{"license":"CC-BY-4.0","licenseUrl":"https://creativecommons.org/licenses/by/4.0/","attribution":"ChainChoice (https://chainchoice.io)","category":"carbon_credits","evidenceReadAt":"2026-09-28","generatedAt":"2026-11-12","criteria":[{"id":"registry_serial_link","label":"Registry serial traceability","weight":32},{"id":"retirement_finality","label":"Retirement finality at the registry","weight":26},{"id":"vintage_methodology","label":"Vintage and methodology disclosure","weight":22},{"id":"price_vs_offchain","label":"Price against comparable credits","weight":20}],"providers":{"toucan_protocol":{"registry_serial_link":{"s":5,"q":"Currently, we support TCO2s for two different carbon registries | string projectId; | string registry;","u":"https://docs.toucan.earth/developers/smart-contracts/tco2.md","d":"2026-09-28"},"retirement_finality":{"s":8,"q":"Retirements performed on Toucan will be synced with the Puro Registry. | It typically takes 2-3 business days for a retirement to finalize. | You may also download the certificate as a PDF.","u":"https://docs.toucan.earth/toucan/retire-credits.md","d":"2026-09-28"},"vintage_methodology":{"s":8,"q":"string methodology; | bool isCorsiaCompliant; | bool isCCPcompliant; | string name; // the vintage year","u":"https://docs.toucan.earth/developers/smart-contracts/tco2.md","d":"2026-09-28"},"price_vs_offchain":{"s":8,"q":"\"biochar\":{\"usd\":203.3 | \"toucan-protocol-base-carbon-tonne\":{\"usd\":0.00270894","u":"https://api.coingecko.com/api/v3/simple/price?ids=toucan-protocol-base-carbon-tonne,toucan-protocol-nature-carbon-tonne,biochar,moss-carbon-credit,klima-dao,regen&vs_currencies=usd&include_market_cap=true&include_24hr_vol=true&include_last_updated_at=true","d":"2026-09-28"}},"klima_protocol":{"registry_serial_link":{"s":1,"q":"These tokens do not confer ownership rights, redemption rights, or claims on protocol-handled carbon, and do not represent investment interests.","u":"https://whitepaper.klimaprotocol.com/","d":"2026-09-28"},"retirement_finality":{"s":4,"q":"Sells carbon retirement certificates by burning kVCM | Carbon credits handled by the protocol cannot be withdrawn, transferred, or resold.","u":"https://whitepaper.klimaprotocol.com/","d":"2026-09-28"},"vintage_methodology":{"s":8,"q":"\"registry\":\"UCR\",\"vintage\":2021,\"projectId\":\"150\",\"projectKey\":\"UCR-150\",\"creditId\":\"UCR-150-2021\",\"projectName\":\"27.65 MW Wind Power Project by NSL Renewable Power Private Limited in Karnataka\",\"country\":\"India\",\"region\":\"Asia\",\"category\":\"Renewable Energy\",\"methodologies\":[\"ACM0002\"] |…","u":"https://x402.klimalabs.com/api/discover","d":"2026-09-28"},"price_vs_offchain":{"s":8,"q":"\"name\":\"Biochar\",\"category\":\"Biochar\",\"country\":\"Brazil\",\"region\":\"South America\",\"methodologies\":[\"C03000000\"],\"isRegistered\":true,\"priceUsdcPerTonne\":\"87782758\",\"priceUsdcPerTonneFormatted\":\"87.782758\"","u":"https://x402.klimalabs.com/api/discover","d":"2026-09-28"}},"carbonmark":{"registry_serial_link":{"s":6,"q":"\"key\":\"VCS-1764\",\"projectID\":\"1764\" | \"url\":\"https://registry.verra.org/app/projectDetail/VCS/1764\"","u":"https://api.carbonmark.com/carbonProjects?category=Blue%20Carbon","d":"2026-09-28"},"retirement_finality":{"s":6,"q":"The Carbonmark API is