v17 (latest stable)
Status
Live
June 4, 2025
Summary
v17 is primarily focused on improving the stability and performance of order processing. It includes a few breaking changes from v16 (highlighted below).
Release notes
General
Removed
network
query parameter from the following endpoints. Default network isPolygon
.GET
/activities
GET
/carbonProjects
GET
/carbonProjects/:id
GET
/categories
GET
/countries
GET
/listings/:id
GET
/listings
GET
/purchases/:id
GET
/purchases
GET
/prices
GET
/retirements
GET
/retirements/:id
GET
/retirements/:id/provenance
GET
/vintages
Endpoints updated
GET /carbonProjects
[⚠️BREAKING CHANGE] Response entries are now paginated
Added a block_long_description field that contains a project description in PortableText format
GET /carbonProjects/:id
Added a block_long_description field that contains a project description in PortableText format
Endpoints added
GET /assessors
Returns the list of known project assessors (related to project verification and validation)
GET /developers
Returns the list of known project developers
GET /retirements/:beneficiaryAddress/:retirementIndex
Get retirement details for a completed retirement order. This replaces the endpoint that was present in previous versions (see Endpoints removed below)
GET /retirements/:beneficiaryAddress/:retirementIndex/provenance
Get the credit provenance history leading up to a completed retirement. This replaces the
/provenance
endpoint that was present in previous versions (see Endpoints removed below)
Endpoints removed
GET /retirements/:hash
[⚠️BREAKING CHANGE] This endpoint was removed because a transaction hash may now include more than one retirement. It has been replaced by
/retirements/:beneficiaryAddress/:retirementIndex
. See Endpoints added for more info. See migration path for alternatives.
GET /retirements/:hash/provenance
[⚠️BREAKING CHANGE] This endpoint was removed because a transaction hash may now include more than one retirement. It has been replaced by
/retirements/:beneficiaryAddress/:retirementIndex
. See Endpoints added for more info. See migration path for alternatives.
Migration Path
Carbon Projects endpoint
The
/carbonProjects
endpoint is now paginated. Your UI or system may need to be refactored to consume pages, rather than a complete list of projects. The project data is now provided in the items attribute of the response.
Retirement endpoints
If you were using the GET
/retirements/:hash
and GET/retirements/:hash/provenance
you should now use the new endpoints:GET
/retirements/:beneficiaryAddress/:retirementIndex
GET
/retirements/:beneficiaryAddress/:retirementIndex/provenance
If you only have the transaction hash you can still use the hash to filter on the GET
/retirements
endpoint, which returns a list.Example using hash to filter: https://v17.api.carbonmark.com/retirements?hash=0x7b63b79d25c76b6f179360ebd5f9f3c2435d3fdf2dda7e1d3ab43cf4f90e4a04
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