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500 error when configuring Mistral AI API key #3937
Description
Configuring the Mistral AI provider fails with a backend 500 error and the API key cannot be saved.
Steps to reproduce:
- Go to Settings
- Open Models
- Click Configure now for Mistral AI
- Enter API key
- Click Confirm
Request payload:
{
"header": {
"name": "Mistral AI",
"description": ""
},
"secret": {
"kind": "provider_key",
"data": {
"provider": {
"key": "TEST_KEY"
}
}
}
}Reacted by dosubot
Activity
linear commentedon Mar 9, 2026
AGE-3695
dosubot commentedon Mar 9, 2026
This looks like a potential backend validation or configuration issue. A few things to check:
Most likely cause: There may be a payload structure mismatch between what the frontend sends and what the backend expects. The validator logic expects a nested structure (
data["provider"]["key"]), but test fixtures show a flat structure like{"provider": "openai", "key": "sk-xxx"}.Other potential causes:
AGENTA_CRYPT_KEYisn't properly configuredTo investigate further: Check the backend logs for the specific error details - all exceptions are logged with a support_id that would help pinpoint the exact failure.
There's also a related UI bug (AGE-3443) where provider configurations incorrectly default to Mistral AI.
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