Dev tools · checked 2026-10-19Can I vibecode Postman?
YES· one-shottable
For one developer, Postman's job is to send a request, show the response, keep requests in collections and swap values between environments. An agent builds that as a local app in one sitting, with plain files you can commit to Git. The gaps sit around it: the pm.* scripting sandbox that old collections lean on, monitors and mock servers that run on Postman's servers, and the shared workspaces where a team keeps one copy of everything. A solo build covers the daily loop; a team still needs a shared home for its collections.
$12/moprice per seat
$144you'd save a year
one sittingbuild time
—people replaced it
What you need on hand.
DifficultyIntermediate · Some system setup or keys.
TimeAbout an hour for a first version
- Claude Code, Codex or CursorAny of them can run the prompt.
- Node.js 22better-sqlite3 compiles a native module, so build tools must be installed.
- Your Postman exportsCollections and environments as JSON; Settings > Account settings > Export Data gets them all at once.
Before you buildPostman Free already gives one person the API client, collections and the runner, and Bruno is free too. You only need to pay or build when you want a team workspace or Solo's higher limits.
- 1. Install one agent: Claude Code, Codex, Cursor.
- 2. Make an empty folder and open it in the agent.
- 3. Paste the prompt below, press enter, and answer its questions as it builds.
The prompt
Build me a local API client to replace Postman. Requirements:
- Node.js 22 + TypeScript: a Fastify server and a React UI built with Vite. `npm start`
serves http://127.0.0.1:4800 and listens on localhost only.
- Storage is plain files so it can live in Git: ./workspace/<collection>/<folder>/<request>.json,
./workspace/environments/<name>.json, and secret variables in ./workspace/.secrets.json
(added to .gitignore). better-sqlite3 in ./data/history.db keeps the last 500 sent requests.
- Requests: method, URL with {{variable}} substitution, query params, headers, and bodies of
type JSON, form-urlencoded, multipart with files, raw text and GraphQL. Bearer, Basic and
API-key auth helpers. One active environment plus a global set.
- Send with `undici`: follow up to 10 redirects, 30 second timeout; show status, time, size,
headers, cookies and body, pretty-printed for JSON and XML, with an image preview.
- Scripts: pre-request and post-response JavaScript in `quickjs-emscripten` with a small subset
of pm: pm.environment.get/set, pm.variables.get, pm.request, pm.response.json(), pm.test()
and pm.expect from `chai`. Script errors appear in the UI and never crash the server.
- Runner: run a folder in order from the UI or with `npm run run -- <collection> --env <name>`;
print pass or fail per test and exit with code 1 if any test fails.
- Import Postman Collection v2.1 and environment JSON, listing every field that could not be
converted. Copy any request as a cURL command.
- Single user. No accounts, no telemetry, local-first; the only outbound calls are your requests.
- Out of scope: team workspaces, mock servers, monitors, Flows, WebSocket, gRPC, OAuth 2 flows.
- README: setup, the file layout, which pm calls work, and a warning that Postman scripts using
other pm APIs will not run.Opens your agent with the prompt filled in, you press enter. Or copy it and paste it into an empty folder.
Then keep going
Next prompts, same folder.
The first prompt builds the core. Run these one at a time in the same folder to grow it into your own Postman.
Add a local mock server to the API client in this folder. Requirements: - Each request can store example responses (status, headers, body, a name). - `npm run mock -- <collection> --port 4810` serves every request that has an example at its method and path, matching {{variable}} segments as wildcards. - Pick the example by an x-mock-example header, otherwise the first; add an optional delay in ms. - Log each hit to the terminal and to the UI, and return 404 with a JSON hint for unmatched paths. - Bind to 127.0.0.1 only. Update the README.Add OAuth 2 to the API client in this folder. Requirements: - An auth type with authorization code + PKCE and client credentials; fields for auth URL, token URL, client id, secret, scopes and a redirect URI of http://127.0.0.1:4800/oauth/callback. - A "Get token" button opens the browser, handles the callback, stores the access and refresh tokens in ./workspace/.secrets.json and shows the expiry. - Refresh automatically one minute before expiry; if refresh fails, say so in the UI. - Never print tokens in logs. Update the README with a worked example.
Add CI output to the runner of the API client in this folder. Requirements: - `npm run run -- <collection> --env <name> --junit report.xml` writes JUnit XML with one test case per pm.test and the failing assertion message. - A `--bail` flag stops at the first failure, and `--delay <ms>` waits between requests. - Environment variables named POSTMAN_VAR_<name> override environment values in CI. - Add a sample GitHub Actions workflow in ./examples/ and update the README.
What you lose
- Team workspaces with roles, comments and one shared copy of every collection
- Monitors, hosted mock servers and scheduled runs on Postman's infrastructure
- The full pm.* scripting sandbox, Flows and the public API network
- GraphQL, gRPC, WebSocket and MQTT clients
- Hosted documentation and SDK generation
Why people still pay
Collections are shared infrastructure for a team: tests, docs, mocks and monitors all hang off the same saved requests, and years of pm.* scripts only run in Postman's sandbox. Moving means rewriting scripts and convincing everyone else, which costs more than a seat.
