# Exchange

Changeblock offers three marketplaces for three different usecases:

| Marketplace | Client                                                                                  | Functionality                                                                                                                                                 | Link                                                                                                                                   |
| ----------- | --------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- |
| Business    | Businesses of any size, from SME to enterprise and transnational                        | Purchase credits across a range of categories including carbon, plastic and maritime. You can also directly offset on the platform. Payable in fiat currency. | [business](https://docs.changeblock.com/changeblock-documentation/solutions/environmental-attributes/exchange/business "mention")      |
| Retail      | Retail users looking to offset personal emissions with fiat currency                    | Purchase credits, retire them, generate offset certificates, community features.                                                                              | [retail](https://docs.changeblock.com/changeblock-documentation/solutions/environmental-attributes/exchange/retail "mention")          |
| web3        | web3 natives that wish to purchase (or offset using) tokenised environmental attributes | Entirely smart-contract based marketplace for buying or bidding on tokenised environmental attributes. Accessible with all major webwallets.                  | [web3-offsetting](https://docs.changeblock.com/changeblock-documentation/solutions/environmental-attributes/web3-offsetting "mention") |


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# Agent Instructions: 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:

```
GET https://docs.changeblock.com/changeblock-documentation/solutions/environmental-attributes/exchange.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.