Every API protocol.
One workspace.
Design, debug, test, and share REST, GraphQL, gRPC, WebSocket, SSE, MQTT, and MCP — all in a single fast, native desktop app. No context switching.
Alpha 0.1 · Source-available · macOS · Windows · Linux
Eight protocols, one collection tree
Stop juggling five different tools
Not just another API client
What sets Resbase apart
Two things no other client does the way we do.
Share workspaces, never your secrets
Collections and shared content are encrypted end-to-end. You keep custody of your private key — secrets stay masked, stay local, and never touch an export or a server in the clear.
- →Client-side E2EE with your own key custody
- →Secrets masked and excluded from every export
- →Team sync without trusting the server with plaintext
Let AI agents drive Resbase
Resbase speaks MCP in both directions. Expose your workspace over resbase-mcp and let an agent manage collections, run CRUD, execute requests, and read back responses — permission-gated, every time.
- →Create, read, update & delete collections and requests
- →Execute requests and stream responses back to the agent
- →Also call trusted external MCP servers from Resbase
Every protocol lives in one collection tree
Design REST, GraphQL, gRPC, WebSocket, SSE, MQTT, and MCP requests side by side — organized the way you actually think about your API.
- →Consistent request UI across all seven protocols
- →Group by domain, not by tool
- →Pinned collections and quick switching
GraphQL & streaming without a context switch
Write queries, manage variables and auth, introspect schemas, and watch live WebSocket, SSE, and MQTT traffic — all in the same focused workspace.
- →Schema introspection & structured results
- →Live message streams with lifecycle events
- →Publish/subscribe composers built in
Turn journeys into repeatable checks
Combine API calls, scripts, browser actions, retries, and assertions in a visual flow editor. Run them against real services and review every step.
- →Visual test-set editor for full API journeys
- →Pre- and post-request scripts with assertions
- →Step timing, logs, and artifacts on every run
Built for individuals and teams
Manage teams, roles, and invitations from the desktop app. Sync workspaces across your team while every shared byte stays end-to-end encrypted.
- →Roles, invitations, and workspace sync
- →Works solo or across a whole team
- →Desktop-native, no account required to start
Everything the API lifecycle needs
From first request to automated regression checks — without leaving the workspace.
Scripting & tests
Pre-request and post-response scripts with assertions, variables, and a structured console — right beside the request.
Environments & secrets
Switch environments instantly while secret values stay masked and outside every collection export.
Mock from examples
Attach example responses to requests and launch a local mock server without spinning up another project.
Code generation
Generate ready-to-use client snippets while preserving environment placeholders and secret boundaries.
Request history
Reopen recent requests with status, timing, size, and unresolved-variable snapshots intact.
Import & export
Bring your work from Postman, Bruno, and OpenAPI — then export portable bundles whenever you need.
Get Resbase
Source-available and free for personal use and small companies with up to four users. Build the Alpha for your desktop while signed installers are still in development.
Alpha 0.1 · Free for companies under 5 users · Commercial licenses for larger teams
Public on GitHub from day one
Resbase ships source-available on GitHub. Read the code, build it yourself, and open issues. Personal and noncommercial use is free, and companies can use it internally at no charge with up to four users.
The source-available, multi-protocol API workspace. REST, GraphQL, gRPC, WebSocket, SSE, MQTT & MCP — with end-to-end encryption.