Insomnia vs Overmind
Insomnia and Overmind are both developer tools tools aimed at developers and small businesses. Insomnia costs less, from $12/mo versus $120/mo for Overmind. Both have a free plan.
Open-source API client for REST, GraphQL, gRPC and MCP from Kong
Open-source loop that turns AI agent traces into models you own
| Pricing | Open source · $12 | Open source · $120 |
| Starting price | $12/mo | $120/mo |
| Free plan | Yes | Yes |
| Free trial | 14 days | — |
| Built for | Developers, Small businesses, Enterprise | Developers, Small businesses, Enterprise |
| Platforms | macos, windows, linux | web, linux |
| Country | US · 2015 | GB |
| Rating | — | — |
Choose Insomnia if
Developers who want a fast, local-first, open-source API client with Git-based collaboration.
- Open-source core under the Apache 2.0 license
- Local-first storage keeps sensitive requests off the cloud
- Clean, fast interface that is lighter than Postman
Look elsewhere if: Teams that need a full API platform with published docs and broad workspace collaboration (Postman, Apidog, Stoplight).
Choose Overmind if
Engineering teams with agents in production that want to improve accuracy and cost and keep ownership of the models.
- Open source and self-hostable, with weights you keep
- Covers the full loop from tracing to serving in one product
- Fixes arrive as reviewable git diffs instead of opaque changes
Look elsewhere if: Teams that only need LLM tracing inside a broader monitoring stack (Datadog) or have no production traffic yet.
Insomnia vs Overmind pricing
Insomnia
- Essentials$0Local, Git and cloud projects; Git Sync for up to 3 users
- Pro$12/user/mo$10 billed annually; unlimited users, RBAC, 10K mock requests
- Enterprise$45/user/moSelf-serve up to 50 users; SSO, SCIM, storage policies
Overmind
- Free$0/mo10 optimize runs, 2 training jobs/mo, 5 projects, $50 one-time credit
- Pro$120/moUnlimited optimize runs, training, deploys and projects
- EnterpriseCustomSSO, dedicated support, custom onboarding, usage contracts
- Self-hosted$0AGPL-3.0 platform via Docker Compose; SDK and CLI under MIT
Insomnia · Key features
- Requests for REST, GraphQL, gRPC, WebSocket, SSE and Socket.IO
- MCP client for testing Model Context Protocol servers
- OpenAPI design editor with live preview and linting
- Local, Git or end-to-end encrypted cloud storage per project
- Collection runner with pre- and post-request scripts and tests
- Mock servers built from specs, responses or plain-language prompts
Cons
- Collaboration and API documentation features trail Postman
- Free Git Sync is limited to 3 users
- Past login and sync changes hurt community trust
Overmind · Key features
- OpenTelemetry tracing with scores applied to traces as they arrive
- Root-cause views that isolate the failing step, tool call or context
- Data Workshop with versioned datasets built from production traffic
- User-defined evals running on live traces
- Optimizers that return prompt, tool or code fixes as git diffs
- Fine-tuning of small open models with downloadable weights
Cons
- Large jump from Free to the $120 Pro plan
- No annual pricing on the hosted service
- AGPL-3.0 limits closed redistribution of the platform
Insomnia vs Overmind: FAQ
Which is cheaper, Insomnia or Overmind?
Insomnia starts at $12/mo and Overmind at $120/mo. Both prices are checked on the vendors' own pricing pages.
Do Insomnia and Overmind have a free plan?
Yes, both Insomnia and Overmind have a free plan; paid plans add more usage and features.