reference · 15 tools
Tools, one endpoint each.
POST the arguments to /v1/tools/<name>. Each page shows the input schema exactly as the server validates it, a working call in four languages, and a real response.
Compute
Facts in, a cited answer or a printed line set out. Every result is hashed; includeProof returns the tree.
calculate_tax
Any federal individual target (default net tax) from grouped facts; includeProof adds the full proof tree.
19 inputs
compute_return
The Form 1040 bottom-line line set from transcribed W-2, 1099 and SSA-1099 boxes.
19 inputs
compute_state_return
The printed line set of a state's full-year-resident return, 31 states.
1015 inputs · required: jurisdiction, asOf
calculate_business_tax
Form 1120 taxable income and tax, S-corp entity taxes, classification, estimates. Calculation only.
64 inputs
calculate_fiduciary_tax
Form 1041 § 1(e) rate schedule and § 642(b) exemption.
6 inputs
determine_dependent
§ 152 qualifying child or qualifying relative, with proof.
20 inputs
compare_filing_statuses
The same facts under every eligible filing status.
1 inputs · required: facts
find_tax_cliffs
Sweep one input across a range; every discontinuity in the target.
5 inputs · required: facts, vary, fromDollars, toDollars
Verify
Gate a number somebody else produced — your software, a model, a preparer — against the law.
Discover
What the corpus knows: parameters, rules, verbatim statute, every input fact.
lookup_tax_parameter
Dollar amounts, rates and thresholds, with citations.
2 inputs · required: query
search_tax_rules
Does the corpus encode this? Rule discovery by keyword.
3 inputs · required: query
explain_rule
A rule's formula, parameters, validity window and verbatim law text.
1 inputs · required: ruleId
list_input_facts
Every input fact: id, type, default, description.
0 inputs
is_tipped_occupation
Whether a job is on the Treasury § 224 tipped-occupation list.
1 inputs · required: job