Extend

Extend is an intelligent document processing platform that turns documents into high quality, structured data. Its REST API at api.extend.ai exposes parsing, extraction, classification, and splitting processors, durable multi-step workflows, evaluation sets, and batch processing for automating document-heavy operations.

Extend publishes 9 APIs on the APIs.io network, including Batch API, Classify API, Evaluations API, and 6 more. Tagged areas include Document Processing, Document AI, Intelligent Document Processing, OCR, and Extraction.

Extend’s developer surface includes authentication, documentation, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

38.3/100 thin ▬ flat Agent 32/100 agent aware Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

AccessPaidSelf serve

9 APIs

Document Processing Document AI Intelligent Document Processing OCR Extraction Classification

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 38.3/100 · thin

Contract Quality 13.0 / 25

Developer Ergonomics 4.3 / 20

Access Clarity 9.5 / 20

Operational Transparency 4.1 / 13

Contract Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 32/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/extend-ai: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 9

Individual APIs this provider publishes, each with its own machine-readable definition.

Open Collections 11

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Rate Limits 1

Documented rate limits and quota policies.

Extend Ai Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: extend-ai
url: https://raw.githubusercontent.com/api-evangelist/extend-ai/refs/heads/main/apis.yml
name: Extend
kind: company
description: Extend is an intelligent document processing platform that turns documents into high quality, structured data.
  Its REST API at api.extend.ai exposes parsing, extraction, classification, and splitting processors, durable multi-step
  workflows, evaluation sets, and batch processing for automating document-heavy operations.
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/extend-ai.png
tags:
- Document Processing
- Document AI
- Intelligent Document Processing
- OCR
- Extraction
- Classification
created: '2026-06-20'
modified: '2026-06-20'
specificationVersion: '0.23'
apis:
- aid: extend-ai:extend-ai-batch-api
  name: Extend Batch API
  description: The Batch API from Extend — 5 operation(s) for batch.
  humanURL: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  baseURL: https://api.extend.ai
  tags:
  - Batch
  properties:
  - type: OpenAPI
    url: openapi/extend-ai-batch-api-openapi.yml
  - type: Documentation
    url: https://docs.extend.ai/api-quickstart
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  - type: PostmanCollection
    url: collections/extend-ai.postman_collection.json
  - type: OpenCollection
    url: collections/extend-ai.opencollection.json
  - type: Documentation
    url: https://docs.extend.ai/extraction/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/parse-file
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/create-parse-run
  - type: Documentation
    url: https://docs.extend.ai/workflows/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow-run
  - type: Documentation
    url: https://docs.extend.ai/evaluation/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/evaluation/create-evaluation-set
- aid: extend-ai:extend-ai-classify-api
  name: Extend Classify API
  description: The Classify API from Extend — 4 operation(s) for classify.
  humanURL: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  baseURL: https://api.extend.ai
  tags:
  - Classify
  properties:
  - type: OpenAPI
    url: openapi/extend-ai-classify-api-openapi.yml
  - type: Documentation
    url: https://docs.extend.ai/api-quickstart
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  - type: PostmanCollection
    url: collections/extend-ai.postman_collection.json
  - type: OpenCollection
    url: collections/extend-ai.opencollection.json
  - type: Documentation
    url: https://docs.extend.ai/extraction/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/parse-file
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/create-parse-run
  - type: Documentation
    url: https://docs.extend.ai/workflows/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow-run
  - type: Documentation
    url: https://docs.extend.ai/evaluation/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/evaluation/create-evaluation-set
- aid: extend-ai:extend-ai-evaluations-api
  name: Extend Evaluations API
  description: The Evaluations API from Extend — 4 operation(s) for evaluations.
  humanURL: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  baseURL: https://api.extend.ai
  tags:
  - Evaluations
  properties:
  - type: OpenAPI
    url: openapi/extend-ai-evaluations-api-openapi.yml
  - type: Documentation
    url: https://docs.extend.ai/api-quickstart
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  - type: PostmanCollection
    url: collections/extend-ai.postman_collection.json
  - type: OpenCollection
    url: collections/extend-ai.opencollection.json
  - type: Documentation
    url: https://docs.extend.ai/extraction/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/parse-file
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/create-parse-run
  - type: Documentation
    url: https://docs.extend.ai/workflows/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow-run
  - type: Documentation
    url: https://docs.extend.ai/evaluation/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/evaluation/create-evaluation-set
- aid: extend-ai:extend-ai-extract-api
  name: Extend Extract API
  description: The Extract API from Extend — 6 operation(s) for extract.
  humanURL: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  baseURL: https://api.extend.ai
  tags:
  - Extract
  properties:
  - type: OpenAPI
    url: openapi/extend-ai-extract-api-openapi.yml
  - type: Documentation
    url: https://docs.extend.ai/api-quickstart
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  - type: PostmanCollection
    url: collections/extend-ai.postman_collection.json
  - type: OpenCollection
    url: collections/extend-ai.opencollection.json
  - type: Documentation
    url: https://docs.extend.ai/extraction/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/parse-file
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/create-parse-run
  - type: Documentation
    url: https://docs.extend.ai/workflows/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow-run
