API & docs

A small, well-mannered API.

Most teams never need it. The ones that do — provisioning, multi-tenant control, custom analytics — find it predictable and boring, in the best way.

Authentication

API keys, OAuth 2.0 and SCIM tokens.

REST API

/v2 reference for signatures, templates, users and campaigns.

Webhooks

Realtime events for clicks, deployments, approvals.

SCIM provisioning

Sync users from Okta, Azure AD, Google Workspace.

CLI

mail-brand CLI for CI/CD pipelines.

Quickstart · Create a signaturePOST /v2/signatures

curl https://api.mail-brand.com/v2/signatures \
  -H "Authorization: Bearer $MAILBRAND_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "userId": "u_8a2f",
    "templateId": "tpl_executive_v3",
    "fields": { "title": "Head of Brand" }
  }'

99.99%

API uptime · 90d

84ms

Median p95 latency

SDK languages

Email signatures, finally treated as the brand asset they are.

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