Keys & Settings
API keys in FastRouter allow granular control over access, usage, and budget. You can generate multiple keys with custom configurations for different users, projects, or integrations.
API Keys in FastRouter are tied to individual users and inherit their project-level permissions. They provide secure, scoped access to FastRouter’s APIs — ideal for development, experimentation, and fine-grained control within specific projects.
Key Characteristics
User-linked: Each key belongs to a specific user.
Permission-aware: Inherits the user’s project-level permissions.
Self-service: Can be created by any project member.
Flexible use: Best suited for testing, scoped integrations, or per-user API access.
Creating an API Key
When you create an API key, FastRouter generates a one-time visible token. Be sure to copy and store it securely — it cannot be retrieved later for security reasons.
Key Settings
Key Name
Provide a custom label to identify the key within your project.
Budget Controls
Set a maximum spend (in USD) for this key.
Leave blank for unlimited usage.
Reset Budget
Choose when the key’s budget resets:
Never (default)
Daily
Weekly
Monthly
Advanced Settings
Select Models
Choose which LLM models this key can access.
Default: All models selected under the project.
Rate Limits: Tokens per Minute (TPM)
Limit how many tokens this key can consume per minute.
Cannot exceed the project-level TPM cap.
Rate Limits: Requests per Minute (RPM)
Set the maximum number of requests per minute.
Cannot exceed the project-level RPM cap.
Expire Key
Schedule an automatic expiration date and time.
Useful for temporary access, contractor accounts, or testing environments.
Disable Content Logging
Prevents logging of requests and responses associated with this key.
Recommended for keys handling sensitive or private data.
Best Practices
Rotate keys periodically and revoke unused ones.
Set budget and rate limits to prevent accidental overspending.
Tag keys by project or purpose for better organization.
Restrict model access for tighter control and security.
Last updated