# Wren API ## With the Wren API, you can build tools, plugins, and apps on-top of Wren's portfolio of vetted carbon offset projects. # Offset carbon with a single line of code ``` $ curl https://www.wren.co/api/offset-orders \ -u [api_token]: -d tons=0.5 $ curl https://www.wren.co/api/project-orders \ -u [api_token]: -d projectId=123 -d amountInUsdCents=2500 ``` ### Step 1 #### Create an account We associate offset impact to this Wren account ### Step 2 #### Add a payment method In order to use the API, we will need to add a credit card to pay for offsets you place through it. We do not charge per request, only when you offset CO2. ### Step 3 #### Start using the API Dynamically offset any amount of carbon using our portfolio of projects [See our API documentation](https://www.wren.co/docs/api) # Explore a few of the projects we fund ### Carbon Removal Alliance This project advances policies that support a diverse set of permanent, high-quality carbon removal technologies. More → ### Tech-enabled rainforest protection Help indigenous communities protect their Amazon rainforest home by funding satellite imagery, drones and monitoring tools. More → ### Clean cookstoves in East Africa This project reduces greenhouse gas emissions by transitioning households and businesses in East Africa from charcoal to clean alternatives, decreasing the reliance on non-renewable fuels. More → ### Underground biomass storage This project dries and compresses biomass into dense blocks of carbon and stores them underground. More → ### Enhanced weathering on rice paddies This project spreads crushed rock on rice paddies in India, permanently removing CO₂ from the atmosphere and supporting smallholder farmers. More → ### Enhanced rock weathering This project spreads crushed silicate rocks such as basalt on agricultural land, speeding up the Earth’s natural weathering cycle, and permanently removing carbon from the atmosphere. More → ### Carbon Gap This project advances policies that maximize Europe’s contribution to the rapid and responsible global scale-up of carbon dioxide removal (CDR) needed for effective climate change mitigation. More → ### Adipic acid nitrous oxide abatement Help prevent highly-poluting nitrous oxide emissions from plastic production. More → ### Improved forest management in Maine This project removes carbon dioxide from the atmosphere by partnering with private forest owners to help them keep their forests growing for longer. More → ### Landfill methane abatement This project avoids the emission of methane (CH₄), a greenhouse gas 28× more potent than carbon dioxide (CO₂). More → ### Biochar carbon removal Help prevent California wildfires, while locking up carbon for thousands of years. More → ### Forest resilience against wildfires This project restores and protects forests, watersheds, ecosystems, and communities in the Western United States. More → ### Mangrove planting in Myanmar This project reforests degraded mangrove ecosystems in Myanmar’s Ayeyarwady Division. More → ### Refrigerant destruction Help find and destroy dangerous CFC-12 refrigerants before they leak into the atmosphere. More → ## Third-party verification backs up every offset. #### Wren Climate, PBC Take real, effective climate action with Wren’s all-in-one climate platform.