Postman or your own copy?
Seats
Over
Your usage
3h ×$/h
Postman, 1 yr$144
Your own copy, 1 yr$5running + build session
You keep$139pays for itself in the first month
Estimate · Runs on your machine and sends only the requests you make. The build is token usage on your agent plan.
Take your data, then cancel.
1 · Take your data out of Postman
- 1Collections: open Collections, click View more actions next to one, choose More > Export collection, then click Export JSON.
- 2Environments: open Environments, click View more actions next to one and choose Export; global variables export from the Globals tab of the Variables pane.
- 3Everything at once: Settings > Account settings > Account > Export Data, pick collections, environments or both, then Request Data Export. A download link arrives by email and expires after two days; on a team only Admins and Super Admins can run it.
- 4The docs describe only collections and environments in these exports; monitors, Flows and published docs aren't mentioned, so note them down separately.
2 · Cancel Postman
- 1Open Billing, go to Plan and Payments and select the Overview tab.
- 2Select Cancel plan at the bottom; only the Billing or Super Admin role can.
- 3Changed your mind? Use Undo cancellation next to the notice in the billing dashboard.
- 4Unless you also file a Complete Account Cancellation, a cancelled paid plan drops to Free when it expires.
- Downgrades and annual-to-monthly changes only apply at renewal, so check the renewal date before you plan the move.
- A Complete Account Cancellation also deletes your content; for annual plans, the terms say to request it at least 30 days before the term ends.
- Free is one user, so every teammate becomes an individual Free account: export shared collections first.
- Requestly's docs describe importing Postman collection and environment files, so you can test a move before cancelling.
The escape hatch
Don't feel like building it? These are already free.
BrunoOpen sourceOffline-first client that keeps each request as a file in your repo, with a free CLI runner; paid editions add extras.★ 48k · active Oct 2026 · one-click install
macOS, Windows, Linux, CLIVisit ↗HoppscotchOpen sourceMIT-licensed client that runs in the browser and can be self-hosted for a team.★ 81k · active Oct 2026 · docker to self-host
Web, Windows, macOS, LinuxVisit ↗InsomniaOpen sourceKong's desktop client for REST, GraphQL and gRPC; cloud sync and team features are paid.★ 40k · active Oct 2026 · one-click install
macOS, Windows, LinuxVisit ↗
macOS, Windows, Linux, CLIVisit ↗HoppscotchOpen sourceMIT-licensed client that runs in the browser and can be self-hosted for a team.★ 81k · active Oct 2026 · docker to self-host
Web, Windows, macOS, LinuxVisit ↗InsomniaOpen sourceKong's desktop client for REST, GraphQL and gRPC; cloud sync and team features are paid.★ 40k · active Oct 2026 · one-click install
macOS, Windows, LinuxVisit ↗
The numbers
Postman pricing
| Plan | Monthly | Annual, per month | What you get |
|---|---|---|---|
| Free | $0/user | $0/user | 1 user, 5 integrations, 10,000 Postman API calls a month, 1,000 monitoring requests a month, 1 day of collection recovery, AI credits a month (50 in the comparison table, 100 in the plan blurb). |
| Solo | $12/user | $9/user | 1 user, 400 AI credits a month, 10 integrations, 100,000 API calls a month, 30 days of collection recovery, data-driven testing exports, webhooks, custom-branded docs, unlimited private npm packages. |
| Team | $23/user | $19/user | Unlimited users, 400 AI credits per user a month, 50 integrations, 1 million API calls a month, 90 days of collection recovery, basic role-based access, monitor reports, SDK generation, private workspace features. |
| Enterprise | custom | — | 800 AI credits per user (pooled), API Catalog, private runners, advanced roles, audit logs, SCIM, EU-only data residency. |
- Free tier
- One user and no team; 10,000 Postman API calls and 1,000 monitoring requests a month; one day of collection recovery.
- Billing
- Monthly or annual per user; annual saves up to 25%. The page toggle shows Solo at $12 and Team at $23 billed monthly, $9 and $19 billed annually. Downgrades and annual-to-monthly switches only take effect at renewal.
- Hidden costs
- AI credits past the monthly allowance cost $0.05 each on Solo and $0.04 on Team. Cloud performance testing is $0.04 per virtual-user hour, and Context Graph queries past the allowance are $0.01 each. SSO comes in the Simple Security add-on, which has no listed price.
- Source
- www.postman.com
Also on the list
Related apps
Free covers one user with the API client, collections, mock servers, the collection runner, Native Git and the CLI, plus 10,000 Postman API calls a month.
Yes. An AI coding agent such as Claude Code, Codex or Cursor can build a usable personal version in one session with the prompt on this page, running on your own machine.
About $12 a month on the Solo plan per seat, $144 a year (checked 2026-10-19).
Team workspaces with roles, comments and one shared copy of every collection; Monitors, hosted mock servers and scheduled runs on Postman's infrastructure; The full pm.* scripting sandbox, Flows and the public API network; GraphQL, gRPC, WebSocket and MQTT clients; Hosted documentation and SDK generation. If any of those matter to you, keep paying.
Yes: Bruno (open source), Hoppscotch (open source), Insomnia (open source).