Composio vs Flagsmith
Composio and Flagsmith are both developer tools tools aimed at developers and small businesses. Composio costs less, from $29/mo versus $45/mo for Flagsmith. Both have a free plan.
Tool and auth layer that lets AI agents act in 1,500+ apps
Open-source feature flags and A/B tests, cloud or self-hosted
| Pricing | Freemium · $29 | Open source · $45 |
| Starting price | $29/mo | $45/mo |
| Free plan | Yes | Yes |
| Free trial | — | 14 days |
| Built for | Developers, Small businesses, Enterprise | Developers, Small businesses, Enterprise |
| Platforms | web | web |
| Country | US · 2023 | GB |
| Rating | — | — |
Choose Composio if
Developers building multi-user AI agents who need hundreds of authenticated app integrations without writing OAuth code.
- Removes weeks of OAuth and token-refresh work per integration
- Generous free tier of 100,000 tool calls a month
- Works with most agent frameworks and any MCP client
Look elsewhere if: Teams that want visual, no-code automations between a handful of apps (Zapier, Make).
Choose Flagsmith if
Engineering teams that want open-source, self-hostable feature flags with optional cloud hosting and built-in experiments.
- Open source under BSD-3-Clause with a real self-hosting path
- Unlimited flags, environments and segments on every plan
- Wide SDK coverage including mobile and Flutter
Look elsewhere if: Teams that want flags bundled with product analytics or a large enterprise vendor ecosystem (PostHog, LaunchDarkly).
Composio vs Flagsmith pricing
Composio
- Hobby$0100K tool calls and 50K trigger events/mo, hard cap
- Pro$29/mo$29 usage credit, then $0.0003 per tool call
- EnterpriseCustomSSO/SCIM, customer-managed keys, BAA, SLA
Flagsmith
- Free$050k requests/mo, 1 team member, 1 project
- Start-Up$45/mo$40/mo billed yearly; 1M requests, 3 members, A/B testing
- Scale-Up$300/mo$250/mo yearly; 5M requests, SAML SSO, roles, audit logs
- EnterpriseCustomPrivate cloud or on-prem, SLA, onboarding, priority support
Composio · Key features
- Managed OAuth and API-key storage for each end user of your agent
- More than 1,500 app toolkits including Gmail, Slack, GitHub and Salesforce
- Python and TypeScript SDKs with OpenAI, Anthropic and Google providers
- MCP server that plugs into Claude, ChatGPT, Cursor and Codex
- Webhook triggers so agents react to events in connected apps
- Action limits, approval steps and an audit log of every tool call
Cons
- May 2026 security incident exposed some customer credentials and API keys
- Composio-managed OAuth apps count toward a smaller free allowance
- Usage-based billing on Pro is harder to forecast than a flat fee
Flagsmith · Key features
- Feature flags and remote config with user, segment and percentage targeting
- Bayesian A/B experiments built directly on existing flags
- Scheduled flags, multivariate flags and change requests
- SDKs for JavaScript, React, iOS, Android, Flutter, Python, Go and Rust
- OpenFeature provider for cloud, private cloud and self-hosted setups
- Audit logs, roles and permissions for governance
Cons
- Free cloud plan allows only one team member
- SSO, roles and audit logs require Scale-Up at $250 or more a month
- Experiments v1 supports one primary metric per test
Composio vs Flagsmith: FAQ
Which is cheaper, Composio or Flagsmith?
Composio starts at $29/mo and Flagsmith at $45/mo. Both prices are checked on the vendors' own pricing pages.
Do Composio and Flagsmith have a free plan?
Yes, both Composio and Flagsmith have a free plan; paid plans add more usage and features.