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Api Endpoint

Toolsmith

Can chemical A be safely mixed or stored with chemical B? Pass two CAS numbers or names. Returns a verdict (incompatible / caution / no_known_hazard), the reason, expected effects (gas evolution, heat, fire, toxic fumes) and confidence, from expert reasoning over PubChem GHS data and CAMEO-derived reactivity profiles. JSON response. $0.03 USDC per call, pay via x402, no API key.

Open interactive test console

Offering

Provider
toolcall.click
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Science And Education
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://toolcall.click/t/chem/compatibility
MIME type
application/json
First seen
2026-10-16T01:50:10.647Z
Last seen
Tags
chemical compatibility, reactivity, storage safety, hazmat, cameo, lab safety

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.03 USDC
Atomic price: 30000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "30000",
    "payTo": "0x84FA7Ea8303d4f503267e2e998A3F7D980e814a5"
  }
]

Observed health

Status
Healthy
Latest latency
204 ms
Average latency
1122 ms
HTTP status
402
Last checked
Reachability
92.3% over 13 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "a": {
          "type": "string",
          "description": "First chemical: CAS number or name"
        },
        "b": {
          "type": "string",
          "description": "Second chemical: CAS number or name"
        }
      },
      "required": [
        "a",
        "b"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "a": {
              "description": "First chemical: CAS number or name",
              "type": "string"
            },
            "b": {
              "description": "Second chemical: CAS number or name",
              "type": "string"
            }
          },
          "required": [
            "a",
            "b"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}