales, marketing, product and design, customer support, engineering, HR and recruiting, finance and operations, e-commerce, content and IT and security, plus toolkits, documentation, a blog and a benchmark.

Pricing

Developers can sign up and start for free. Paid tiers with higher usage and enterprise plans are available; check the pricing page for current limits.

Who it suits

Composio suits developers building agents that must act in real software, and teams that want their existing AI assistants to work across company apps.

Things to consider

Giving an agent write access to your accounts carries real risk. Grant the narrowest permissions possible, require confirmation for sensitive actions such as sending email or deleting data, and review audit logs. Test workflows on sandbox accounts first.

A sensible first project is connecting a single app, such as your calendar or issue tracker, and asking your agent to complete one routine task end to end before adding more tools. Watching how it handles that one workflow shows where you need extra rules.