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 22/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessPaid

1 APIs

Document Processing Document AI Intelligent Document Processing OCR Extraction Classification

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 38.3/100 · thin

Contract Quality 11.4 / 23

Developer Ergonomics 5.4 / 18

Access Clarity 8.5 / 18

Operational Transparency 3.7 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. 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. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

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 11

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

API Collection

OPEN COLLECTION

Extend Batch API

OPEN COLLECTION

Extend Batch Classify API

OPEN COLLECTION

Extend Batch Evaluations API

OPEN COLLECTION

Extend Batch Extract API

OPEN COLLECTION

Extend Batch Files API

OPEN COLLECTION

Extend Batch Parse API

OPEN COLLECTION

Extend Batch Split API

OPEN COLLECTION

Extend Batch Workflow Runs API

OPEN COLLECTION

Extend Batch Workflows API

OPEN COLLECTION

Extend API

OPEN COLLECTION

Scroll for all 11

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

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

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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  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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