HoneyBook

HoneyBook is an all-in-one clientflow management platform for independent, service-based businesses - photographers, event planners, designers, consultants, coaches, and similar creative entrepreneurs. It combines CRM/lead capture, proposals, contracts and e-signature, invoicing and payments, scheduling, automations, and client communication in one product. HoneyBook does not publish a self-serve public developer API or a developer portal; third-party connectivity is offered through a limited set of native integrations (QuickBooks Online, Zoom, Calendly, Flodesk, Canva, Meta Leads, Slack, Asana, monday.com) and, most broadly, through Zapier. An internal API host (api.honeybook.com) is live and clearly powers the Zapier integration and native connectors, but HoneyBook has never published a self-serve technical reference, OAuth client registration flow, or endpoint documentation for outside developers, and community requests for direct API access date back to at least January 2024 with no roadmap commitment as of this review.

HoneyBook publishes 8 API contracts indexed on the APIs.io network, including Clients API, Contracts API, Invoices API, and 5 more. Tagged areas include CRM, Clientflow, Proposals, Contracts, and Invoicing.

HoneyBook’s developer surface includes authentication, documentation, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

21.1/100 emerging ▼ -8.3 Agent 43/100 agent ready Front door AI 5/6 prominent saas Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0

AccessPaidSelf serve

1 published contract 1 MCP Servers

CRMClientflowProposals Contracts Invoicing Payments SchedulingCreative EntrepreneursSmall Business

What this lets a business do 4

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Customer Relationship Management

BC-420

Clients

GET /clients POST /clients

Financial Management

BC-200

Invoices

POST /projects/{project_id}/invoices

Sales Management

BC-410

Proposals

POST /projects/{project_id}/proposals

Legal Management

BC-150

Contracts

POST /projects/{project_id}/contracts

Kin Score

Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0

Composite quality — 21.1/100 · emerging

Contract Quality 5.5 / 19

Developer Ergonomics 3.6 / 15

Access Clarity 1.2 / 15

Operational Transparency 1.0 / 10

Contract Governance 0.0 / 9

Discoverability 5.1 / 8

Regulatory Posture 2.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 43/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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/honeybook: 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 8

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

HoneyBook Clients API

Clients and inquiries/leads captured through HoneyBook lead forms.

HoneyBook Contracts API

Contracts and e-signature agreements attached to a project.

HoneyBook Invoices API

Invoices issued to clients within a project.

HoneyBook Payments API

Card and ACH payments made against invoices.

HoneyBook Projects API

The visual project pipeline - bookings and pipeline stage.

HoneyBook Proposals API

Combined quote + contract + invoice documents sent to clients.

HoneyBook Scheduler API

Self-service session-type booking (Essentials/Premium plans).

HoneyBook Webhooks API

Modeled event subscription surface mirroring HoneyBook's Zapier triggers.

Scroll for all 8

Open Collections 10

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

API Collection

OPEN COLLECTION

HoneyBook API (Modeled) Clients API

OPEN COLLECTION

HoneyBook API (Modeled) Clients Contracts API

OPEN COLLECTION

HoneyBook API (Modeled) Clients Invoices API

OPEN COLLECTION

HoneyBook API (Modeled) Clients Payments API

OPEN COLLECTION

HoneyBook API (Modeled) Clients Projects API

OPEN COLLECTION

HoneyBook API (Modeled) Clients Proposals API

OPEN COLLECTION

HoneyBook API (Modeled) Clients Scheduler API

OPEN COLLECTION

HoneyBook API (Modeled) Clients Webhooks API

OPEN COLLECTION

HoneyBook API (Modeled)

OPEN COLLECTION

Scroll for all 10

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

HoneyBook MCP Server

Remote MCP server at mcp.api.honeybook.com over HTTP.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Honeybook Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Honeybook Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Honeybook Finops

