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Given a reaction and a known amount (moles or grams) of one species, compute the amount of a target species. The equation is balanced automatically.
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://chemeq.openverbs.com/v1/stoichiometry' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch 'https://chemeq.openverbs.com/v1/stoichiometry'
Endpoint: https://chemeq.openverbs.com/v1/stoichiometry. Operated by chemeq.openverbs.com, not by Animica. Price and availability were correct at the last probe on 2026-10-01 and are set by the operator, who may change them.
Balance an equation such as "H2 + O2 -> H2O" into the smallest whole-number coefficients using exact rational linear algebra. Equations that cannot be balanced …
Given a reaction and the supplied amount of every reactant, identify the limiting reagent and compute leftover reactant and theoretical product yields.