Development — entry 056 of 100

Keyvalue

Verified Jul 2026

Keyvalue is a small, single-maintainer key-value store: a GET to `/api/KeyVal/GetAppKey` issues a free app-key with no signup, then plain GET/POST calls under that key create, read, increment/decrement, or update values (max 64-char keys, 1024-char values). It's confirmed live and responding with wildcard-style reflected CORS, but as a hobby-run service it comes with no uptime or persistence guarantee.

key-valuekeylessprototypinghobby-project
AuthenticationNone requiredCall it straight away — no key, no signup.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSONResponses can be requested as JSON.

GreatAPIs Score

Score74out of 100
Authentication25/25No authentication required
Pricing20/20Free to use
Docs0/20No docs or spec available
Formats9/15Single response format
Freshness20/20Verified within 6 months

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Scored 74 on greatapis.com
<a href="https://greatapis.com/api/keyvalue/"><img src="https://greatapis.com/badge/keyvalue.svg" alt="Scored 74 on greatapis.com"></a>

Auth quickstart

  1. 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.