aid: climacell
name: Climacell
description: >-
  Climacell (styled ClimaCell) was a Boston-based weather-intelligence startup that pioneered a "Weather of Things"
  approach — deriving hyperlocal precipitation and atmospheric conditions from wireless-signal attenuation, connected
  devices, and its own proprietary numerical weather model — and exposed it through a developer-facing REST weather API.
  Backed by Canaan Partners among others, the company rebranded to Tomorrow.io in 2020 and its legacy climacell.co
  domain now 301-redirects to www.tomorrow.io. The surviving product is the Tomorrow.io v4 Weather API, which
  supersedes the original ClimaCell v3 API and exposes 60+ hyperlocal data layers (core weather, air quality, pollen,
  fire, flood, lightning, maritime, aviation, road) with realtime, forecast, historical, map-tile, and webhook-alert
  access. This profile is the historical ClimaCell identity; the enriched, live provider record lives in the
  api-evangelist tomorrow-io repository.
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.tomorrow.io/favicon-32x32.png
humanURL: https://www.climacell.co
url: https://raw.githubusercontent.com/api-evangelist/climacell/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-status: rebranded
x-former-name: ClimaCell
x-successor: tomorrow-io
x-successor-name: Tomorrow.io
x-legacy-domain: climacell.co
x-live-domain: tomorrow.io
x-backed-by:
- canaan-partners
x-tier: stub
x-tier-reason: portfolio-lead-rebranded
tags:
- Weather
- Forecast
- Climate
- Weather Intelligence
- Air Quality
- Precipitation
- Weather of Things
- Geospatial
- Risk
- Alerts
kind: contract
access: 3rd-Party
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
apis: []
common:
- url: security/climacell-domain-security.yml
  type: DomainSecurity
- url: packages/climacell-packages.yml
  type: Packages
- url: https://www.tomorrow.io
  type: Portal
  x-note: legacy climacell.co redirects here (successor Tomorrow.io)
- url: https://docs.tomorrow.io
  type: Documentation
  x-note: successor Tomorrow.io developer docs
- url: https://docs.tomorrow.io/reference/welcome
  type: APIReference
  x-note: successor Tomorrow.io API reference
- url: https://docs.tomorrow.io/reference/getting-started
  type: GettingStarted
  x-note: successor Tomorrow.io
- url: https://app.tomorrow.io/signup
  type: SignUp
  x-note: successor Tomorrow.io
- url: https://www.tomorrow.io/pricing/
  type: Pricing
  x-note: successor Tomorrow.io
- url: https://www.tomorrow.io/blog/
  type: Blog
  x-note: successor Tomorrow.io
- url: https://support.tomorrow.io
  type: Support
  x-note: successor Tomorrow.io
- url: https://www.tomorrow.io/legal/tos/
  type: TermsOfService
  x-note: successor Tomorrow.io
- url: https://www.tomorrow.io/legal/privacy-policy/
  type: PrivacyPolicy
  x-note: successor Tomorrow.io
- url: https://github.com/Tomorrow-IO-API
  type: GitHubOrganization
  x-note: successor Tomorrow.io
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence