Extend website screenshot

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
37.9/100 thin ▬ flat Agent 34/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessPaidSelf serve
9 APIs
Document ProcessingDocument AIIntelligent Document ProcessingOCRExtractionClassification

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 37.9/100 · thin
Contract Quality 13.0 / 25
Developer Ergonomics 3.9 / 20
Commercial Clarity 9.5 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 34/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
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.

Extend Batch API

The Batch API from Extend — 5 operation(s) for batch.

Extend Classify API

The Classify API from Extend — 4 operation(s) for classify.

Extend Evaluations API

The Evaluations API from Extend — 4 operation(s) for evaluations.

Extend Extract API

The Extract API from Extend — 6 operation(s) for extract.

Extend Files API

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

Extend Parse API

The Parse API from Extend — 3 operation(s) for parse.

Extend Split API

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

Extend Workflow Runs API

The Workflow Runs API from Extend — 3 operation(s) for workflow runs.

Extend Workflows API

The Workflows API from Extend — 2 operation(s) for workflows.

Scroll for all 9

Open Collections 1

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

Extend API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Extend Ai Plans Pricing

3 plans

PLANS

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.

Extend Ai Finops

FINOPS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Extend Ai Authentication

http · 1 scheme

SECURITY

Extend Ai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Extend Ai Trust Center

SOC 2, HIPAA, GDPR

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Extend Ai Agentic Access

41 operations · 25 acting

41 operations · 25 acting

AGENTIC

Resources

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
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
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: '0.19'
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:
  - 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