aid: pinger
name: Pinger
description: 'Pinger, Inc. is a San Jose, California mobile communications company founded
  in 2005 by former Palm managers Greg Woock and Joe Sipher. It builds consumer and small-business
  calling and texting apps rather than developer infrastructure: TextFree (launched 2009, the
  original free texting and calling app with a free US phone number), Sideline (a second phone
  number for work and privacy, with team number sharing, spam filtering, auto-reply and voicemail
  transcription) and Index (a dedicated business line with auto-reply, scheduling, broadcast
  messaging and payment collection). Sideline and TextFree have together been used by more than
  100 million people. Pinger publishes no public developer program, API reference, OpenAPI
  definition or SDK — its integrations run the other way, with Index consuming third-party
  calendar (Google, iCloud, Outlook) and payment (PayPal, Venmo, Square) services. The one
  machine-readable artifact it publishes is an llms.txt information sheet on the Sideline domain.'
url: https://raw.githubusercontent.com/api-evangelist/pinger/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
image: https://www.pinger.com/wp-content/uploads/2021/11/pinger_new@2x-277x300.png
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-26'
modified: '2026-08-26'
tags:
- Company
- Communications
- Telecommunications
- Messaging
- SMS
- Voice
- Mobile Applications
- Phone Numbers
- Consumer Applications
- Small Business
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/pinger-domain-security.yml
- type: Website
  url: https://www.pinger.com/
- type: About
  url: https://www.pinger.com/about/
- type: Support
  url: https://www.pinger.com/support/
- type: HelpCenter
  url: https://support.sideline.com/hc/en-us
- type: TermsOfService
  url: https://www.pinger.com/terms-and-conditions/
- type: PrivacyPolicy
  url: https://www.pinger.com/privacy-policy/
- type: Product
  url: https://textfree.com/
- type: Product
  url: https://www.sideline.com/
- type: Product
  url: https://getindex.com/
- type: LLMsTxt
  url: llms/pinger-sideline-llms.txt
- type: Plans
  url: plans/pinger-plans-pricing.yml
- type: RateLimits
  url: rate-limits/pinger-rate-limits.yml
x-enrichment:
  date: '2026-08-26'
  status: minimal
  artifacts_added: 6
  pass: local-v1
x-coverage:
  state: none
  reason: no-developer-program
  detail: >-
    Pinger ships only end-user apps (TextFree, Sideline, Index) - there is no developer site
    (developer.pinger.com and docs.pinger.com do not resolve in DNS), and api.pinger.com is a
    retired or private mobile-app backend that 302s its root to the marketing site and returns
    410 Gone for every path probed.
  evidence:
  - url: https://api.pinger.com/v1/
    status: 410
  - url: https://www.pinger.com/openapi.json
    status: 404
  - url: https://www.pinger.com/.well-known/api-catalog
    status: 404
  - url: https://www.sideline.com/llms.txt
    status: 200
  checked: '2026-08-26'