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Authentication

The Power Signals API uses API key authentication. Include your key in the X-API-KEY header with every request.

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Getting an API Key

  1. Sign in to your Power Signals dashboard
  2. Navigate to API Keys
  3. Click Create New Key and provide a descriptive name
  4. Copy the key immediately — it is only displayed once
Store your API key securely. Never commit it to version control or expose it in client-side code.

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Using Your API Key

Pass the key in the X-API-KEY header:

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Key Management

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Multiple Keys

You can create multiple API keys for different environments or applications. Each key has:
  • Name — A label you choose (e.g. “Production”, “Staging”, “Analytics Pipeline”)
  • Prefix — The first few characters, shown in your dashboard for identification
  • Created date — When the key was generated
  • Last used — When the key was last used to make a request

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Revoking Keys

If a key is compromised or no longer needed:
  1. Go to API Keys in your dashboard
  2. Find the key by its prefix or name
  3. Click Revoke
Revocation is immediate and irreversible. Any requests using the revoked key will receive a 401 Unauthorized response.

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Endpoint Authentication

All endpoints require authentication:

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Error Responses

If authentication fails, you’ll receive:
Or if the key is invalid/revoked:

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Security Best Practices

  • Use environment variables to store your API key
  • Create separate keys for development and production
  • Rotate keys periodically
  • Revoke keys immediately if compromised
  • Never share keys between teams — create one per person or service