# Halowerk Chemical Hazard Profile

> Halowerk Chemical Hazard Profile is a paid API for AI agents from med.halowerk.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-14).

Returns the GHS hazard profile of a chemical including pictograms, signal word, hazard and precautionary statements, and physical handling properties like flash point, boiling point, and vapour pressure.

## Facts

- Endpoint: POST https://med.halowerk.com/v1/chemical-hazard
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-chemical-hazard-profile-fb78a82a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JneEeCdD6_WbFtXi7PuqN

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability halowerk-chemical-hazard-profile-fb78a82a -d '<json body>'
```

Example prompt: Can you pull up the full GHS hazard profile for acetone — I need the signal word, all hazard and precautionary statements with the organization that contributed each, plus the physical properties like flash point, boiling point, and vapour pressure?

## When to prefer this

Choose this endpoint when you need structured GHS hazard classifications and physical handling properties for a specific chemical, especially when source attribution (which organization contributed each statement) is important. Prefer it over generic chemistry databases when you need both regulatory safety statements and physical constants in a single call, and when paying per-query via x402 is acceptable.

## Known failure modes

- Chemical not found in database — returns empty or 404-style response
- Partial data — some physical properties may be missing if not recorded for the substance
- Ambiguous chemical name resolves to wrong compound — use CAS number for precision
- Network timeout on $0.006 USDC x402 payment or API unavailability

## How this service works

Returns the hazard profile of a chemical: GHS pictograms, signal word, hazard statements and precautionary statements where they are recorded, together with the physical properties that govern handling — melting and boiling point, flash point, density, vapour pressure, solubility and autoignition temperature. Every statement carries the organisation that contributed it, and that attribution is the substance of the service rather than a citation courtesy.

## Output

A structured hazard profile for the queried chemical including GHS pictograms, signal word, all applicable hazard statements and precautionary statements each attributed to the contributing organization, plus physical properties: melting point, boiling point, flash point, density, vapour pressure, solubility, and autoignition temperature.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "maxLength": 300,
   "minLength": 1,
   "description": "Name, CID or CAS number."
  },
  "include_properties": {
   "type": "boolean",
   "default": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-chemical-hazard-profile-fb78a82a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from med.halowerk.com](https://www.zero.xyz/host/med.halowerk.com/llms.txt)