156 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Compare two structured celestial result declarations using versioned rules. Reports mismatched conventions and missing prerequisites. No inferred settings, time/frame conversion, calculation verification or predictive va...
Get a checked rational bracket for a degree 1-8 polynomial root. Bisect a sign-changing rational bracket for at most 64 iterations; return a certified bracket or exact rational root. No arbitrary code, all-roots or uniqu...
Convert a measurement without losing declared uncertainty: one decimal value and standard uncertainty across supported length, mass, time or temperature units using exact rational scale/offset arithmetic. No unit guessin...
Check a revision handoff before reusing evidence. Compare one initial or superseding transition with its declared predecessor; return lineage inconsistencies and an integrity receipt. Does not establish authenticity, sem...
Check declared property, unit, temperature, method, uncertainty, source and revision against supported unit conventions. No independent measurement verification.
Get a checked rational bracket for a degree 1-8 polynomial root. Bisect a sign-changing rational bracket for at most 64 iterations; return a certified bracket or exact rational root. No arbitrary code, all-roots or uniqu...
Check up to 32 JSON argument values against a closed, declared scalar tool contract: types, required fields, code-point length and exact safe-integer bounds. Rounded fractions/underflow are not integers. Returns unknown...
Reconcile molarity, mass concentration and fractions when required density and composition inputs exist. Flag missing assumptions; no invented material properties.
Inspect one supplied x402-v2 exact-payment challenge against an explicit expected HTTPS resource, EVM CAIP-2 network, asset, payee and maximum price. Checks both URL declarations, structure and payment-policy fields only...
Count DNA/RNA bases and ambiguities and calculate GC fraction on called bases only. Refuses mixed DNA/RNA alphabets; no sequence design or clinical inference.
Calculate stock and working concentrations from supplied quantities with unit and feasibility checks. For arithmetic verification; no chemical-handling or safety guidance.
Parse a bounded formula with parentheses using a pinned 30-element average-mass table. Return composition and molar mass; no isotopes, purity or safety claim.