Not a documented public API. HoneyBook's contract/e-signature feature (part of what it markets as an "agreement" within a project) has no published developer reference. Modeled here as list/create/retrieve operations scoped to a project, mirroring how contracts are exposed in the product UI; endpoint paths and field names are an honest, unverified model rather than a confirmed API.
openapi: 3.0.3
info:
title: HoneyBook API (Modeled)
description: >-
HoneyBook does not publish a self-serve public developer API or a public
API reference. This document models the logical resource surface implied
by HoneyBook's product (clients/leads, projects, contracts, proposals,
invoices, payments, scheduler sessions) and by the trigger/action events
exposed through its Zapier integration (New Client, New Inquiry, Project
Booked, Payment Received, Project Stage Changed). An internal API host,
https://api.honeybook.com, is live behind Cloudflare and clearly backs
HoneyBook's own web/mobile apps and its native integrations, but
HoneyBook has never published endpoint documentation, a client
registration/OAuth flow, or a field dictionary for outside developers.
Third-party integration guides (e.g. Rollout) reference an OAuth 2.0 flow
against api.honeybook.com and a `/v1/` base path, but are inconsistent
with each other on the exact token endpoint and grant type, and are not
independently verifiable - treat every path, parameter, and schema below
as an honest, sourced-but-unverified model, not a confirmed reference.
Confirm directly with HoneyBook before attempting integration.
version: '1.0-modeled'
contact:
name: HoneyBook
url: https://www.honeybook.com
externalDocs:
description: HoneyBook integrations and partnerships help center
url: https://help.honeybook.com/en/collections/68941-integrations-and-partnerships
servers:
- url: https://api.honeybook.com/v1
description: Modeled base path (unverified; not publicly documented by HoneyBook)
security:
- oauth2: []
tags:
- name: Clients
description: Clients and inquiries/leads captured through HoneyBook lead forms.
- name: Projects
description: The visual project pipeline - bookings and pipeline stage.
- name: Contracts
description: Contracts and e-signature agreements attached to a project.
- name: Proposals
description: Combined quote + contract + invoice documents sent to clients.
- name: Invoices
description: Invoices issued to clients within a project.
- name: Payments
description: Card and ACH payments made against invoices.
- name: Scheduler
description: Self-service session-type booking (Essentials/Premium plans).
- name: Webhooks
description: Modeled event subscription surface mirroring HoneyBook's Zapier triggers.
paths:
/clients:
get:
operationId: listClients
tags: [Clients]
summary: List clients and inquiries
description: >-
Modeled from the "New Client" and "New Inquiry" Zapier triggers.
Not a confirmed HoneyBook endpoint.
parameters:
- name: page
in: query
schema:
type: integer
default: 1
- name: status
in: query
description: Filter by lead status (e.g. inquiry, client).
schema:
type: string
responses:
'200':
description: A page of clients/inquiries.
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/Client'
'401':
$ref: '#/components/responses/Unauthorized'
post:
operationId: createClient
tags: [Clients]
summary: Create a client or inquiry
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/ClientInput'
responses:
'201':
description: The created client.
content:
application/json:
schema:
$ref: '#/components/schemas/Client'
'401':
$ref: '#/components/responses/Unauthorized'
'422':
$ref: '#/components/responses/ValidationError'
/clients/{id}:
parameters:
- $ref: '#/components/parameters/Id'
get:
operationId: getClient
tags: [Clients]
summary: Retrieve a client
responses:
'200':
description: The requested client.
content:
application/json:
schema:
$ref: '#/components/schemas/Client'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
patch:
operationId: updateClient
tags: [Clients]
summary: Update a client
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/ClientInput'
responses:
'200':
description: The updated client.
content:
application/json:
schema:
$ref: '#/components/schemas/Client'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
/projects:
get:
operationId: listProjects
tags: [Projects]
summary: List projects
parameters:
- name: stage
in: query
description: Filter by pipeline stage.
schema:
type: string
responses:
'200':
description: A page of projects.
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/Project'
'401':
$ref: '#/components/responses/Unauthorized'
post:
operationId: createProject
tags: [Projects]
summary: Create a project
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/ProjectInput'
responses:
'201':
description: The created project.
content:
application/json:
schema:
$ref: '#/components/schemas/Project'
'401':
$ref: '#/components/responses/Unauthorized'
'422':
$ref: '#/components/responses/ValidationError'
/projects/{id}:
parameters:
- $ref: '#/components/parameters/Id'
get:
operationId: getProject
tags: [Projects]
summary: Retrieve a project
description: >-
Modeled from the "Project Booked" and "Project Stage Changed" Zapier
triggers.
responses:
'200':
description: The requested project.
content:
application/json:
schema:
$ref: '#/components/schemas/Project'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
patch:
operationId: updateProject
tags: [Projects]
summary: Update a project (e.g. change pipeline stage)
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/ProjectInput'
responses:
'200':
description: The updated project.
content:
application/json:
schema:
$ref: '#/components/schemas/Project'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
/projects/{project_id}/contracts:
parameters:
- $ref: '#/components/parameters/ProjectId'
get:
operationId: listContracts
tags: [Contracts]
summary: List contracts for a project
responses:
'200':
description: A list of contracts.
