Boomerang

Boomerang, from Baydin Inc, is a productivity software company founded in 2010 that builds email management and meeting scheduling tools. Its products include Boomerang for Gmail and Boomerang for Outlook browser extensions, Boomerang mobile apps for iOS and Android, and GQueues, a task manager for Google Workspace teams. Boomerang lets users schedule email to send later, snooze messages back to the inbox, track responses with read receipts and follow-up reminders, share availability and book meetings without back-and-forth, and use AI writing assistance. With over 2 million active customers, the platform has processed more than 500 million messages. Boomerang is a consumer and team-facing productivity suite delivered as browser extensions and apps rather than a developer API platform; it was surfaced as a portfolio company of 500 Global and added to the API Evangelist network.

Boomerang is profiled on the APIs.io network. Tagged areas include Company, Productivity, Email, Scheduling, and Meetings.

Boomerang’s developer surface includes engineering blog, pricing, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

12.7/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

0 APIs

Company Productivity Email Scheduling Meetings Task Management Gmail Outlook

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 12.7/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 1.4 / 20

Access Clarity 6.3 / 20

Operational Transparency 0.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.0 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/boomerang: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

HelpCenter

HelpCenter

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: boomerang
name: Boomerang
description: Boomerang, from Baydin Inc, is a productivity software company founded in 2010 that builds email management and
  meeting scheduling tools. Its products include Boomerang for Gmail and Boomerang for Outlook browser extensions, Boomerang
  mobile apps for iOS and Android, and GQueues, a task manager for Google Workspace teams. Boomerang lets users schedule email
  to send later, snooze messages back to the inbox, track responses with read receipts and follow-up reminders, share availability
  and book meetings without back-and-forth, and use AI writing assistance. With over 2 million active customers, the platform
  has processed more than 500 million messages. Boomerang is a consumer and team-facing productivity suite delivered as browser
  extensions and apps rather than a developer API platform; it was surfaced as a portfolio company of 500 Global and added
  to the API Evangelist network.
url: https://raw.githubusercontent.com/api-evangelist/boomerang/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://www.boomerangapp.com/assets/images/og-banner.png
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Productivity
- Email
- Scheduling
- Meetings
- Task Management
- Gmail
- Outlook
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/boomerang-domain-security.yml
- type: Website
  url: https://boomerangapp.com
- type: Blog
  url: https://blog.boomerangapp.com/
- type: HelpCenter
  url: https://help.boomeranggmail.com
- type: Pricing
  url: https://www.boomeranggmail.com/subscriptions.html
- type: TermsOfService
  url: https://www.boomeranggmail.com/terms.html
- type: PrivacyPolicy
  url: https://www.boomeranggmail.com/privacy.html
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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