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Extend Split API

The Split API from Extend — 3 operation(s) for split.

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

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

This API exposes 3 operations across 3 paths, and defines 9 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.

3 operations 3 paths 9 schemas 1 GET2 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 Split 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 3

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

Split 3
POST
/split
Split a file (synchronous)
splitFile 1 param body → 200default
POST
/split_runs
Create a split run (asynchronous)
createSplitRun 1 param body → 200default
GET
/split_runs/{id}
Get a split run
getSplitRun 2 params → 200default

Schemas 9

The contract defines 9 schemas that model the data the API accepts and returns. The most detailed are ProcessorRun (11 properties), SplitRequest (4 properties), ApiError (4 properties), FileFromUrl (3 properties). Each schema is shown below with its type and property counts.

FileInput
RunMetadata
object
Custom metadata for a run, up to 10KB.
FileFromUrl
object
3 properties 1 required
RunStatus
string
ProcessorRun
object
11 properties
FileFromId
object
1 property 1 required
SplitRequest
object
4 properties 1 required
FileFromText
object
1 property 1 required
ApiError
object
4 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

extend-ai-split-api-openapi.yml Raw ↑

Other APIs Extend publishes across the network.

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