multi-network aware and supports carbon credit discovery, pricing, orders, and retirements across Polygon and Base. | Access public retirement records and certificates | Klima Protocol carbon class liquidity, pricing, retirements, and public retirement records","u":"https://docs.carbonmark.com/carbonmark-api/readme.md","d":"2026-09-28"},"vintage_methodology":{"s":7,"q":"\"methodologies\":[{\"id\":\"AR-AM0014\",\"category\":\"Blue Carbon\",\"name\":\"Afforestation and reforestation of degraded mangrove habitats\",\"sector\":null}],\"vintages\":[\"2020\",\"20200615\"],\"registry\":\"VCS\"","u":"https://api.carbonmark.com/carbonProjects?category=Blue%20Carbon","d":"2026-09-28"},"price_vs_offchain":{"s":8,"q":"Price per tonne: From $929.20 Tonnes available: 9.100 | Price per tonne: From $6.95 Tonnes available: 69,026.282 | Price per tonne: $19.50 | Price per tonne: $11.05","u":"https://www.carbonmark.com/","d":"2026-09-28"}},"c3":{"registry_serial_link":{"s":2,"q":"C3 has access to all the existing Carbon Registries (namely ACR, CAR, Plan Vivo, Verra and Gold Standard). | However, the output is a UBO and NBO (Universal Based Offset and Nature Base Offset).","u":"https://docs.c3.app/","d":"2026-09-28"},"retirement_finality":{"s":2,"q":"AMMs allow digital assets to be traded without permission and automatically","u":"https://docs.c3.app/the-basics/carbon-pools","d":"2026-09-28"},"vintage_methodology":{"s":8,"q":"Vintage of 2014 onwards. | all VCS and GS methodologies characterized as NCS, including REDD+, IFM, and those with VCS or GS certification utilizing CDM-based forestry methodologies such as AR-AM0014","u":"https://docs.c3.app/c3-pool-specifications-and-carbon-methodologies/nbo","d":"2026-09-28"},"price_vs_offchain":{"s":1,"q":"{\"coins\":{}}","u":"https://coins.llama.fi/prices/current/polygon:0x2b3ecb0991af0498ece9135bcd04013d7993110c,polygon:0x6BCa3B77C1909Ce1a4Ba1A20d1103bDe8d222E48","d":"2026-09-28"}},"moss_mco2":{"registry_serial_link":{"s":2,"q":"CNAME Cross-User Banned | The host is configured as a CNAME across accounts on Cloudflare","u":"https://mco2token.moss.earth/","d":"2026-09-28"},"retirement_finality":{"s":2,"q":"Connection timed out | Error code 522","u":"https://moss.earth/","d":"2026-09-28"},"vintage_methodology":{"s":2,"q":"eth_call name() on MCO2 0xfc98e825a2264d890f9a1e68ed50e1526abccacd at Ethereum block 26,074,908 returns 'Moss Carbon Credit' and totalSupply() returns 2789330677756627123382104; eth_call name() on 0xAa7DbD1598251f856C12f63557A4C4397c253Cea at Polygon block 94,587,186 returns 'Moss Carbon Credit…","u":"https://api.coingecko.com/api/v3/simple/price?ids=toucan-protocol-base-carbon-tonne,toucan-protocol-nature-carbon-tonne,moss-carbon-credit,klima-dao,regen&vs_currencies=usd&include_market_cap=true&include_24hr_vol=true&include_last_updated_at=true","d":"2026-09-28"},"price_vs_offchain":{"s":2,"q":"\"moss-carbon-credit\":{\"usd\":0.00869037","u":"https://api.coingecko.com/api/v3/simple/price?ids=toucan-protocol-base-carbon-tonne,toucan-protocol-nature-carbon-tonne,moss-carbon-credit,klima-dao,regen&vs_currencies=usd&include_market_cap=true&include_24hr_vol=true&include_last_updated_at=true","d":"2026-09-28"}},"regen_network":{"registry_serial_link":{"s":8,"q":"{\"tradable_amount\":\"0\",\"retired_amount\":\"20\",\"cancelled_amount\":\"0\"}","u":"https://rest.cosmos.directory/regen/regen/ecocredit/v1/batches/C01-001-20150101-20151231-001/supply","d":"2026-09-28"},"retirement_finality":{"s":9,"q":"{\"tradable_amount\":\"0\",\"retired_amount\":\"20\",\"cancelled_amount\":\"0\"}","u":"https://rest.cosmos.directory/regen/regen/ecocredit/v1/batches/C01-001-20150101-20151231-001/supply","d":"2026-09-28"},"vintage_methodology":{"s":7,"q":"\"schema:name\":\"Methodology