Contractbook

Contractbook is a contract lifecycle management (CLM) platform that turns static contracts into structured, automatable data. Its Public API v3 (base https://api.contractbook.com/v3, Bearer API-key auth) lets teams generate pre-filled contract drafts from any data source, send documents for electronic signature, manage templates, organize documents into spaces, run automations, upload attachments, and receive webhook notifications on document life-cycle events. Contractbook covers the full contract lifecycle - drafting, negotiation, signing, storage, and post-signature management - for legal, sales, HR, and procurement teams.

Contractbook publishes 6 APIs on the APIs.io network, including Attachments API, Automations API, Document sharing API, and 3 more. Tagged areas include Contract Management, CLM, Contract Lifecycle, Legal, and eSignature.

Contractbook’s developer surface includes authentication, documentation, engineering blog, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

37.2/100 thin ▬ flat Agent 41/100 agent ready Full breakdown ↓
scored 2026-08-03 · rubric v0.9

AccessPaidSelf serve

7 APIs

Contract ManagementCLMContract LifecycleLegaleSignatureContractsDocument AutomationLegalTech

Kin Score

Kin Score How this is scored →
scored 2026-08-03 · rubric v0.9

Composite quality — 37.2/100 · thin

Contract Quality 13.4 / 25

Developer Ergonomics 4.3 / 20

Commercial Clarity 7.9 / 20

Operational Transparency 4.1 / 13

Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 41/100 · agent ready

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 8 / 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/contractbook: 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 7

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

Contractbook Document Webhooks

Contractbook's document life-cycle notification (webhook) mechanism. When a document is created, updated, or signed, Contractbook sends an HTTP request to a client-configured ca...

Contractbook Attachments API

The Attachments API from Contractbook — 1 operation(s) for attachments.

Contractbook Automations API

The Automations API from Contractbook — 2 operation(s) for automations.

Contractbook Document sharing API

The Document sharing API from Contractbook — 1 operation(s) for document sharing.

Contractbook Documents API

The Documents API from Contractbook — 5 operation(s) for documents.

Contractbook Spaces API

The Spaces API from Contractbook — 2 operation(s) for spaces.

Contractbook Templates API

The Templates API from Contractbook — 2 operation(s) for templates.

Scroll for all 7

Open Collections 1

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

Contractbook API v3

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Contractbook Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Contractbook Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Contractbook Finops

