Session-authenticated workspace administration.
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openapi: 3.2.0
info:
title: SendHQ Account and billing API
version: '2026-08-23'
description: Send and receive expected email, manage verified domains and hosted templates, and inspect delivery outcomes.
servers:
- url: https://sendhq.cc/api/v1
tags:
- name: Account and billing
description: Session-authenticated workspace administration.
paths:
/profile:
get:
operationId: get_profile
tags:
- Account and billing
summary: Retrieve account, usage, and subscription state
description: Retrieve account, usage, and subscription state
security:
- sessionCookie: []
parameters: []
responses:
'200':
description: Successful response
content:
application/json:
schema:
type: object
properties:
user:
type: object
properties: {}
required: []
additionalProperties: false
usage:
type: object
properties: {}
required: []
additionalProperties: false
access:
type: object
properties: {}
required: []
additionalProperties: false
reputation:
type: object
properties: {}
required: []
additionalProperties: false
billing:
type: object
properties: {}
required: []
additionalProperties: false
plans:
type: array
items: {}
required:
- user
- usage
- access
- reputation
- billing
- plans
additionalProperties: false
example:
user: {}
usage: {}
access: {}
reputation: {}
billing: {}
plans: []
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
'429':
$ref: '#/components/responses/RateLimited'
/billing/checkout:
post:
operationId: post_billing_checkout
tags:
- Account and billing
summary: Create a hosted checkout session
description: Create a hosted checkout session
security:
- sessionCookie: []
parameters: []
responses:
'200':
description: Successful response
content:
application/json:
schema:
type: object
properties:
url:
type: string
format: uri
session_id:
type: string
required:
- url
- session_id
additionalProperties: false
example:
url: https://checkout.example/…
session_id: …
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
'429':
$ref: '#/components/responses/RateLimited'
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
plan_key:
type: string
required:
- plan_key
additionalProperties: false
example:
plan_key: indie_hackers
/billing/portal:
post:
operationId: post_billing_portal
tags:
- Account and billing
summary: Create a billing portal session
description: Create a billing portal session
security:
- sessionCookie: []
parameters: []
responses:
'200':
description: Successful response
content:
application/json:
schema:
type: object
properties:
url:
type: string
format: uri
required:
- url
additionalProperties: false
example:
url: https://billing.example/…
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
'429':
$ref: '#/components/responses/RateLimited'
/keys:
post:
operationId: post_keys
tags:
- Account and billing
summary: Create an API key
description: Create an API key
security:
- sessionCookie: []
parameters: []
responses:
'201':
description: Successful response
content:
application/json:
schema:
type: object
properties:
id:
type: string
name:
type: string
key:
type: string
prefix:
type: string
required:
- id
- name
- key
- prefix
additionalProperties: false
example:
id: key_…
name: Production
key: re_…
prefix: re_…
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
'429':
$ref: '#/components/responses/RateLimited'
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
name:
type: string
required:
- name
additionalProperties: false
example:
name: Production
get:
operationId: get_keys
tags:
- Account and billing
summary: List API-key metadata
description: List API-key metadata
security:
- sessionCookie: []
parameters: []
responses:
'200':
description: Successful response
content:
application/json:
schema:
type: object
properties:
data:
type: array
items: {}
count:
type: integer
required:
- data
- count
additionalProperties: false
example:
data: []
count: 0
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
'429':
$ref: '#/components/responses/RateLimited'
/keys/{id}:
delete:
operationId: delete_keys_id
tags:
- Account and billing
summary: Revoke an API key
description: Revoke an API key
security:
- sessionCookie: []
parameters:
- name: id
in: path
required: true
schema:
type: string
responses:
'200':
description: Successful response
content:
application/json:
schema:
type: object
properties:
ok:
type: boolean
required:
- ok
additionalProperties: false
example:
ok: true
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
'429':
$ref: '#/components/responses/RateLimited'
components:
schemas:
Error:
type: object
required:
- error
properties:
error:
type: object
required:
- message
- status
properties:
message:
type: string
status:
type: integer
code:
type:
- string
- 'null'
responses:
Unauthorized:
description: Missing or invalid authentication
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
RateLimited:
description: A usage or reputation limit was reached
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
BadRequest:
description: Invalid request
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
NotFound:
description: Resource not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
securitySchemes:
bearerAuth:
type: http
scheme: bearer
bearerFormat: re_…
description: Workspace API key. Keep it server-side.
sessionCookie:
type: apiKey
in: cookie
name: sendhq_session_v2
description: Browser session used for account administration.