danny-avila/LibreChat · error · Error

No endpoint provided

Error message

No endpoint provided

What it means

filterFile() throws this at process.js:1336 when endpoint is missing from req.body on a non-avatar upload. The endpoint field (e.g. 'openAI', 'azureOpenAI', 'assistants') drives which endpointFileConfig is selected for size/type limits via getEndpointFileConfig. Without it the service cannot choose the correct policy, so it refuses the upload.

Source

Thrown at api/server/services/Files/process.js:1337

function filterFile({ req, image, isAvatar }) {
  const { file } = req;
  const { endpoint, endpointType, file_id, width, height } = req.body;

  if (!file_id && !isAvatar) {
    throw new Error('No file_id provided');
  }

  if (file.size === 0) {
    throw new Error('Empty file uploaded');
  }

  /* parse to validate api call, throws error on fail */
  if (!isAvatar) {
    isUUID.parse(file_id);
  }

  if (!endpoint && !isAvatar) {
    throw new Error('No endpoint provided');
  }

  const appConfig = req.config;
  const fileConfig = mergeFileConfig(appConfig.fileConfig);

  const endpointFileConfig = getEndpointFileConfig({
    endpoint,
    fileConfig,
    endpointType,
  });
  const fileSizeLimit =
    isAvatar === true ? fileConfig.avatarSizeLimit : endpointFileConfig.fileSizeLimit;

  if (file.size > fileSizeLimit) {
    throw new Error(
      `File size limit of ${fileSizeLimit / megabyte} MB exceeded for ${
        isAvatar ? 'avatar upload' : `${endpoint} endpoint`
      }`,

View on GitHub (pinned to 5ff282f900)

Solutions

1. Include endpoint in the upload body, set to the active conversation endpoint key.
2. Verify the value matches an endpoint registered in your librechat.yaml / fileConfig endpoints.
3. If you intended an avatar upload, ensure isAvatar semantics are used via the /files/avatar route, not /files.

Example fix

// before
form.append('file_id', id);
// after
form.append('file_id', id);
form.append('endpoint', currentEndpoint); // e.g. 'openAI'

const VALID_ENDPOINTS = ['openAI','azureOpenAI','bingAI','chatGPTBrowser','anthropic','google','assistants','gptPlugins'];
function assertEndpoint(body) {
  if (!VALID_ENDPOINTS.includes(body.endpoint)) {
    throw new Error(`endpoint missing or unknown: ${body.endpoint}`);
  }
}

const hasEndpoint = (body) => typeof body?.endpoint === 'string' && body.endpoint.length > 0;

When it happens

Trigger: POST /api/files or POST /api/files/images whose body omits endpoint, or sends it under endpointType only. The check fires after file_id and UUID validation pass, so you only reach it for otherwise well-formed payloads.

Common situations: Client refactored to send only the model name and dropped the endpoint field. A new endpoint value that the client derives at runtime but fails to set on a particular screen. Avatar uploads are exempt, so misclassifying a non-avatar call as an avatar call also surfaces this elsewhere.

Related errors

• No file_id provided
• File size limit of ${fileSizeLimit / megabyte} MB exceeded f
• Unsupported file type
• Empty file uploaded
• No width provided

AI-assisted analysis of danny-avila/LibreChat@5ff282f900 (2026-08-12). Data as JSON: /api/errors/b591d3c09db9465f. Report an issue: GitHub.