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/Contract'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
post:
operationId: createContract
tags: [Contracts]
summary: Create a contract for a project
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/ContractInput'
responses:
'201':
description: The created contract.
content:
application/json:
schema:
$ref: '#/components/schemas/Contract'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
'422':
$ref: '#/components/responses/ValidationError'
/contracts/{id}:
parameters:
- $ref: '#/components/parameters/Id'
get:
operationId: getContract
tags: [Contracts]
summary: Retrieve a contract
responses:
'200':
description: The requested contract.
content:
application/json:
schema:
$ref: '#/components/schemas/Contract'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
/projects/{project_id}/proposals:
parameters:
- $ref: '#/components/parameters/ProjectId'
get:
operationId: listProposals
tags: [Proposals]
summary: List proposals for a project
responses:
'200':
description: A list of proposals.
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/Proposal'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
post:
operationId: createProposal
tags: [Proposals]
summary: Create a proposal (quote + contract + invoice) for a project
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/ProposalInput'
responses:
'201':
description: The created proposal.
content:
application/json:
schema:
$ref: '#/components/schemas/Proposal'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
'422':
$ref: '#/components/responses/ValidationError'
/proposals/{id}:
parameters:
- $ref: '#/components/parameters/Id'
get:
operationId: getProposal
tags: [Proposals]
summary: Retrieve a proposal
responses:
'200':
description: The requested proposal.
content:
application/json:
schema:
$ref: '#/components/schemas/Proposal'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
/projects/{project_id}/invoices:
parameters:
- $ref: '#/components/parameters/ProjectId'
get:
operationId: listInvoices
tags: [Invoices]
summary: List invoices for a project
responses:
'200':
description: A list of invoices.
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/Invoice'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
post:
operationId: createInvoice
tags: [Invoices]
summary: Create an invoice for a project
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/InvoiceInput'
responses:
'201':
description: The created invoice.
content:
application/json:
schema:
$ref: '#/components/schemas/Invoice'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
'422':
$ref: '#/components/responses/ValidationError'
/invoices/{id}:
parameters:
- $ref: '#/components/parameters/Id'
get:
operationId: getInvoice
tags: [Invoices]
summary: Retrieve an invoice
responses:
'200':
description: The requested invoice.
content:
application/json:
schema:
$ref: '#/components/schemas/Invoice'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
/payments:
get:
operationId: listPayments
tags: [Payments]
summary: List payments
description: >-
Modeled from the "Payment Received" Zapier trigger, which fires on
any successfully paid client payment, manual or automatic.
parameters:
- name: invoice_id
in: query
schema:
type: string
responses:
'200':
description: A list of payments.
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/Payment'
'401':
$ref: '#/components/responses/Unauthorized'
/payments/{id}:
parameters:
- $ref: '#/components/parameters/Id'
get:
operationId: getPayment
tags: [Payments]
summary: Retrieve a payment
responses:
'200':
description: The requested payment.
content:
application/json:
schema:
$ref: '#/components/schemas/Payment'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
/scheduler/session-types:
get:
operationId: listSessionTypes
tags: [Scheduler]
summary: List bookable session types
description: >-
Scheduler is available on Essentials and Premium plans (unlimited
session types); Starter is capped at one live session type.
responses:
'200':
description: A list of session types.
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/SessionType'
'401':
$ref: '#/components/responses/Unauthorized'
/scheduler/bookings:
get:
operationId: listBookings
tags: [Scheduler]
summary: List scheduled bookings
responses:
'200':
description: A list of bookings.
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/Booking'
'401':
$ref: '#/components/responses/Unauthorized'
post:
operationId: createBooking
tags: [Scheduler]
summary: Create a booking against a session type's availability
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/BookingInput'
responses:
'201':
description: The created booking.
content:
application/json:
schema:
$ref: '#/components/schemas/Booking'
'401':
$ref: '#/components/responses/Unauthorized'
'422':
$ref: '#/components/responses/ValidationError'
/webhooks:
get:
operationId: listWebhooks
tags: [Webhooks]
summary: List webhook subscriptions
description: >-
Not a confirmed HoneyBook capability - modeled for completeness to
mirror the five events HoneyBook exposes only as Zapier triggers
(New Client, New Inquiry, Project Booked, Payment Received, Project
Stage Changed). No public webhook subscription endpoint is
documented by HoneyBook.
responses:
'200':
description: A list of webhook subscriptions.
