Climatiq
Climatiq is an API-first carbon footprint calculation engine for developers and sustainability teams.

Wren (Marketplace): Wren is a climate action platform to calculate, reduce, and offset your carbon footprint via monthly subscriptions. Pricing: from from $14/mo (based on footprint). (data verified July 2026)
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Wren is a climate action platform that helps individuals, businesses, and philanthropists calculate, reduce, and offset their carbon footprint. Instead of one-off donations, you pay a recurring monthly fee based on your lifestyle emissions, which goes directly to vetted climate solutions like reforestation, renewable energy, and biochar production.
Ideal for eco-conscious individuals who want measurable, recurring climate impact, teams looking for a simple employee offset program, and philanthropists crafting tax-deductible giving strategies. It's less suited for those seeking a one-time offset without ongoing commitment.
A frequent flyer uses Wren to offset flight emissions each month. A small business enrolls employees in a team offset program to meet sustainability goals. A donor uses a donor-advised fund through Wren to support high-impact carbon removal projects.
Editorial score from our review methodology — not user ratings.
Wren pricing: from $14/mo (based on footprint). Billing model: Subscription.
Starts at $14/mo, based on your carbon footprint calculated via the quiz. Includes monthly offset subscription, impact dashboard, personalized reduction tips, and project updates. Free carbon calculator included.
Custom pricing. Includes custom portfolios, API integrations, 1% for the Planet certification, and team offset management. Contact Wren for a quote.
Custom pricing. Includes donor-advised fund giving, stock donations, and tax-deductible options. Contact Wren for details.
No free trial or free plan mentioned in the scraped data.
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