Development — entry 092 of 100
Thunder Client
Thunder Client is a lightweight REST API client built as a VS Code (and JetBrains) extension, offering Postman-like collections, environments, and a CLI runner without leaving the editor. It started as a completely free alternative to Postman but has since introduced a paywall: the free tier is capped at 30 collection runs and restricted to non-commercial use, while a paid Pro tier (around $3/month) and business licensing unlock collection sync, environment sharing, and unlimited runs. It exports and imports collections as JSON, compatible with Postman's own collection format.
AuthenticationNone requiredCall it straight away — no key, no signup.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score85
Authentication25/25No authentication required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/thunder-client/"><img src="https://greatapis.com/badge/thunder-client.svg" alt="Scored 85 on greatapis.com"></a>Auth quickstart
- No key needed — call it now.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.