Composio API vs Nango API: Which API for AI agents?
Category: Developer Tools
Composio API and Nango API are evenly matched at 9.6/10 and 9.6/10. The right call depends on which specific signals matter to your workflow - check the side-by-side breakdown above. If you already use one in production, switching costs probably outweigh the marginal difference.
Score breakdown
| Composio API | Nango API | |
|---|---|---|
| Overall score | 9.6/10 | 9.6/10 |
| CLI relevance | 10 | 10 |
| Quality | 9 | 9 |
| Pricing | freemium | freemium |
| Install | npm install composio-core | npm install @nangohq/node |
Agent-friendliness signals
Only Composio API
No unique signals
Both
- ✓Official SDK
- ✓Env var auth
- ✓Headless compatible
- ✓CLI tool
- ✓JSON response
- ✓curl/CLI docs
- ✓Reasonable rate limits
- ✓Machine-readable pricing
Only Nango API
No unique signals
Capabilities
Only Composio API
- • execute tool calls
- • auth to 250+ APIs
- • trigger workflows
- • agent memory
- • action logs
- • custom tools
Both
No shared capabilities
Only Nango API
- • OAuth 2.0 handshake
- • token refresh
- • data sync
- • webhook relay
- • custom integrations
- • integration builder
When to choose each
Choose Composio API when...
- -Agents that need to call many SaaS tools without building individual integrations
- -LangChain / LlamaIndex / CrewAI workflows where Composio slots in as the tool layer
- -Teams standardising their agent tool stack on one SDK with built-in auth
Choose Nango API when...
- -Agents that need OAuth to 400+ APIs without building each flow - Nango handles tokens and refresh
- -B2B apps integrating with many SaaS tools - scales linearly across vendors
- -Teams that want open source + self-host option (Nango is OSS)
Full scores
For full scoring details, install gotchas, and reviews:
Frequently asked questions
Which is better for AI agents - Composio API or Nango API?
Composio API and Nango API are evenly matched at 9.6/10 and 9.6/10. The right call depends on which specific signals matter to your workflow - check the side-by-side breakdown above. If you already use one in production, switching costs probably outweigh the marginal difference.
Can I use Composio API and Nango API together?
Technically yes - they're separate APIs, so nothing stops you from calling both. In practice, most teams pick one and stick with it to avoid maintaining two SDKs and two sets of API keys. The exception is if each one covers a use case the other doesn't.
What pricing model do Composio API and Nango API use?
Composio API: freemium. Nango API: freemium. For exact rates, check each provider's pricing page directly - prices change and we don't track real-time pricing here.