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Klima GHG Scope Classifier
x402
Klima GHG Scope Classifier 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).
Classifies a described activity into GHG Scope 1, 2, or 3 using caller-supplied keyword rules, returning the matched scope and category with transparent provenance.
Price / call$0.004
Success—
StatusUnknown
How this service works
Classifies an activity into a caller-selected GHG scope using explicit rule matches. 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 matched GHG scope (1, 2, or 3) and category for the activity based on the first matching keyword rule. Null values are returned for any fields that cannot be determined, with those field names listed in unavailable_fields. Provenance metadata (source URL, title, published_at, and data age) is disclosed for source-backed values; derivation method is disclosed for computed values.
Example use cases
Corporate carbon inventory scoping
“I have a list of custom keyword rules mapping activities to Scope 1, 2, or 3 — for example 'diesel generator' maps to Scope 1 / Direct Combustion and 'cloud computing' maps to Scope 3 / Purchased Services. Classify the activity 'AWS data center usage for our SaaS platform' using those rules and tell me the matched scope and category.”
ESG report emission tagging
“We're preparing our annual ESG report and need to tag each activity with the right GHG scope. Using my rules where 'grid electricity import' is Scope 2 / Market-Based and 'business air travel' is Scope 3 / Business Travel, classify 'transatlantic flights for sales team in Q4' and return the scope, category, and any fields you couldn't determine.”
Supplier emissions disclosure review
“I'm reviewing a supplier disclosure and want to check whether their activity 'incineration of production waste off-site' falls under Scope 3 based on my rule set — keywords like 'off-site waste' map to Scope 3 / Downstream Waste Treatment. Classify the activity and tell me if any supporting facts were unavailable.”
Technical details
Endpoint
POSThttps://klima.halowerk.com/v1/ghg-scope?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need rule-based, auditable GHG scope classification driven by your own keyword taxonomy rather than a black-box ML model. It is ideal for compliance workflows where transparency of matching logic and data provenance is required. Prefer it over manual categorization or general-purpose LLM classification when you need consistent, reproducible scope tagging with explicit disclosure of missing data. It complements klima.halowerk.com's emission calculation endpoints by providing the upstream scoping step.
Side effects
- No keyword rule matches the activity — scope and category returned as null with unavailable_fields populated
- Activity string is empty or exceeds 512 characters — validation error
- Rules array is empty or missing required fields (keyword, scope, category) — schema validation error
- Source object missing required fields (url, title, published_at) — validation error
- Invalid scope enum value in rules (must be '1', '2', or '3') — validation error
- Source URL malformed — URI format validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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