aid: mailpace
url: https://raw.githubusercontent.com/api-evangelist/mailpace/refs/heads/main/apis.yml
name: MailPace
kind: company
description: MailPace is a fast, privacy-focused transactional email API for developers.
  It delivers application email - password resets, receipts, notifications - over a
  simple HTTPS REST API and SMTP, with DKIM-verified sending domains, Ed25519-signed
  webhooks, and EU-based hosting.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Email
- Transactional Email
- Messaging
- SMTP
- Privacy
created: '2026-06-20'
modified: '2026-06-20'
specificationVersion: '0.19'
apis:
- aid: mailpace:mailpace-send-email-api
  name: MailPace Send Email API
  tags:
  - Email
  - Send
  - Transactional Email
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.mailpace.com/reference/send/
  baseURL: https://app.mailpace.com/api/v1
  properties:
  - url: https://docs.mailpace.com/reference/send/
    type: Documentation
  - url: https://docs.mailpace.com/reference/overview/
    type: APIReference
  - url: openapi/mailpace-openapi.yml
    type: OpenAPI
  description: Sends a transactional email via POST /send using the MailPace-Server-Token
    header. Supports HTML and text bodies, cc/bcc, reply-to, attachments, tags, and
    up to 50 recipients per request.
- aid: mailpace:mailpace-domains-api
  name: MailPace Domains API
  tags:
  - Domains
  - DKIM
  - Verification
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.mailpace.com/reference/domains/
  baseURL: https://app.mailpace.com/api/v1
  properties:
  - url: https://docs.mailpace.com/reference/domains/
    type: Documentation
  - url: https://docs.mailpace.com/reference/overview/
    type: APIReference
  - url: openapi/mailpace-openapi.yml
    type: OpenAPI
  description: Manages sending domains and their API tokens with the MailPace-Organization-Token
    header - create, list, update, and DKIM/DNS verify domains, and create or revoke
    per-domain API tokens.
- aid: mailpace:mailpace-webhooks-api
  name: MailPace Webhooks API
  tags:
  - Webhooks
  - Events
  - Ed25519
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.mailpace.com/guide/webhooks/
  baseURL: https://app.mailpace.com/api/v1
  properties:
  - url: https://docs.mailpace.com/guide/webhooks/
    type: Documentation
  - url: review.yml
    type: Review
  description: Delivers outbound, Ed25519-signed event callbacks (email.queued, email.delivered,
    email.deferred, email.bounced, email.spam) to your endpoints. Configured per domain
    in the MailPace dashboard; the public verification key is exposed on the domain
    object.
common:
- type: GitHubOrganization
  url: https://github.com/mailpace
- type: LinkedIn
  url: https://www.linkedin.com/company/mailpace
- type: Website
  url: https://mailpace.com
- type: Documentation
  url: https://docs.mailpace.com
- type: Plans
  url: plans/mailpace-plans-pricing.yml
- type: RateLimits
  url: rate-limits/mailpace-rate-limits.yml
- type: FinOps
  url: finops/mailpace-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com