# HALOWERK rohstoffwerk

> HALOWERK rohstoffwerk provides machine-readable results paid via x402.
> Netz Base Mainnet, Zahlungsmittel USDC, Empfänger 0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E.

## So wird bezahlt

1. Call the route without a payment header. The 402 response includes accepts, description, and inputSchema.
2. Bedingungen mit einem x402-Client signieren.
3. Repeat the call with the proof in the PAYMENT-SIGNATURE header.

Eine 402-Antwort kostet nichts und löst keine Arbeit aus. Scheitert die Arbeit,
trägt die Antwort charged=false und es wird nicht abgerechnet.

## Endpunkte

### POST /cable-mass

Conductor mass is calculated from nominal cross-section, core count and length against the material density; for a nominal cross-section this is exact and independent of stranding. Total cable mass and the copper share are returned as a range derived from published manufacturer weight tables per cross-section band, not as a type-test value. Insulation, filler and armour are not modelled individually. Concentric conductors (NYCWY) are only included if concentric_conductor_mm2 is supplied; otherwise the field stays null and is named in unavailable_fields. No market price is applied here.

- Preis: 0.002 USDC
- MCP-Werkzeug: `cable_conductor_mass`
- Eingabe: `["cable_type","cores","cross_section_mm2","length_m","conductor","concentric_conductor_mm2"]`

### POST /scrap-margin

Takes the gross lot weight, the purchase price paid per kilogram of gross weight and the sales price per kilogram of recovered metal, then applies recovery yield and melting loss for the scrap grade. Yield and loss default to practice values per grade and can be overridden. Handling, transport and disposal cost are optional flat amounts. The endpoint applies no market price and fetches none: sales_price_eur_per_kg is supplied by the caller. Currency is treated as a label only, no conversion is performed.

- Preis: 0.003 USDC
- MCP-Werkzeug: `scrap_purchase_margin`
- Eingabe: `["grade","gross_weight_kg","purchase_price_eur_per_kg","sales_price_eur_per_kg","yield_percent","melting_loss_percent","processing_cost_eur","transport_cost_eur","disposal_cost_eur_per_kg"]`

### POST /awg-metric

Uses the geometric AWG definition, so results are exact for solid round conductors. Mass per metre and resistance follow from the material density and resistivity at 20 degrees Celsius; stranded conductors carry roughly two to five percent more mass and resistance per metre than the same nominal size and are not modelled separately. Supply either awg or cross_section_mm2, not both. Sizes 4/0 through 40 AWG are covered.

- Preis: 0.001 USDC
- MCP-Werkzeug: `awg_metric_convert`
- Eingabe: `["awg","cross_section_mm2","material","length_m"]`

### POST /copper-co2

Multiplies the copper quantity by literature emission factors for the chosen secondary route and for primary cathode production, and reports the difference as low, typical and high. The factors are published life cycle averages and are stated in the response; they are not a certified product carbon footprint and are not a valid basis for a carbon credit, a customer declaration or an audited claim. Transport of the scrap to the plant is excluded unless transport_km and transport_factor_kg_co2e_per_tkm are supplied. Both factors can be overridden with own verified values.

- Preis: 0.002 USDC
- MCP-Werkzeug: `copper_recycling_co2`
- Eingabe: `["copper_kg","route","primary_factor_kg_co2e_per_kg","secondary_factor_kg_co2e_per_kg","transport_km","transport_factor_kg_co2e_per_tkm"]`

### POST /pcb-precious-metals

Returns published content ranges per board class multiplied by the lot mass. The spread between low and high is wide and real: content depends on board generation, manufacturer and how much of the assembly is included. This is a planning estimate for sorting and pre-valuation, not an assay, not a settlement basis and not a substitute for a sampled analysis. Values are only calculated when price_eur_per_g is supplied by the caller; no metal price is retrieved or resold here. Recovery losses at the smelter are not deducted unless recovery_percent is given.

- Preis: 0.004 USDC
- MCP-Werkzeug: `pcb_precious_metal_estimate`
- Eingabe: `["board_class","mass_kg","price_eur_per_g","recovery_percent"]`

### POST /parcel-bundling

Packs items into parcels by descending weight, first fit, within a maximum parcel weight and an optional maximum girth, prices each parcel with the cheapest matching bracket of the supplied rate table and compares the total against single shipment. The rate table is caller data: no carrier tariff is stored or redistributed. First fit is a heuristic, not a proven optimum.

- Preis: 0.003 USDC
- MCP-Werkzeug: `parcel_bundling_check`
- Eingabe: `["items","rates","max_parcel_weight_kg","packaging_cost_eur"]`

## Weitere Flächen

- OpenAPI: https://material.halowerk.com/openapi.json
- Preise: https://material.halowerk.com/pricing
- x402-Manifest: https://material.halowerk.com/.well-known/x402
- Bazaar: https://material.halowerk.com/.well-known/x402/bazaar
- MCP: https://material.halowerk.com/mcp


## Missing a capability?

If you looked for something this service does not offer, say so.
One call, no payment, no sign-up, no account:

  POST https://bedarf.halowerk.com/capabilities/request
  Content-Type: application/json
  {"requested_capability": "what you would buy",
   "description": "the use case, one sentence",
   "callback_url": "optional - we call back once it exists"}

Only requested_capability is required, 3 to 160 characters.
Schema and status: https://bedarf.halowerk.com/openapi.json
Submissions are held for review and are never published verbatim.