Persefoni is a climate management and accounting platform (CMAP) used by enterprises and financial institutions to measure, report, and reduce greenhouse gas emissions. The platform serves more than 9,000 sustainability teams and covers Scope 1, 2, and 3 emissions, financed emissions for financial services (PCAF), and disclosures aligned to SBTi, TCFD, CSRD, SEC, and SASB. Persefoni also ships PersefoniAI and the Persefoni Copilot for in-product carbon accounting expertise. An Integration Hub provides pre-built connectors to enterprise systems (AWS, SAP Concur, Expensify, Navan, Google Sheets, Coupa, NetSuite, Stripe, utilities). Persefoni does not publish a fully open, self-service API portal; programmatic access is delivered through customer and partner channels.
Persefoni is listed with 1 API on the APIs.io network. Tagged areas include Climate, Carbon Accounting, CMAP, ESG, and Financed Emissions.
Persefoni’s developer surface includes engineering blog and 15 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Horizontal (data, software, accessibility, platform) regime, so
Regulatory Posture carries 15 points of the composite.
If this regime is wrong for your business, say so on your
provider repo — the
applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
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Agent readiness — checks not met, largest first (exact, from this profile):
Machine-Readable Auth+10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency+9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics+8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
12 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
The Kin Score Market layer reads a provider inside its market:
its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted:
not part of the Kin Score or agent readiness.
Registered MCP server and declares compatibility are report only — not weighted.
Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
Persefoni's Integration Hub connects the CMAP platform to enterprise systems so emissions-relevant activity data flows in automatically rather than via manual upload. It bundles...
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