Key takeaways
- 1000+ pre-built toolkits with managed authentication let agents connect to any SaaS without OAuth/API plumbing
- Framework-agnostic: works with OpenAI, Anthropic, LangChain, CrewAI, AutoGen, Vercel AI SDK, and more
- 27K GitHub stars and $29M funding (July 2025) signal strong developer adoption and runway
FAQ
What is Composio?
An open source agent integration platform that provides 1000+ pre-built toolkits with managed authentication, letting AI agents connect to any SaaS or API without building OAuth flows.
How much does Composio cost?
Free tier available with usage-based pricing. Enterprise plans available. $2K in credits for qualifying startups.
Who competes with Composio?
Nango (auth focus), Zapier AI (workflow focus), and custom integration building. Composio differentiates with agent-native design and 1000+ toolkits.
Executive Summary
Composio provides the integration layer for AI agents — 1000+ toolkits with managed authentication, sandboxed execution, and support for every major agentic framework. Instead of building OAuth flows and API wrappers, developers use Composio's SDKs to give agents access to GitHub, Slack, Salesforce, databases, and more.
| Attribute | Value |
|---|---|
| Company | Composio (ComposioHQ) |
| Founded | 2024 |
| Funding | $29M (July 2025) |
| Batch | Y Combinator W24 |
| GitHub Stars | 27K+ |
Product Overview
Composio solves the "last mile" problem for AI agents: connecting to real-world tools. When an agent needs to create a GitHub issue, update a Salesforce record, or query a database, it needs authentication, error handling, and API wrappers. Composio provides all of this out of the box.
The platform started before the current agent hype, recognizing that making agents useful requires solving fundamental infrastructure problems — particularly authentication and tool reliability.
Key Capabilities
| Capability | Description |
|---|---|
| 1000+ Toolkits | Pre-built integrations for GitHub, Slack, Gmail, Salesforce, Notion, databases, and more |
| Managed Auth | Handle OAuth2, API keys, and token refresh automatically |
| Sandboxed Execution | Code execution environments (e2b) with isolation |
| Tool Search | Agents discover relevant tools dynamically |
| Skill Learning | Knowledge from one agent's tool usage improves others |
Framework Support
| Framework | TypeScript | Python |
|---|---|---|
| OpenAI | ✅ | ✅ |
| OpenAI Agents | ✅ | ✅ |
| Anthropic | ✅ | ✅ |
| LangChain | ✅ | ✅ |
| LlamaIndex | ✅ | ✅ |
| CrewAI | — | ✅ |
| AutoGen | — | ✅ |
| Vercel AI SDK | ✅ | — |
| Google Gemini | ✅ | ✅ |
Technical Architecture
Composio operates as a hosted service with SDKs for Python and TypeScript. Agents make tool calls through Composio's API, which handles authentication, execution, and error recovery.
Integration Pattern
Agent (OpenAI/Claude/etc.)
↓ tool call
Composio SDK
↓ authenticated request
Composio Platform
↓ managed auth + execution
Target API (GitHub, Slack, etc.)
Key Technical Details
| Aspect | Detail |
|---|---|
| Deployment | Cloud (hosted service) |
| SDKs | Python, TypeScript |
| Auth Methods | OAuth2, API keys, managed tokens |
| Execution | Sandboxed (e2b environments) |
| Open Source | Yes (repo: ComposioHQ/composio) |
Strengths
- Massive toolkit library — 1000+ integrations means agents can connect to almost anything without custom code
- Framework-agnostic — Works with OpenAI, Anthropic, LangChain, CrewAI, AutoGen — no lock-in
- Managed authentication — OAuth2, token refresh, API key rotation handled automatically
- Strong traction — 27K GitHub stars, $29M funding, YC backing indicates developer adoption
- Skill sharing — When one agent learns a tool edge case, others benefit (network effect)
Cautions
- Infrastructure layer — Not a team agent itself; requires integration with agent platforms
- Cloud dependency — Hosted service required for managed auth; limited self-host options
- Premium tool costs — Search APIs, code execution, web scraping incur additional charges
- Early stage — Founded 2024; enterprise features still maturing
- Indirect value — Teams need to build or use agents on top; not plug-and-play productivity
Pricing & Licensing
| Tier | Includes |
|---|---|
| Free | Limited tool calls, basic toolkits |
| Pro | Higher limits, premium tools |
| Enterprise | Custom, contact sales |
| Startup Program | $2K credits after free period |
Premium tools: Search APIs (Google, Perplexity), code execution (e2b), web scraping (Firecrawl), OCR, and compute-intensive operations cost extra.
Open source: Core SDKs are open source; hosted platform is commercial.
Competitive Positioning
Direct Competitors
| Competitor | Differentiation |
|---|---|
| Nango | Auth-focused; Composio adds tool execution |
| Zapier AI | Workflow-focused; Composio is agent-native |
| Custom builds | Composio saves months of OAuth/API work |
When to Choose Composio
- Choose Composio when: Building agents that need to connect to many SaaS tools
- Choose custom integration when: You need deep control over specific APIs
- Choose Zapier AI when: You want no-code workflow automation, not agent tool calls
Integration with Team Agents
Composio powers many team agent platforms behind the scenes:
| Team Agent | Uses Composio For |
|---|---|
| CrewAI | Official integration for tool access |
| Custom agents | GitHub, Slack, Salesforce connectors |
| Any LangChain agent | Drop-in tool provider |
Bottom Line
Composio is the integration layer that makes agents actually useful. Instead of spending months building OAuth flows and API wrappers, teams can use Composio's 1000+ toolkits and focus on agent logic.
Recommended for: Teams building custom agents that need to connect to multiple SaaS tools and APIs.
Not recommended for: Teams wanting a ready-to-use team agent (use Claude Code, Codex, or Tembo instead) — Composio is infrastructure, not product.
Outlook: Strong position as the "Stripe for agent integrations" — well-funded, good traction, and essential infrastructure as agents proliferate.
Research by Ry Walker Research • methodology