FINOPS

Security Posture 2

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

Honeybook Authentication

oauth2 · 1 scheme

SECURITY

Honeybook Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Honeybook Scopes

14 scopes · authorizationCode

14 scopes

SCOPES

Agentic Access 1

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

Honeybook Agentic Access

25 operations · 10 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

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

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 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: honeybook
url: https://raw.githubusercontent.com/api-evangelist/honeybook/refs/heads/main/apis.yml
name: HoneyBook
kind: company
description: HoneyBook is an all-in-one clientflow management platform for independent, service-based businesses - photographers,
  event planners, designers, consultants, coaches, and similar creative entrepreneurs. It combines CRM/lead capture, proposals,
  contracts and e-signature, invoicing and payments, scheduling, automations, and client communication in one product. HoneyBook
  does not publish a self-serve public developer API or a developer portal; third-party connectivity is offered through a
  limited set of native integrations (QuickBooks Online, Zoom, Calendly, Flodesk, Canva, Meta Leads, Slack, Asana, monday.com)
  and, most broadly, through Zapier. An internal API host (api.honeybook.com) is live and clearly powers the Zapier integration
  and native connectors, but HoneyBook has never published a self-serve technical reference, OAuth client registration flow,
  or endpoint documentation for outside developers, and community requests for direct API access date back to at least January
  2024 with no roadmap commitment as of this review.
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: 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/honeybook.png
tags:
- CRM
- Clientflow
- Proposals
- Contracts
- Invoicing
- Payments
- Scheduling
- Creative Entrepreneurs
- Small Business
created: '2026-07-04'
modified: '2026-07-04'
specificationVersion: '0.23'
apis:
- aid: honeybook:honeybook-clients-api
  name: HoneyBook Clients API
  description: Clients and inquiries/leads captured through HoneyBook lead forms.
  humanURL: https://help.honeybook.com/en/collections/68941-integrations-and-partnerships
  baseURL: https://api.honeybook.com/v1
  tags:
  - Clients
  properties:
  - type: OpenAPI
    url: openapi/honeybook-clients-api-openapi.yml
  - type: Documentation
    url: https://help.honeybook.com/en/articles/2209205-automate-tasks-with-zapier
  - type: APIClientCollection
    url: collections/honeybook.postman_collection.json
  - type: APIClientCollection
    url: collections/honeybook.opencollection.json
  - type: Documentation
    url: https://www.honeybook.com/online-contracts
  - type: Documentation
    url: https://www.honeybook.com/online-proposals
  - type: Documentation
    url: https://www.honeybook.com/pricing
  - type: Documentation
    url: https://www.honeybook.com/features/scheduling
- aid: honeybook:honeybook-contracts-api
  name: HoneyBook Contracts API
  description: Contracts and e-signature agreements attached to a project.
  humanURL: https://help.honeybook.com/en/collections/68941-integrations-and-partnerships
  baseURL: https://api.honeybook.com/v1
  tags:
  - Contracts
  properties:
  - type: OpenAPI
    url: openapi/honeybook-contracts-api-openapi.yml
  - type: Documentation
    url: https://help.honeybook.com/en/articles/2209205-automate-tasks-with-zapier
  - type: APIClientCollection
    url: collections/honeybook.postman_collection.json
  - type: APIClientCollection
    url: collections/honeybook.opencollection.json
  - type: Documentation
    url: https://www.honeybook.com/online-contracts
  - type: Documentation
    url: https://www.honeybook.com/online-proposals
  - type: Documentation
    url: https://www.honeybook.com/pricing
  - type: Documentation
    url: https://www.honeybook.com/features/scheduling
- aid: honeybook:honeybook-invoices-api
  name: HoneyBook Invoices API
  description: Invoices issued to clients within a project.
  humanURL: https://help.honeybook.com/en/collections/68941-integrations-and-partnerships
  baseURL: https://api.honeybook.com/v1
  tags:
  - Invoices
  properties:
  - type: OpenAPI
    url: openapi/honeybook-invoices-api-openapi.yml
  - type: Documentation
    url: https://help.honeybook.com/en/articles/2209205-automate-tasks-with-zapier
  - type: APIClientCollection
    url: collections/honeybook.postman_collection.json
  - type: APIClientCollection
    url: collections/honeybook.opencollection.json
  - type: Documentation
    url: https://www.honeybook.com/online-contracts
  - type: Documentation
    url: https://www.honeybook.com/online-proposals
  - type: Documentation
    url: https://www.honeybook.com/pricing
  - type: Documentation
    url: https://www.honeybook.com/features/scheduling
- aid: honeybook:honeybook-payments-api
  name: HoneyBook Payments API
  description: Card and ACH payments made against invoices.
  humanURL: https://help.honeybook.com/en/collections/68941-integrations-and-partnerships
  baseURL: https://api.honeybook.com/v1
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/honeybook-payments-api-openapi.yml
  - type: Documentation
