Title: Errors %E2%80%94 LLM EU
Canonical: https://llmeu.com/en/docs/errors/
Markdown mirror: https://llmeu.com/en/docs/errors.md
Machine-readable: https://llmeu.com/llms.txt (index) - https://llmeu.com/llms-full.txt (full catalogue) - https://llmeu.com/llms-catalogue.json

Get started

- [Quickstart](/en/docs/quickstart/)
- [Console](/en/docs/console/)
- [Migration](/en/docs/migration/)
- [API reference](/en/docs/api/)

Reference

- [Authentication](/en/docs/authentication/)
- [Endpoints](/en/docs/endpoints/)
- [Errors](/en/docs/errors/)
- [Rate limits](/en/docs/rate-limits/)
- [Streaming](/en/docs/streaming/)
- [Policies](/en/docs/policies/)
- [Routing and policy](/en/docs/routing/)
- [Residency and regions](/en/docs/residency/)
- [Evidence and verification](/en/docs/evidence/)
- [OpenAI compatibility](/en/docs/openai-compat/)

Operate

- [Self-hosting](/en/docs/self-hosting/)

# Errors

Every error code this API can answer with, the HTTP status that carries it, and what to do about it. The envelope is OpenAI-shaped with one namespaced addition.

## The envelope

error.message is written for a person reading a log, error.type names the class of failure, and error.code is the stable identifier to branch on %E2%80%94 message text is not a contract. Where the API has structured detail (which policy, which endpoint, which model) it arrives in error.llmeu and never replaces the three standard fields.

```
{
  "error": {
    "message": "No endpoint satisfies residency eu-owned. Residency is never relaxed silently.",
    "type": "conflict_error",
    "code": "no_endpoint_for_policy",
    "llmeu": { "requested": "llmeu-auto" }
  }
}
```

## type follows status

The mapping below is the one the API applies, rendered from the same table that builds its responses.

## Codes

Every code that can reach a client. A test walks the API source and fails when this table and the code disagree in either direction, so a code cannot be invented here or added there without being documented.

## no_endpoint_for_policy is the product working

A 409 with this code means the policy and the request together admit no endpoint, and the router refused to relax either one silently. It is not transient: retrying without changing the request, the policy or the residency fails the same way. The error carries the requested residency, and the trace records why each endpoint was rejected.

## Errors inside a stream

A streaming request that fails after the headers are sent writes the error as a final SSE frame and then the terminator, so a client that follows the format sees a failure instead of a truncated success.

```
data: {"error":{"message":"No endpoint could start the stream.","type":"api_error","code":"upstream_error"}}

data: [DONE]
```