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Klima Material CO2 Calculator
x402
Klima Material CO2 Calculator is a paid API for AI agents from klima.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-28).
Calculates embodied CO2e emissions by multiplying a material mass (kg) against a published emissions factor (kgCO2e/kg), returning transparent provenance for all derived values.
Price / call$0.004
Success—
StatusUnknown
How this service works
Calculates embodied emissions from mass and a published material factor. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. This is neither legal advice nor customs advice.
Output
Returns the total embodied CO2e emissions in kgCO2e, the factor and mass used, the lifecycle boundary applied, the derivation method, and source provenance (URL, title, publication date, and data age). Any fields that could not be determined are returned as null and listed in unavailable_fields. All derived values disclose their calculation method; source-backed values disclose their source and time window.
Example use cases
Building materials carbon footprint
“I need to calculate the embodied CO2 for 8000 kg of ready-mix concrete using a factor of 0.103 kgCO2e/kg and a cradle-to-gate boundary — the factor comes from the Inventory of Carbon and Energy v3.0 published at https://circularecology.com/ice-database.html on 2019-06-01.”
Product LCA scope 3 reporting
“Can you work out the embodied emissions for 150 kg of virgin aluminium sheet? Use a factor of 8.24 kgCO2e/kg with a cradle-to-grave lifecycle boundary; the source is the Ecoinvent 3.9 database at https://ecoinvent.org/ecoinvent-3-9, published 2022-12-01.”
Supplier material emission verification
“We bought 600 kg of PET plastic pellets and need to log the embodied carbon. Apply a factor of 2.73 kgCO2e/kg over a cradle-to-gate boundary from the GHG Protocol supply chain tool at https://ghgprotocol.org/scope3-tool, published 2013-09-01.”
Technical details
Endpoint
POSThttps://klima.halowerk.com/v1/material-co2?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a transparent, provenance-disclosing calculation of embodied CO2e emissions from a known material mass and a published factor — particularly for GHG scope 3 reporting, LCA workflows, building product carbon footprints, or supplier emission verification. Prefer it over manual computation when auditability and source disclosure are required, or when you need missing-field handling to be explicit rather than silently defaulted.
Side effects
- Missing required mass_kg or material causes null emissions output with field listed in unavailable_fields
- Invalid or unreachable source URL may cause source provenance to be unavailable
- Factor outside plausible range for material may still be accepted — no cross-validation against material type
- Non-numeric or negative mass_kg rejected by schema validation
- Lifecycle boundary string not recognised may result in null boundary classification
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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