API Keys
Ultralytics Platform API keys enable secure programmatic access for remote training, inference, and automation. Create scoped keys with specific permissions for different use cases.
Create API Key
Create a new API key:
- Go to Settings > API Keys
- Click Create Key
- Enter a name for the key
- Select permission scopes
- Click Create
Key Name
Give your key a descriptive name:
training-server- For remote training machinesci-pipeline- For CI/CD integrationmobile-app- For mobile applications
Permission Scopes
Select scopes to limit key permissions:
| Scope | Permissions |
|---|---|
| training | Start training, stream metrics |
| models | Upload, download, delete models |
| datasets | Access and modify datasets |
| read | Read-only access to all resources |
| write | Full write access |
| admin | Account management (use carefully) |
Least Privilege
Create keys with only the permissions needed. Use separate keys for different applications.
Key Display
After creation, the key is displayed once:
Copy Your Key
The full key is only shown once. Copy it immediately and store securely. You cannot retrieve it later.
Key Format
API keys follow this format:
ul_a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6q7r8s9t0
- Prefix:
ul_identifies Ultralytics keys - Body: 40 random hexadecimal characters
- Total: 43 characters
Using API Keys
Environment Variable
Set your key as an environment variable:
export ULTRALYTICS_API_KEY="ul_your_key_here"
$env:ULTRALYTICS_API_KEY = "ul_your_key_here"
In Code
Use the key in your Python scripts:
import os
# From environment (recommended)
api_key = os.environ.get("ULTRALYTICS_API_KEY")
# Or directly (not recommended for production)
api_key = "ul_your_key_here"
HTTP Headers
Include the key in API requests:
curl -H "Authorization: Bearer ul_your_key_here" \
https://platform.ultralytics.com/api/...
Remote Training
Enable metric streaming with your key.
Package Version Requirement
Platform integration requires ultralytics>=8.4.0. Lower versions will NOT work with Platform.
pip install "ultralytics>=8.4.0"
export ULTRALYTICS_API_KEY="ul_your_key_here"
yolo train model=yolo11n.pt data=coco.yaml project=username/project name=exp1
Manage Keys
View Keys
All keys are listed in Settings > API Keys:
| Column | Description |
|---|---|
| Name | Key identifier |
| Scopes | Assigned permissions |
| Created | Creation date |
| Last Used | Most recent use |
Revoke Key
Revoke a key that's compromised or no longer needed:
- Click the key's menu
- Select Revoke
- Confirm revocation
Immediate Effect
Revocation is immediate. Any applications using the key will stop working.
Regenerate Key
If a key is compromised:
- Create a new key with same scopes
- Update your applications
- Revoke the old key
Security Best Practices
Do
- Store keys in environment variables
- Use separate keys for different environments
- Revoke unused keys promptly
- Use minimal required scopes
- Rotate keys periodically
Don't
- Commit keys to version control
- Share keys between applications
- Use admin scope unnecessarily
- Log keys in application output
- Embed keys in client-side code
Key Rotation
Rotate keys periodically for security:
- Create new key with same scopes
- Update applications to use new key
- Verify applications work correctly
- Revoke old key
Rotation Schedule
Consider rotating keys every 90 days for sensitive applications.
Troubleshooting
Invalid Key Error
Error: Invalid API key
Solutions:
- Verify key is copied correctly
- Check key hasn't been revoked
- Ensure key has required scopes
- Confirm environment variable is set
Permission Denied
Error: Permission denied for this operation
Solutions:
- Check key scopes include required permission
- Verify you're the resource owner
- Create new key with correct scopes
Rate Limited
Error: Rate limit exceeded
Solutions:
- Reduce request frequency
- Implement exponential backoff
- Contact support for limit increase
FAQ
How many keys can I create?
There's no hard limit on API keys. Create as many as needed for different applications and environments.
Do keys expire?
Keys don't expire automatically. They remain valid until revoked. Consider implementing rotation for security.
Can I see my key after creation?
No, the full key is shown only once at creation. If lost, create a new key and revoke the old one.
Are keys region-specific?
Keys work across regions but access data in your account's region only.
Can I share keys with team members?
Better practice: Have each team member create their own key. This enables:
- Individual activity tracking
- Selective revocation
- Proper access control