  - type: Documentation
    url: https://docs.extend.ai/evaluation/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/evaluation/create-evaluation-set
- aid: extend-ai:extend-ai-files-api
  name: Extend Files API
  description: The Files API from Extend — 3 operation(s) for files.
  humanURL: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  baseURL: https://api.extend.ai
  tags:
  - File
  tags_raw:
  - Files
  properties:
  - type: OpenAPI
    url: openapi/extend-ai-files-api-openapi.yml
  - type: Documentation
    url: https://docs.extend.ai/api-quickstart
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  - type: PostmanCollection
    url: collections/extend-ai.postman_collection.json
  - type: OpenCollection
    url: collections/extend-ai.opencollection.json
  - type: Documentation
    url: https://docs.extend.ai/extraction/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/parse-file
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/create-parse-run
  - type: Documentation
    url: https://docs.extend.ai/workflows/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow-run
  - type: Documentation
    url: https://docs.extend.ai/evaluation/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/evaluation/create-evaluation-set
- aid: extend-ai:extend-ai-parse-api
  name: Extend Parse API
  description: The Parse API from Extend — 3 operation(s) for parse.
  humanURL: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  baseURL: https://api.extend.ai
  tags:
  - Parse
  properties:
  - type: OpenAPI
    url: openapi/extend-ai-parse-api-openapi.yml
  - type: Documentation
    url: https://docs.extend.ai/api-quickstart
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  - type: PostmanCollection
    url: collections/extend-ai.postman_collection.json
  - type: OpenCollection
    url: collections/extend-ai.opencollection.json
  - type: Documentation
    url: https://docs.extend.ai/extraction/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/parse-file
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/create-parse-run
  - type: Documentation
    url: https://docs.extend.ai/workflows/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow-run
  - type: Documentation
    url: https://docs.extend.ai/evaluation/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/evaluation/create-evaluation-set
- aid: extend-ai:extend-ai-split-api
  name: Extend Split API
  description: The Split API from Extend — 3 operation(s) for split.
  humanURL: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  baseURL: https://api.extend.ai
  tags:
  - Split
  properties:
  - type: OpenAPI
    url: openapi/extend-ai-split-api-openapi.yml
  - type: Documentation
    url: https://docs.extend.ai/api-quickstart
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  - type: PostmanCollection
    url: collections/extend-ai.postman_collection.json
  - type: OpenCollection
    url: collections/extend-ai.opencollection.json
  - type: Documentation
    url: https://docs.extend.ai/extraction/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/parse-file
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/create-parse-run
  - type: Documentation
    url: https://docs.extend.ai/workflows/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow-run
  - type: Documentation
    url: https://docs.extend.ai/evaluation/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/evaluation/create-evaluation-set
- aid: extend-ai:extend-ai-workflow-runs-api
  name: Extend Workflow Runs API
  description: The Workflow Runs API from Extend — 3 operation(s) for workflow runs.
  humanURL: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  baseURL: https://api.extend.ai
  tags:
  - Workflow Runs
  properties:
  - type: OpenAPI
    url: openapi/extend-ai-workflow-runs-api-openapi.yml
  - type: Documentation
    url: https://docs.extend.ai/api-quickstart
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  - type: PostmanCollection
    url: collections/extend-ai.postman_collection.json
  - type: OpenCollection
    url: collections/extend-ai.opencollection.json
  - type: Documentation
    url: https://docs.extend.ai/extraction/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/parse-file
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/create-parse-run
  - type: Documentation
    url: https://docs.extend.ai/workflows/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow-run
  - type: Documentation
    url: https://docs.extend.ai/evaluation/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/evaluation/create-evaluation-set
- aid: extend-ai:extend-ai-workflows-api
  name: Extend Workflows API
  description: The Workflows API from Extend — 2 operation(s) for workflows.
  humanURL: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  baseURL: https://api.extend.ai
  tags:
  - Workflows
  properties:
  - type: OpenAPI
    url: openapi/extend-ai-workflows-api-openapi.yml
  - type: Documentation
    url: https://docs.extend.ai/api-quickstart
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/file/upload-file
  - type: PostmanCollection
    url: collections/extend-ai.postman_collection.json
  - type: OpenCollection
    url: collections/extend-ai.opencollection.json
  - type: Documentation
    url: https://docs.extend.ai/extraction/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/parse-file
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/parse/create-parse-run
  - type: Documentation
    url: https://docs.extend.ai/workflows/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/workflow/create-workflow-run
  - type: Documentation
    url: https://docs.extend.ai/evaluation/overview
  - type: APIReference
    url: https://docs.extend.ai/api-reference/endpoints/evaluation/create-evaluation-set
common:
- type: AgenticAccess
  url: agentic-access/extend-ai-agentic-access.yml
- type: TrustCenter
  url: security/extend-ai-trust-center.yml
- type: DomainSecurity
  url: security/extend-ai-domain-security.yml
- type: Authentication
  url: authentication/extend-ai-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/extend-ai
- type: Website
  url: https://www.extend.ai
- type: Documentation
  url: https://docs.extend.ai
- type: Plans
  url: plans/extend-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/extend-ai-rate-limits.yml
- type: FinOps
  url: finops/extend-ai-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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