> ## Documentation Index
> Fetch the complete documentation index at: https://docs.revstack.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Verify an API key

> Validates a Bearer token from the Authorization header and returns key metadata.



## OpenAPI

````yaml get /v1/system/verify
openapi: 3.0.0
info:
  title: Revstack API
  version: 1.0.0
  description: >-
    Open Source Billing OS for Developers. The scalable, developer-first billing
    engine with subscriptions, invoicing, usage metering, and entitlements.
servers:
  - url: http://localhost:6900
    description: Revstack API (Local Development)
security: []
paths:
  /v1/system/verify:
    get:
      tags:
        - API Keys
      summary: Verify an API key
      description: >-
        Validates a Bearer token from the Authorization header and returns key
        metadata.
      responses:
        '200':
          description: Verification result
          content:
            application/json:
              schema:
                nullable: true

````