Jev glossary
API & Models529 Overloaded
API error
The four documented failure statuses (401, 422, 429, and 529), with retry guidance for the last two.
- Category
- API & Models
- Also known as
- 529 Overloaded
- Reading time
- 1 min
- Related terms
- 4
- Directory entries
- 1
- Docs
- docs.typesafe.ai
- Added
- 2026-09-24
Definition
401 Unauthorized means a missing or invalid API key; 422 Unprocessable Entity means the request body failed validation and the body names the offending field; 429 Too Many Requests means a rate limit was exceeded; 529 Overloaded means TypeSafe is temporarily overloaded.
The retry guidance is simple: back off and retry 429 and 529 with exponential backoff, and fix the request for 401 and 422 rather than retrying.
Tagsapireliability
Related terms
Definitions that connect to this one.
API keyThe bearer credential for the TypeSafe API, created in the console and read from TYPESAFE_API_KEY by the official SDKs.API & ModelsRate limitThe throughput caps (250,000 tokens per second and 1,200 requests per minute) that return 429 when exceeded.API & ModelsRetry policyThe SDK configuration for retrying failed requests: attempt count, retryable statuses, backoff, and retry-header handling.API & ModelsExponential backoffThe retry strategy the docs recommend for 429 and 529 responses: wait longer after each attempt instead of retrying immediately.API & Models
From the Jev directory
Directory entries that go deeper on this term.
The raw HTTP contract behind every SDK: POST a state plus typed noul, choice, and score questions to /v1/systemone, and get one answer per question, with error codes and retry guidance.
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