FINOPS

Security Posture 1

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

Contractbook Authentication

http · 1 scheme

SECURITY

Agentic Access 1

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

Contractbook Agentic Access

16 operations · 9 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 1

Authentication, authorization, and security posture

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

SupportCenter

SupportCenter

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: contractbook
url: https://raw.githubusercontent.com/api-evangelist/contractbook/refs/heads/main/apis.yml
name: Contractbook
kind: company
description: Contractbook is a contract lifecycle management (CLM) platform that turns static contracts into structured, automatable
  data. Its Public API v3 (base https://api.contractbook.com/v3, Bearer API-key auth) lets teams generate pre-filled contract
  drafts from any data source, send documents for electronic signature, manage templates, organize documents into spaces,
  run automations, upload attachments, and receive webhook notifications on document life-cycle events. Contractbook covers
  the full contract lifecycle - drafting, negotiation, signing, storage, and post-signature management - for legal, sales,
  HR, and procurement teams.
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/contractbook.png
tags:
- Contract Management
- CLM
- Contract Lifecycle
- Legal
- eSignature
- Contracts
- Document Automation
- LegalTech
created: '2026-07-11'
modified: '2026-07-11'
specificationVersion: '0.19'
apis:
- aid: contractbook:contractbook-document-webhooks
  name: Contractbook Document Webhooks
  tags:
  - Webhooks
  - Notifications
  - Events
  - CLM
  - Contract Lifecycle
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://api.contractbook.com/v3/docs#section/Use-cases/Scenario-7.-Receiving-notifications-for-document-life-cycle-events
  baseURL: https://api.contractbook.com/v3
  properties:
  - url: https://api.contractbook.com/v3/docs
    type: Documentation
  - url: webhooks/contractbook-webhooks.yml
    type: Webhooks
  description: Contractbook's document life-cycle notification (webhook) mechanism. When a document is created, updated, or
    signed, Contractbook sends an HTTP request to a client-configured callback URL, letting integrations react to contract
    state changes instead of polling. Webhook payloads are unauthenticated by default; an access_token query parameter can
    be added to the callback URL, and recipients are advised to confirm state via an authenticated GET /documents/{id} call.
    Webhook subscriptions are configured in Contractbook rather than through documented CRUD endpoints in the Public API v3
    OpenAPI, so this API is honestly modeled from the documented notification behavior.
- aid: contractbook:contractbook-attachments-api
  name: Contractbook Attachments API
  description: The Attachments API from Contractbook — 1 operation(s) for attachments.
  humanURL: https://api.contractbook.com/v3/docs
  baseURL: https://api.contractbook.com/v3
  tags:
  - Attachments
  properties:
  - type: OpenAPI
    url: openapi/contractbook-attachments-api-openapi.yml
  - type: Documentation
    url: https://api.contractbook.com/v3/docs
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20documents
  - type: PostmanCollection
    url: collections/contractbook.postman_collection.json
  - type: OpenCollection
    url: collections/contractbook.opencollection.json
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20templates
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Share%20a%20document
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20automations
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20space%20tree
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Upload%20an%20attachment
- aid: contractbook:contractbook-automations-api
  name: Contractbook Automations API
  description: The Automations API from Contractbook — 2 operation(s) for automations.
  humanURL: https://api.contractbook.com/v3/docs
  baseURL: https://api.contractbook.com/v3
  tags:
  - Automations
  properties:
  - type: OpenAPI
    url: openapi/contractbook-automations-api-openapi.yml
  - type: Documentation
    url: https://api.contractbook.com/v3/docs
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20documents
  - type: PostmanCollection
    url: collections/contractbook.postman_collection.json
  - type: OpenCollection
    url: collections/contractbook.opencollection.json
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20templates
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Share%20a%20document
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20automations
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20space%20tree
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Upload%20an%20attachment
- aid: contractbook:contractbook-document-sharing-api
  name: Contractbook Document sharing API
  description: The Document sharing API from Contractbook — 1 operation(s) for document sharing.
  humanURL: https://api.contractbook.com/v3/docs
  baseURL: https://api.contractbook.com/v3
  tags:
  - Document sharing
  properties:
  - type: OpenAPI
    url: openapi/contractbook-document-sharing-api-openapi.yml
  - type: Documentation
    url: https://api.contractbook.com/v3/docs
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20documents
  - type: PostmanCollection
    url: collections/contractbook.postman_collection.json
  - type: OpenCollection
    url: collections/contractbook.opencollection.json
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20templates
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Share%20a%20document
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20automations
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20space%20tree
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Upload%20an%20attachment
- aid: contractbook:contractbook-documents-api
  name: Contractbook Documents API
  description: The Documents API from Contractbook — 5 operation(s) for documents.
  humanURL: https://api.contractbook.com/v3/docs
  baseURL: https://api.contractbook.com/v3
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/contractbook-documents-api-openapi.yml
  - type: Documentation
    url: https://api.contractbook.com/v3/docs
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20documents
  - type: PostmanCollection
    url: collections/contractbook.postman_collection.json
  - type: OpenCollection
    url: collections/contractbook.opencollection.json
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20templates
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Share%20a%20document
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20automations
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20space%20tree
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Upload%20an%20attachment
- aid: contractbook:contractbook-spaces-api
  name: Contractbook Spaces API
  description: The Spaces API from Contractbook — 2 operation(s) for spaces.
  humanURL: https://api.contractbook.com/v3/docs
  baseURL: https://api.contractbook.com/v3
  tags:
  - Spaces
  properties:
  - type: OpenAPI
    url: openapi/contractbook-spaces-api-openapi.yml
  - type: Documentation
    url: https://api.contractbook.com/v3/docs
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20documents
  - type: PostmanCollection
    url: collections/contractbook.postman_collection.json
  - type: OpenCollection
    url: collections/contractbook.opencollection.json
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20templates
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Share%20a%20document
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20automations
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20space%20tree
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Upload%20an%20attachment
- aid: contractbook:contractbook-templates-api
  name: Contractbook Templates API
  description: The Templates API from Contractbook — 2 operation(s) for templates.
  humanURL: https://api.contractbook.com/v3/docs
  baseURL: https://api.contractbook.com/v3
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/contractbook-templates-api-openapi.yml
  - type: Documentation
    url: https://api.contractbook.com/v3/docs
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20documents
  - type: PostmanCollection
    url: collections/contractbook.postman_collection.json
  - type: OpenCollection
    url: collections/contractbook.opencollection.json
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20templates
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Share%20a%20document
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20list%20of%20automations
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Get%20a%20space%20tree
  - type: APIReference
    url: https://api.contractbook.com/v3/docs#/operations/Upload%20an%20attachment
common:
- type: AgenticAccess
  url: agentic-access/contractbook-agentic-access.yml
- type: Authentication
  url: authentication/contractbook-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/contractbook
- type: Website
  url: https://contractbook.com
- type: Documentation
  url: https://api.contractbook.com/v3/docs
- type: SupportCenter
  url: https://support.contractbook.com
- type: Plans
  url: plans/contractbook-plans-pricing.yml
- type: RateLimits
  url: rate-limits/contractbook-rate-limits.yml
- type: FinOps
  url: finops/contractbook-finops.yml
- url: https://contractbook.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Where this information came from

This is an independent, third-party profile of Contractbook, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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