Proposal for Soil Organic Carbon Estimation in Regenerative Cropping and Managed Grassland Ecosystems\",\"schema:version\":\"V1.1\",\"schema:identifier\":\"ecometric-0044\"","u":"https://api.regen.network/data/v2/metadata-graph/regen:13toVgBs6FCuyDebxKFWf5cJQZipWkrN6zZNhPeGBjfnqBFmhTbxj9u.rdf","d":"2026-09-28"},"price_vs_offchain":{"s":8,"q":"\"batch_denom\":\"C06-003-20230101-20240101-001\",\"quantity\":\"4051\",\"ask_denom\":\"uusdc\",\"ask_amount\":\"65000000\" | \"batch_denom\":\"C02-003-20200630-20220629-001\",\"quantity\":\"200\",\"ask_denom\":\"ibc/334740505537E9894A64E8561030695016481830D7B36E6A9B6D13C608B55653\",\"ask_amount\":\"40000000\"","u":"https://rest.cosmos.directory/regen/regen/ecocredit/marketplace/v1/sell-orders?pagination.limit=200","d":"2026-09-28"}},"thallo":{"registry_serial_link":{"s":5,"q":"Information about the project, vintage, serial numbers, and other details are stored on-chain in the Thallo bridge.","u":"https://www.thallo.io/litepaper-thallos-two-way-carbon-bridge/","d":"2026-09-28"},"retirement_finality":{"s":7,"q":"The bridge enables credit retirements to be performed on-chain while also being reflected on the underlying registry. | to avoid double accounting","u":"https://www.thallo.io/litepaper-thallos-two-way-carbon-bridge/","d":"2026-09-28"},"vintage_methodology":{"s":5,"q":"Information about the project, vintage, serial numbers, and other details are stored on-chain in the Thallo bridge.","u":"https://www.thallo.io/litepaper-thallos-two-way-carbon-bridge/","d":"2026-09-28"},"price_vs_offchain":{"s":5,"q":"On the demand-side, we charge a flat and transparent transaction fee, depending on the subscription.","u":"https://www.thallo.io/faq/","d":"2026-09-28"}},"open_forest_protocol":{"registry_serial_link":{"s":3,"q":"It lives on a blockchain - the NEAR Blockchain to be specific - and it contains within it the ID of the project that it was created on behalf of.","u":"https://www.openforestprotocol.org/blog/the-first-open-carbon-credit-has-been-created-on-open-forest-protocol","d":"2026-09-28"},"retirement_finality":{"s":4,"q":"A credit that no longer exists upon retirement, and cannot be double counted or re-spent.","u":"https://www.openforestprotocol.org/blog/the-first-open-carbon-credit-has-been-created-on-open-forest-protocol","d":"2026-09-28"},"vintage_methodology":{"s":5,"q":"Importantly, all credits created on OFP are created ex-post, only after data proving the carbon sequestration has occured has been uploaded by the carbon development project and verified by the network.","u":"https://www.openforestprotocol.org/blog/the-first-open-carbon-credit-has-been-created-on-open-forest-protocol","d":"2026-09-28"},"price_vs_offchain":{"s":2,"q":"We are accepting offtaker interest for 2025+ credit issuance now.","u":"https://www.openforestprotocol.org/carbon-credit-buyers","d":"2026-09-28"}}}}