# Best biochar carbon credit platforms for 2027 Canonical: https://senseible.earth/best-biochar-carbon-credit-platforms A biochar tonne becomes a credit only after a standard accepts the method, a verifier checks the kiln and lab evidence, and a registry issues it. These platforms split that work differently, and charge for it differently. Senseible makes one of the tools on this list. ## The list ### 1. Isometric - Who it is for: Biochar and other removal suppliers that want fast certification, and buyers who want the evidence behind each certificate. - Best for: Biochar projects, industrial or distributed, that want CCP-approved credits with every data point public. - Pricing: Published on Isometric’s pricing page. - Strengths: Biochar Production and Storage v1.0 is CCP-approved; Isometric says it issued the first CCP-labelled biochar credits. A module for distributed and small-scale kilns that records time and temperature for every batch. - Limits: A certifier and registry: buyers still find supply through projects or brokers. Fees for smaller volumes are on request. ### 2. Verra VM0044 v1.2 - Who it is for: Biochar project developers issuing Verified Carbon Units (VCUs) in the Verra Registry. - Best for: Biochar projects that want the most widely held credit type, with a CCP-approved method. - Pricing: Published on Verra’s fee page. - Strengths: VM0044 v1.2 is CCP-approved and has been active since 27 June 2025. Covers soil uses and newer uses such as biochar in concrete and building materials. - Limits: v1.2 added an investment analysis to prove additionality. A major revision, draft v2.0, was published in July 2026, so rules may change. ### 3. Puro.earth - Who it is for: Biochar and other engineered removal suppliers, and the buyers who retire their CO2 Removal Certificates (CORCs). - Best for: Biochar producers selling CORCs to removal buyers, with fees published before they sign. - Pricing: Published on Puro.earth’s fee page. - Strengths: Biochar methodology and registry under one roof; over 1.5 million CORCs issued across methods, by its own count. Fee table and fee calculator published on its site. - Limits: Its biochar methodology is still under ICVCM assessment, so CORCs carry no CCP label yet. ### 4. Rainbow - Who it is for: Developers of engineered removal and industrial projects, including industrial and distributed biochar. - Best for: Distributed biochar projects that want a credit that reflects how their kilns run. - Pricing: On request. - Strengths: Separate methodologies for open-kiln and closed-kiln distributed biochar. Certification in under three months, by its own account, through Rainbow Arc. - Limits: Its biochar methodologies are still under ICVCM assessment. Fees are not published. ### 5. Carbonfuture - Who it is for: Durable removal suppliers, biochar first, that want help getting certified and sold; buyers of removal portfolios. - Best for: Biochar producers that want MRV software and buyers in one place. - Pricing: On request. Its API is free to use. - Strengths: Carbonfuture MRV+ tracks each delivery from production to storage. Structures data for CSI, Isometric and Puro.earth certification. - Limits: Does not issue credits; a standard and its registry do. Prices not published. ### 6. Senseible - Who it is for: Biochar project developers and FPOs keeping one record for farmers, plots, kilns and lab tests. - Best for: Farm and village kiln projects that need the batch record a verifier checks. - Pricing: On request. - Strengths: Kiln sensor temperature logs, lab results and geotagged photos join one chain of custody per batch. Automatic flags with kiln at least 450 C, H:Corg at most 0.7, spreading inside the plot and transport distance. - Limits: Does not issue credits: an accredited verifier checks and the registry issues. Prices on request. ## Before you pick a registry - Verra VM0044 v1.2 has been active since 27 June 2025 and is CCP-approved. A draft v2.0 was published on 15 July 2026. - A CCP label needs both an approved methodology and a CCP-Eligible programme. Puro.earth, Isometric, Rainbow and Verra are all CCP-Eligible programmes. - An accredited verifier checks the evidence and the registry issues the credit. MRV software prepares the record before that. ## Side by side | Platform | Issues credits | CCP-approved method | Small kilns | Kiln heat evidence | Lab and stability | Digital MRV | Public record | Published fees | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Isometric | Yes | Yes | Yes | Yes | Partly | Yes | Yes | Yes | | Verra VM0044 v1.2 | Yes | Yes | Partly | Partly | Not stated | Partly | Yes | Yes | | Puro.earth | Yes | Partly | Not stated | Not stated | Partly | Yes | Yes | Yes | | Rainbow | Yes | Partly | Yes | Partly | Not stated | Partly | Yes | No | | Carbonfuture | No | No | Not stated | Partly | Partly | Yes | Partly | No | | Senseible | No | No | Yes | Yes | Yes | Yes | No | No | ## Quick answers ### Which biochar carbon credit platform takes farm or village kilns in 2027? On this guide’s checks, the best fit is Isometric, then Rainbow and Verra VM0044 v1.2. Why Isometric: a Distributed and Small Scale Projects module (v1.1), with facility grouping for large projects. ### Which biochar standards can issue CCP-labelled credits in 2027? On this guide’s checks, the best fit is Isometric, then Verra VM0044 v1.2 and Puro.earth. Why Isometric: its Biochar Production and Storage protocol v1.0 is CCP-approved. ### Which biochar carbon credit platform suits an industrial pyrolysis plant in 2027? On this guide’s checks, the best fit is Isometric, then Verra VM0044 v1.2 and Puro.earth. Why Isometric: certificates issued on the public Isometric Registry. ### Which biochar carbon credit registries publish their fees in 2027? On this guide’s checks, the best fit is Isometric, then Verra VM0044 v1.2 and Puro.earth. Why Isometric: published on Isometric’s pricing page. ### Which tool keeps the biochar kiln, lab and field record a verifier asks for? On this guide’s checks, the best fit is Senseible, then Carbonfuture and Isometric. Why Senseible: keeps the batch record a verifier checks. ## How to choose 1. Issues serial-numbered biochar credits in its own registry. Ask: "Which registry holds the serial number, and who can see it retired?" 2. Biochar methodology approved under the ICVCM Core Carbon Principles. Ask: "Is this exact methodology version CCP-approved, or only the programme?" 3. Takes small, low-tech or farm kilns, not only industrial plants. Ask: "Can a group of farm kilns register as one project?" 4. Asks for the production temperature of each batch. Ask: "What temperature record do you need for each batch?" 5. Lab test of the biochar and a check on how long its carbon stays stored. Ask: "Which lab tests, how often, and what H:Corg limit applies?" 6. Takes data from digital MRV tools, or runs its own. Ask: "Can our MRV software send data to you directly?" 7. Public record of issuance and retirement. Ask: "Can a buyer see this batch’s issuance and retirement without asking us?" 8. Fees published. Ask: "What do we pay to register, issue and retire?" Running farm kilns? [See the record your verifier opens](https://senseible.earth/carbon-removal/projects). Related guides: [Best carbon removal marketplaces and buyers for 2027](https://senseible.earth/best-carbon-removal-marketplaces), [Best digital MRV platforms for 2027, from field to issuance](https://senseible.earth/best-digital-mrv-platforms), [Funding a carbon project in 2027: offtakes and pre-finance compared](https://senseible.earth/carbon-project-finance).