Polonium Local API Tester

Explore this developer service’s ongoing no-cost allowance, restrictions and official documentation before deploying.

INCLUDED FREE ALLOWANCEFree MIT-licensed locally run REST API and WebSocket testing application with reusable request collections and no software usage quota or expiry stated.

View official documentation

Plan details

What do these plan and deployment labels mean?

Plan: Ongoing free allowance
Deployment model: Local / embedded
Credit card: Not required
Commercial use: Allowed
Added to directory (UTC): 2026-11-08
Last checked: 2026-11-08

Important restrictions

Run the Next.js application on your own machine; Node.js/pnpm setup and access to target APIs are required. Hosting, network, and third-party API usage are not included. Upstream documents a development startup; production deployment readiness and maintenance should be reviewed before public exposure.

View official documentation

Independent community listing, not affiliated with the provider. Always check the latest billing policy and quotas before enabling paid usage.