> For the complete documentation index, see [llms.txt](https://docs.toucan.earth/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.toucan.earth/toucan/carbon-bridge/puro-carbon-bridge.md).

# Puro Carbon Bridge

Our Puro carbon bridge enables the tokenization, detokenization, and retirement of CO2 removal certificates (CORCs) issued by Puro.earth. We have developed the first two-way bridge that integrates with the Puro Connect API, providing a streamlined and secure way to move assets between the Puro Registry and the blockchain.

## Use Cases

The Puro carbon bridge is beneficial for various market participants:

* **Project Developers**: Projects that are issued Puro CORCs can tokenize their assets to take advantage of increased market efficiencies available onchain. For example, selling assets into a Toucan carbon pool offers instant settlement 24/7 with clear pricing signals. This process is faster than managing an OTC deal and can potentially offer higher prices.
* **Brokers**: Brokers can source credits onchain and bring them offchain, or vice versa. Some market participants may also pursue arbitrage opportunities that exist between the onchain and offchain prices.
* **Climate Entrepreneurs**: New use cases for carbon removal credits are emerging onchain. These projects can use Toucan's bridge to tokenize (or detokenize) carbon removal credits for their initiatives, leveraging the benefits of blockchain for climate action.

## Requirements to Bridge

To bring carbon removal credits over the Puro carbon bridge, you'll need the following:

1. **Puro.earth Account**: You must have access to a Puro.earth account. If you'd like to tokenize, you also must hold CORCs in the Puro Registry. Visit the [Puro website](https://puro.earth/) for details.
2. **Blockchain/Web3 Wallet**: In the case of tokenization, ensure you have the address of a wallet where you want the tokenized CORCs to be sent. The wallet must be compatible with our supported networks (Base, Polygon, and Celo). For detokenization, you must control a wallet that holds Puro TCO2 tokens.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.toucan.earth/toucan/carbon-bridge/puro-carbon-bridge.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.