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SendHQ Domains API

Provision sender identities and understand DNS verification state.

SendHQ Domains API is one of 8 APIs that SendHQ publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Domains. The published artifact set on APIs.io includes an OpenAPI specification, an API reference, API documentation, and a getting-started guide.

This API exposes 5 operations across 3 paths, and defines 1 schema. It is described by OpenAPI 3.2.0, at version 2026-08-23.

Requests are made against a single base URL, https://sendhq.cc/api/v1.

5 operations 3 paths 1 schemas 1 DELETE2 GET2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2026-08-23
Base URL
https://sendhq.cc/api/v1
Authentication
HTTP Bearer, API Key
Resource Areas
1

Authentication & Security 2

SendHQ Domains API declares 2 security schemes for authenticating requests. It accepts HTTP bearer tokens (re_…) (bearerAuth). An API key is passed in the cookie as sendhq_session_v2 (sessionCookie).

  • bearerAuth — Workspace API key. Keep it server-side.
  • sessionCookie — Browser session used for account administration.

Paths & Operations 5

Across 3 paths, the API surfaces 5 operations — 1 DELETE, 2 GET, 2 POST. Each is listed below with its method, path, parameters, and response codes.

Domains 5

Provision sender identities and understand DNS verification state.

POST
/domains
Add a sending domain
post_domains body → 201400401404429
GET
/domains
List domains and cached DNS state
get_domains → 200400401404429
GET
/domains/{id}
Retrieve domain setup details
get_domains_id 1 param → 200400401404429
DELETE
/domains/{id}
Delete a domain
delete_domains_id 1 param → 200400401404429
POST
/domains/{id}/verify
Refresh SES and DNS verification
post_domains_id_verify 1 param → 200400401404429

Schemas 1

The contract defines 1 schema that model the data the API accepts and returns. The most detailed is Error (1 property). Each schema is shown below with its type and property counts.

Error
object
1 property 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

sendhq-domains-api-openapi.yml Raw ↑

Other APIs SendHQ publishes across the network.

SendHQ Account and billing API
SendHQ Deliverability API
SendHQ Drafts and attachments API
SendHQ Emails and threads API
SendHQ Hosted templates API
SendHQ Inbound email API
SendHQ REST API
Where this information came from

This is an independent, third-party profile of SendHQ Domains API, 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.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

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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