Open Source Projects — entry 007 of 8

Metabase

Verified Jul 2026

Metabase is a self-hosted (or Metabase Cloud) open-source BI tool whose REST API is documented via an interactive OpenAPI/Scalar reference at `/docs/latest/api`; current docs describe generating an `x-api-key` from Admin settings for programmatic access, correcting auth from "None" to "API Key" (the older session-cookie login flow still exists but keyed API access is now the documented path). Its own `MB_DISABLE_CORS_ON_LOCALHOST` config option (default `false`) confirms the server sends CORS headers by default, consistent with cors "yes". The core server is free and open-source to self-host, with paid Pro, Enterprise, and hosted Cloud tiers layered on top.

business-intelligenceopen-sourceself-hosteddashboardsapi-key
AuthenticationAPI KeySign up with the provider to obtain credentials.
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

Score75out of 100
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months

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Scored 75 on greatapis.com
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Auth quickstart

  1. Sign up with the provider to get an API key.
  2. Send it on every request as a headerAuthorization: <key>
  3. The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored

Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.