$0.03
per call · USD Coin on Base
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.
Endpoint
GET https://toolcall.click/t/chem/compatibility1
Calls / 30d
1
Unique payers / 30d
Aug 21
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://toolcall.click/t/chem/compatibility", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://toolcall.click/t/chem/compatibility?a=sodium+hypochlorite&b=ammonia" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"a": {
"name": "Sodium Hypochlorite"
},
"b": {
"name": "Ammonia"
},
"confidence": 0.95,
"expectedEffects": [
"toxic fumes"
],
"reason": "Forms toxic chloramine gases",
"verdict": "incompatible"
}Payment details
0x84fa7ea8303d4f503267e2e998a3f7d980e814a5USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of Media & Generation and the homepage with a featured placement.
More from Toolsmith & similar services
Toolsmith · Jobs Search
toolcall.click
Live job postings without scraping: company= returns an employer's current openings straight from their official ATS board (Greenhouse, Lever, Ashby, SmartRecruiters) with title, location, department, type and apply URL; query= searches remote-heavy job APIs (Remotive, Arbeitnow) by keyword. Optional location= filter. JSON response. $0.02 USDC per call, pay via x402, no API key.
Toolsmith · WEB Screenshot
toolcall.click
Full-fidelity screenshot of any public web page, captured by a real Chrome browser. Viewport or full-page, configurable width. Returns a base64 PNG. JSON response. $0.015 USDC per call, pay via x402, no API key.
Toolsmith · FX Rates
toolcall.click
Foreign exchange reference rates from the European Central Bank. Base currency plus optional symbols filter. Updated daily on ECB schedule. JSON response. $0.002 USDC per call, pay via x402, no API key.