    url: https://help.honeybook.com/en/articles/2209205-automate-tasks-with-zapier
  - type: APIClientCollection
    url: collections/honeybook.postman_collection.json
  - type: APIClientCollection
    url: collections/honeybook.opencollection.json
  - type: Documentation
    url: https://www.honeybook.com/online-contracts
  - type: Documentation
    url: https://www.honeybook.com/online-proposals
  - type: Documentation
    url: https://www.honeybook.com/pricing
  - type: Documentation
    url: https://www.honeybook.com/features/scheduling
- aid: honeybook:honeybook-projects-api
  name: HoneyBook Projects API
  description: The visual project pipeline - bookings and pipeline stage.
  humanURL: https://help.honeybook.com/en/collections/68941-integrations-and-partnerships
  baseURL: https://api.honeybook.com/v1
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/honeybook-projects-api-openapi.yml
  - type: Documentation
    url: https://help.honeybook.com/en/articles/2209205-automate-tasks-with-zapier
  - type: APIClientCollection
    url: collections/honeybook.postman_collection.json
  - type: APIClientCollection
    url: collections/honeybook.opencollection.json
  - type: Documentation
    url: https://www.honeybook.com/online-contracts
  - type: Documentation
    url: https://www.honeybook.com/online-proposals
  - type: Documentation
    url: https://www.honeybook.com/pricing
  - type: Documentation
    url: https://www.honeybook.com/features/scheduling
- aid: honeybook:honeybook-proposals-api
  name: HoneyBook Proposals API
  description: Combined quote + contract + invoice documents sent to clients.
  humanURL: https://help.honeybook.com/en/collections/68941-integrations-and-partnerships
  baseURL: https://api.honeybook.com/v1
  tags:
  - Proposals
  properties:
  - type: OpenAPI
    url: openapi/honeybook-proposals-api-openapi.yml
  - type: Documentation
    url: https://help.honeybook.com/en/articles/2209205-automate-tasks-with-zapier
  - type: APIClientCollection
    url: collections/honeybook.postman_collection.json
  - type: APIClientCollection
    url: collections/honeybook.opencollection.json
  - type: Documentation
    url: https://www.honeybook.com/online-contracts
  - type: Documentation
    url: https://www.honeybook.com/online-proposals
  - type: Documentation
    url: https://www.honeybook.com/pricing
  - type: Documentation
    url: https://www.honeybook.com/features/scheduling
- aid: honeybook:honeybook-scheduler-api
  name: HoneyBook Scheduler API
  description: Self-service session-type booking (Essentials/Premium plans).
  humanURL: https://help.honeybook.com/en/collections/68941-integrations-and-partnerships
  baseURL: https://api.honeybook.com/v1
  tags:
  - Scheduler
  properties:
  - type: OpenAPI
    url: openapi/honeybook-scheduler-api-openapi.yml
  - type: Documentation
    url: https://help.honeybook.com/en/articles/2209205-automate-tasks-with-zapier
  - type: APIClientCollection
    url: collections/honeybook.postman_collection.json
  - type: APIClientCollection
    url: collections/honeybook.opencollection.json
  - type: Documentation
    url: https://www.honeybook.com/online-contracts
  - type: Documentation
    url: https://www.honeybook.com/online-proposals
  - type: Documentation
    url: https://www.honeybook.com/pricing
  - type: Documentation
    url: https://www.honeybook.com/features/scheduling
- aid: honeybook:honeybook-webhooks-api
  name: HoneyBook Webhooks API
  description: Modeled event subscription surface mirroring HoneyBook's Zapier triggers.
  humanURL: https://help.honeybook.com/en/collections/68941-integrations-and-partnerships
  baseURL: https://api.honeybook.com/v1
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/honeybook-webhooks-api-openapi.yml
  - type: Documentation
    url: https://help.honeybook.com/en/articles/2209205-automate-tasks-with-zapier
  - type: APIClientCollection
    url: collections/honeybook.postman_collection.json
  - type: APIClientCollection
    url: collections/honeybook.opencollection.json
  - type: Documentation
    url: https://www.honeybook.com/online-contracts
  - type: Documentation
    url: https://www.honeybook.com/online-proposals
  - type: Documentation
    url: https://www.honeybook.com/pricing
  - type: Documentation
    url: https://www.honeybook.com/features/scheduling
common:
- type: CapabilityMap
  url: capabilities/honeybook-capability-edges.yml
  name: HoneyBook Business Capability Map
- type: AgenticAccess
  url: agentic-access/honeybook-agentic-access.yml
- type: DomainSecurity
  url: security/honeybook-domain-security.yml
- type: Authentication
  url: authentication/honeybook-authentication.yml
- type: OAuthScopes
  url: scopes/honeybook-scopes.yml
- type: GitHubOrganization
  url: https://github.com/honeybook
- type: LinkedIn
  url: https://www.linkedin.com/company/honeybook
- type: Website
  url: https://www.honeybook.com
- type: Documentation
  url: https://help.honeybook.com/en/collections/68941-integrations-and-partnerships
- type: Plans
  url: plans/honeybook-plans-pricing.yml
- type: RateLimits
  url: rate-limits/honeybook-rate-limits.yml
- type: FinOps
  url: finops/honeybook-finops.yml
- url: https://www.honeybook.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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