Isometric
Isometric is a London- and New York-based carbon removal registry and AI-native certification platform for the industrial economy, founded in 2022 by Eamon Jubbawy (founder of Onfido). It operates the Isometric Registry — a public registry of high-durability carbon dioxide removal (CDR) credits — and Isometric Certify, the supplier-facing platform for project design, lifecycle assessment, measurement reporting and verification (MRV), and GHG statement submission. Isometric publishes scientific protocols across 14 CDR pathways including direct air capture, enhanced rock weathering, biochar, biomass carbon removal and storage (BiCRS), reforestation, mangrove restoration, wastewater alkalinity enhancement, and subsurface biomass storage, with modular sub-components for capture, feedstocks, LCA, and storage. Two public REST APIs are documented and versioned at /v0 — the Certify Data Ingestion API (53 paths, 170 schemas) for supplier MRV workflows, and the Registry API (38 paths, 79 schemas) for credit balances, issuances, transfers, retirements, deliveries, orders, and Stripe checkout. Both speak OpenAPI 3.1.0, share bearer + x-client-secret authentication, run separate sandbox and production environments, and use Relay-style cursor pagination. No official SDKs are published; clients are expected to generate from the OpenAPI specs. An MCP server is available for AI assistant integration. Data providers including CDR.fyi, MSCI, Sylvera, and CEEZER consume the Registry API for real-time CDR market data.
APIs
Isometric Certify Data Ingestion API
The Certify API (MRV API) is the supplier-facing data ingestion surface for carbon removal projects. It covers sources and evidence uploads, datapoints, components and component...
Isometric Registry API
The Registry API exposes Isometric's public carbon removal registry — issuances, credit batches, organization credit balances, transfers, retirements, refunds, orders, deliverie...