apicheats.dev anthropic/llms.txt Raw .md
GET

GET /v1/files — Claude API

Anthropic API key (required); https://api.anthropic.com

Claude API

List Files

Base URL
https://api.anthropic.com
Auth
x-api-key: <ANTHROPIC_API_KEY>
Last verified
2026-10-20 · upstream hash matched
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Critical gotchas

Authentication uses the x-api-key header and requests also require an anthropic-version header.

The official OpenAPI URL is discovered from the SDK repository manifest and must remain under Anthropic's trusted Stainless storage prefix.

cURL

curl -X GET 'https://api.anthropic.com/v1/files?page=example-page&ids%5B%5D=example&limit=20' \  -H "x-api-key: $ANTHROPIC_API_KEY" \  -H 'anthropic-version: 2023-06-01'

Parameters

Name In Type Required Description
page query string No Opaque page cursor returned in a prior list response's `next_page`. Prefixed `page_`.
ids[] query string[] No Restrict the result set to Files whose `id` is in this list. At most 100 entries (after de-duplication). Mutually exclusive with `page` and `limit`. When supplied, the response is always a single page (`next_page` is null). IDs that do not resolve to a visible File — including deleted Files — are silently omitted.
limit query integer No Number of items to return per page. Defaults to `20`. Ranges from `1` to `1000`.

Response 200 OK

{
  "data": [
    {
      "created_at": "2026-09-03T00:00:00Z",
      "downloadable": false,
      "expires_at": null,
      "filename": "string",
      "id": "string",
      "mime_type": "string",
      "size_bytes": 0,
      "type": "string"
    }
  ],
  "next_page": "string"
}
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