---
title: "CBAM Certificate Cost & Free-Allocation Engine"
method: POST
path: "/v1/tools/model_cbam_certificate_cost"
tags: ["TODO_TAGS_REVIEW", "TODO_AP2_EXPORT_REVIEW"]
---

# CBAM Certificate Cost & Free-Allocation Engine

`POST /v1/tools/model_cbam_certificate_cost`

## Request

- Base URL: `https://ainumbers.co`
- URL: `https://ainumbers.co/v1/tools/model_cbam_certificate_cost`
- Auth: none declared

Converts embedded emissions into a CBAM certificate liability: applies the CBAM factor (free-allocation phase-out 2.5% 2026 to 100% 2034), deducts origin carbon price already paid, and projects the quarterly holding and surrender schedule to the 30 Sep deadline.

**Tool URL:** https://ainumbers.co/chaingraph/art-71-cbam-certificate-cost-engine.html

## Request body

- object
  - `annual_imported_net_mass_t` unknown
  - `cbam_factor_year` unknown
  - `cbam_sector` unknown
  - `embedded_emissions_tco2e` unknown
  - `eua_quarter_avg_prices` unknown
  - `eua_reference_price` unknown
  - `import_schedule` unknown
  - `origin_carbon_price_eur_per_t` unknown
  - `threshold_exceeded_quarter` unknown

## Response `200`

Successful tool execution result

- object
  - `cbam_factor` number
  - `cbam_factor_applied` number
  - `cbam_factor_year` integer
  - `certificate_liability_eur` integer
  - `certificates_required` integer
  - `eua_reference_price` integer
  - `free_allocation_phaseout_pct` number
  - `gross_liability_tco2e` integer
  - `net_liability_eur` integer
  - `note` string
  - `origin_price_credit` integer
  - `quarterly_holding_schedule` unknown[]
    - unknown
  - `reference` object
    - `cbam_factor_source` string
    - `eua_price_note` string
    - `reference_version` string
  - `surrender_deadline` string

---

[API](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite.md) · [All operations](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/llms.txt) · [OpenAPI document](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/revisions/b462e4f5bb28?raw)