Search and filter across 11,000+ carbon credit projects from 6 major registries (Verra, Gold Standard, CAR, ACR, Isometric, Puro Earth).
Pagination: Use current_page and per_page to paginate through results.
Default page size is 100, maximum is 200.
Filtering: Filter by registry, country, category, status, project type,
and credit ranges (issued_min, issued_max, retired_min, retired_max).
Sorting: Use the sort parameter with field names prefixed by + (ascending)
or - (descending). Example: sort=-issued to sort by most issued credits.
Search: Use search for case-insensitive search on project_id and name fields.
Beneficiary search: Use beneficiary_search to find projects where a specific
buyer/beneficiary has retired credits.
Each project in the response includes associated news clips and a computed
unretired field (issued minus retired).
Case insensitive search string. Currently searches on project_id and name fields only.
Page number
x >= 1Items per page
1 <= x <= 200List of sorting parameters in the format field_name or +field_name for ascending order or -field_name for descending order.
Registry name
verra, gold-standard, american-carbon-registry, climate-action-reserve, art-trees, isometric, puro-earth, plan-vivo, none Country name
Protocol name
Category name
Whether project is an ARB project
Format: YYYY-MM-DD
Format: YYYY-MM-DD
Minimum number of issued credits
Maximum number of issued credits
Minimum number of retired credits
Maximum number of retired credits
Project type
Project proponent/developer name
UN SDG goals (1-17). Multiple values = AND filter (must have ALL selected goals)
Specific certification labels (e.g., ccb-gold, ccb-biodiversity-gold, corsia). Multiple values = OR filter
Puro.earth CORC durability (100+ or 1000+). Multiple values = OR filter
Has CCB (Climate, Community & Biodiversity) certification
Has ICVCM Core Carbon Principles certification
CORSIA eligible
Has SD VISta certification
Has Social Carbon certification
Authorized under Paris Agreement Article 6
Article 6 authorization types: NDC Use, Intl mitigation purposes, Other purposes
Case insensitive search string. Currently searches on specified beneficiary_search_fields only.
Beneficiary fields to search in. Valid fields are: retirement_beneficiary_harmonized, retirement_beneficiary, retirement_beneficiary_account, retirement_beneficiary_note, retirement_beneficiary_reason