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Extend Files API

The Files API from Extend — 3 operation(s) for files.

Extend Files API is one of 9 APIs that Extend publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Files. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 4 operations across 3 paths, and defines 2 schemas. It is described by OpenAPI 3.0.1, at version 2026-02-09.

Requests are made against a single base URL, https://api.extend.ai.

4 operations 3 paths 2 schemas 1 DELETE2 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.1
API Version
2026-02-09
Base URL
https://api.extend.ai
Authentication
HTTP Bearer
Terms of Service
Resource Areas
1

Authentication & Security 1

Extend Files API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (BearerAuth). By default, every request must be authenticated.

  • BearerAuth — Provide your Extend API token as a Bearer token in the Authorization header.

Paths & Operations 4

Across 3 paths, the API surfaces 4 operations — 1 DELETE, 2 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Files 4
POST
/files/upload
Upload a file
uploadFile 2 params body → 200default
GET
/files
List files
listFiles 3 params → 200default
GET
/files/{id}
Get a file
getFile 2 params → 200default
DELETE
/files/{id}
Delete a file
deleteFile 2 params → 200default

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed are File (9 properties), ApiError (4 properties). Each schema is shown below with its type and property counts.

ApiError
object
4 properties
File
object
9 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

extend-ai-files-api-openapi.yml Raw ↑

Other APIs Extend publishes across the network.

Extend Batch API
Extend Classify API
Extend Evaluations API
Extend Extract API
Extend Parse API
Extend Split API
Extend Workflow Runs API
Extend Workflows API