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/Webhook'
'401':
$ref: '#/components/responses/Unauthorized'
post:
operationId: createWebhook
tags: [Webhooks]
summary: Subscribe to an event
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/WebhookInput'
responses:
'201':
description: The created webhook subscription.
content:
application/json:
schema:
$ref: '#/components/schemas/Webhook'
'401':
$ref: '#/components/responses/Unauthorized'
'422':
$ref: '#/components/responses/ValidationError'
/webhooks/{id}:
parameters:
- $ref: '#/components/parameters/Id'
delete:
operationId: deleteWebhook
tags: [Webhooks]
summary: Delete a webhook subscription
responses:
'200':
description: Deletion confirmation.
content:
application/json:
schema:
$ref: '#/components/schemas/DeleteResponse'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
components:
securitySchemes:
oauth2:
type: oauth2
description: >-
Third-party integration guides reference OAuth 2.0 against
api.honeybook.com, but are inconsistent on the exact token endpoint
and grant type and are not independently verifiable. Modeled here as
an authorization-code flow with refresh tokens, the most common
pattern for a user-data platform of this kind; treat as unverified.
flows:
authorizationCode:
authorizationUrl: https://api.honeybook.com/oauth/authorize
tokenUrl: https://api.honeybook.com/oauth/token
scopes:
clients.read: Read clients and inquiries.
clients.write: Create and update clients and inquiries.
projects.read: Read projects and pipeline stage.
projects.write: Create and update projects.
contracts.read: Read contracts.
contracts.write: Create contracts.
proposals.read: Read proposals.
proposals.write: Create proposals.
invoices.read: Read invoices.
invoices.write: Create invoices.
payments.read: Read payments.
scheduler.read: Read session types and bookings.
scheduler.write: Create bookings.
webhooks.write: Manage webhook subscriptions.
parameters:
Id:
name: id
in: path
required: true
description: The unique identifier of the resource.
schema:
type: string
ProjectId:
name: project_id
in: path
required: true
description: The unique identifier of the parent project.
schema:
type: string
responses:
Unauthorized:
description: Missing or invalid access token.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
NotFound:
description: The requested resource was not found.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
ValidationError:
description: The request payload failed validation.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
schemas:
Error:
type: object
properties:
error:
type: object
properties:
code:
type: string
message:
type: string
DeleteResponse:
type: object
properties:
id:
type: string
deleted:
type: boolean
ClientInput:
type: object
required:
- name
- email
properties:
name:
type: string
email:
type: string
format: email
phone:
type: string
status:
type: string
enum: [inquiry, client]
Client:
allOf:
- $ref: '#/components/schemas/ClientInput'
- type: object
properties:
id:
type: string
created_at:
type: string
format: date-time
ProjectInput:
type: object
required:
- name
- client_id
properties:
name:
type: string
client_id:
type: string
stage:
type: string
description: Pipeline stage, e.g. Inquiry, Booked, Completed.
Project:
allOf:
- $ref: '#/components/schemas/ProjectInput'
- type: object
properties:
id:
type: string
booked:
type: boolean
booked_at:
type: string
format: date-time
ContractInput:
type: object
required:
- title
properties:
title:
type: string
content:
type: string
Contract:
allOf:
- $ref: '#/components/schemas/ContractInput'
- type: object
properties:
id:
type: string
project_id:
type: string
status:
type: string
enum: [draft, sent, signed]
signed_at:
type: string
format: date-time
ProposalInput:
type: object
required:
- title
properties:
title:
type: string
line_items:
type: array
items:
type: object
properties:
description:
type: string
amount:
type: number
Proposal:
allOf:
- $ref: '#/components/schemas/ProposalInput'
- type: object
properties:
id:
type: string
project_id:
type: string
status:
type: string
enum: [draft, sent, accepted]
InvoiceInput:
type: object
required:
- amount_due
properties:
amount_due:
type: number
due_date:
type: string
format: date
line_items:
type: array
items:
type: object
properties:
description:
type: string
amount:
type: number
Invoice:
allOf:
- $ref: '#/components/schemas/InvoiceInput'
- type: object
properties:
id:
type: string
project_id:
type: string
status:
type: string
enum: [draft, sent, paid, overdue]
Payment:
type: object
properties:
id:
type: string
invoice_id:
type: string
amount:
type: number
method:
type: string
enum: [card, ach, manual]
status:
type: string
enum: [succeeded, pending, failed]
paid_at:
type: string
format: date-time
SessionType:
type: object
properties:
id:
type: string
name:
type: string
duration_minutes:
type: integer
BookingInput:
type: object
required:
- session_type_id
- start_time
properties:
session_type_id:
type: string
client_id:
type: string
start_time:
type: string
format: date-time
Booking:
allOf:
- $ref: '#/components/schemas/BookingInput'
- type: object
properties:
id:
type: string
status:
type: string
enum: [scheduled, cancelled, completed]
WebhookInput:
type: object
required:
- event
- target_url
properties:
event:
type: string
enum:
- client.created
- inquiry.created
- project.booked
- payment.paid
- project.stage_changed
target_url:
type: string
format: uri
Webhook:
allOf:
- $ref: '#/components/schemas/WebhookInput'
- type: object
properties:
id:
type: string