A Postman-compatible API client,
built into Jasper.
Test, debug, mock, monitor, and document your APIs without leaving your team workspace. Bring your existing Postman collections, work together in real time, and skip the third-party subscription.
Everything you'd expect — and more
Built with the same workflows you already know, tightly integrated with the rest of your team workspace.
Collections + folders
Organise requests in nested folders and collections. Drag, drop, share with the team. Import directly from Postman, OpenAPI, or Swagger.
Request editor
All HTTP methods, Headers / Params / Body / Auth tabs, syntax-highlighted JSON / XML, and a one-click Send button. Cmd+Enter to fire.
Environments
Switch between dev, staging, and production with one click. Use {{varName}} substitution in URLs, headers, params, body, and auth.
Runs history
Every request is saved with full payload, response, status, time, and size. Search, replay, or pin as a saved example.
Monitors
Run a request on a cadence or a custom cron schedule. Get email + in-app alerts when an assertion fails or latency spikes.
Mock server
Spin up a public mock URL for any saved example in two clicks. Perfect for unblocking frontend work before the real API exists.
Saved examples
Capture any response as a named example for documentation, contract tests, or to power the mock server.
AI helpers
Describe a request in plain English, analyse a response for issues, or generate Markdown docs straight from a collection.
Version history
Every save creates a revision. Roll back, compare side-by-side with a built-in diff, and see who changed what.
Collaborator roles
Viewer / Editor / Admin per collection. Workspace-wide access controls. Real-time sync with active-edit protection.
Public gallery
Publish a collection with one click and share a public URL. Other teams can fork it into their own workspace.
SDK + Postman export
One-click export to Postman v2.1, OpenAPI 3.0, or generated TypeScript / Python / PHP SDKs you can drop straight into a project.
Why Jasper vs Postman
A quick look. Click through for the full comparison.
| Feature | Jasper API Client | Postman |
|---|---|---|
| Cost (team plan) | Included with Jasper | $14–$23 / user / month |
| Real-time team sync | ✓ Built in | Cloud workspaces only |
| Code-aware (links to your repo) | ✓ Built in | — |
| Built into your team workspace | ✓ Built in | Separate app |
Stop paying for Postman.
Jasper's API Client is included with every plan. Bring your collections across in minutes and keep your whole team in one workspace.