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Firecamp

Open-source multi-protocol API client

freemiumopen sourceverified Aug 24, 2026

Firecamp is an open-source API DevTool supporting REST, GraphQL, WebSocket, and Socket.IO protocols as a lightweight alternative to Postman. It provides IntelliSense, team collaboration with shared workspaces, and seamless import from OpenAPI, Insomnia, AsyncAPI, and HAR formats. Each protocol gets a dedicated testing playground with response metrics including time, size, and status codes.

Firecamp positions itself as a developer-first API testing tool that supports the full spectrum of modern API protocols in a single interface. While most API clients focus primarily on REST, Firecamp provides dedicated playgrounds for GraphQL with schema introspection, WebSocket connections with bidirectional messaging, and Socket.IO with visual monitoring of emitters and listeners. Each playground shows response metrics including timing, payload size, and status codes for comprehensive testing feedback.

The collaboration features allow teams to create shared workspaces where API definitions, test collections, and execution history stay synchronized. Import support covers OpenAPI and Swagger specifications, Insomnia exports, AsyncAPI schemas, and HAR files, making migration from other tools straightforward and reducing vendor lock-in concerns. The lightweight architecture keeps resource consumption low compared to Electron-based alternatives, making it practical for developers running multiple tools simultaneously.

As an open-source project, Firecamp offers transparency and community-driven development while maintaining a polished user experience. No complex setup or account creation is required to start testing APIs, and the tool works equally well for solo developers prototyping endpoints and teams collaborating on complex API integration projects.

Pricing

Open-source multi-protocol API development platform (AGPL-3.0). 100% free for individual developers on desktop and web ($0 software cost); Team collaboration plans start at ~$12/user/month for real-time cloud workspace synchronization.

full pricing breakdown →

Platforms

Web-based, desktop app available

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FAQ

What is Firecamp?

Firecamp is an open-source API DevTool supporting REST, GraphQL, WebSocket, and Socket.IO protocols as a lightweight alternative to Postman. It provides IntelliSense, team collaboration with shared workspaces, and seamless import from OpenAPI, Insomnia, AsyncAPI, and HAR formats. Each protocol gets a dedicated testing playground with response metrics including time, size, and status codes.

Is Firecamp free?

Firecamp offers a free tier alongside paid plans. Open-source multi-protocol API development platform (AGPL-3.0). 100% free for individual developers on desktop and web ($0 software cost); Team collaboration plans start at ~$12/user/month for real-time cloud workspace synchronization.

Is Firecamp open source?

Yes — Firecamp is open source.

Is Firecamp still maintained?

Yes — Firecamp is active. Its listing was last verified on August 24, 2026.

What are the best Firecamp alternatives?

The top editor-verified Firecamp alternatives are Postman, Insomnia.