PIXELOKAY / DEVELOPER TOOLS

API Development Studio

Compose HTTP requests, organize collections, inspect responses, and assert API behavior in one private, browser-based studio.

Real HTTP requestsCollections & environmentsSafe API testsSession request history
Open workspace ↓
YOUR WORKSPACE

API Development Studio

Requests run directly from your browser. Servers must allow your origin through CORS.

01 / REQUEST BUILDER

Request editor

02 / RESPONSE INSPECTOR

Response Not sent

Ready for your next request

Enter an HTTP URL and choose Send. You'll see the response status, timing, headers, body, and automated test results here.

KNOW BEFORE SENDING

Purpose-built for browser API development

Browser CORS is enforced

The tool uses direct fetch(). Cross-origin servers must grant CORS access. Requests using custom authorization headers may trigger preflights. No bypass proxy is included. Redirects are blocked by default to avoid forwarding request bodies to unexpected destinations.

Your secrets, your session

Bearer tokens, passwords and secret environment values are excluded from persistent workspace storage and exports. Query strings, nonsecret headers and request bodies can be persisted, so keep credentials out of those fields.

Test without running code

Assertions use a deliberately limited, non-executable text language: status checks, response time, headers, body text, and simple JSON paths. Test scripts can't execute arbitrary JavaScript.

Supported test statements
status == 200
time < 1500
size < 100000
header content-type contains json
json $.data[0].id exists
json $.success == true
body contains "hello"
What is not supported?

WebSocket, GraphQL schema exploration, multipart file uploads, arbitrary JavaScript test execution, browser-forbidden headers, raw TCP, and bypassing server CORS policies are outside this release. Postman v2.0/v2.1 importer accepts requests and compatible bodies, but does not run Postman scripts or load secrets. Redirects follow the browser's default behavior.

Secret values stay in memory for this tab only; you must re-enter them after refresh. Never enter sensitive tokens in non-secret variables.

Using API Development Studio

Compose REST requests, import a safe subset of Postman workspaces, inspect bounded responses and run declarative assertions against a user-selected endpoint.

Workflow

  1. Configure a method, URL, headers and supported body and review the endpoint before sending
  2. inspect the bounded response, history and truncation state
  3. define supported declarative assertions and export the workspace or response summary after checking sensitive fields.

Example

Send a simple GET request to an endpoint you control, inspect status and selected headers, then add a status assertion and export a workspace with credentials excluded.

Limits and data handling

Requests go directly to the configured endpoint under browser CORS and mixed-content rules; credentials are omitted and redirects are blocked by default. Optional redirect following can forward request bodies. The sample endpoint is not sent automatically. Saved workspaces redact recognized sensitive fields, but unrecognized secrets in URLs, bodies or ordinary fields may persist or export. Response capture is capped at 2 MiB and text preview at 256 KiB. Postman import is a subset; scripts are not executed and multipart, OAuth exchange and WebSockets are unsupported.

FAQs

Does the studio bypass CORS or send requests through a PixelOkay proxy?

No. Requests go directly from the browser to the endpoint and remain subject to browser network rules.

Are all secrets guaranteed to be removed from saved workspaces?

No. Recognized sensitive fields are redacted, but arbitrary secrets in paths, bodies or ordinary fields can remain. Review workspaces before saving or sharing.

Related tools