Pre-compiled packages that turn authoritative rulebooks into deterministic decision APIs. Cite the source, get the verdict, ship the integration.
Compiled, not prompted.
Every decision is deterministic and traceable. No LLM at runtime.
Each bundle is a domain. Packages inside a bundle are designed to compose — run one on its own, or stack several to cover a wider surface.
Paycheck math, handled.
Deterministic withholding, tax, and supplemental-wage computation for US employers. Federal income tax withholding is live today, sourced directly from IRS Publication 15-T with full worksheet traces on every evaluation. State withholding overlays, FICA/Medicare, FUTA, and supplemental wage rules follow through 2026. Designed to compose: run one package for a federal-only employer, stack several for a multi-state workforce.
Built for: Payroll SaaS, HRIS platforms, PEOs, contractor management tools, AI agents handling employee onboarding.
See packages →Hiring, leave, and classification — as decisions, not PDFs.
The federal employment-law decisions employers have to make every day — is this employee FMLA-eligible, is this worker exempt from overtime, is this I-9 documentation sufficient — compiled into callable policy. Each package handles the federal baseline; state overlays layer on top for California, New York, Washington, and Colorado. Every evaluation returns a traceable answer that cites the statute or regulation it came from.
Built for: HRIS platforms, leave-management tools, employer compliance software, AI-powered HR assistants.
Join the waitlist →Investor qualification without the 50-page legal memo.
SEC and state-level compliance decisions for private offerings and investor qualification. Determines accredited-investor and qualified-purchaser status across all recognized paths — income, net worth, professional certification, entity rules — with the exact-basis trace a fund administrator's auditor will ask for. Extends into Reg D, Reg CF, and Blue Sky filing triggers.
Built for: Fund administrators, RIAs, syndication platforms, crowdfunding sites, cap-table SaaS, AI agents serving high-net-worth clients.
Join the waitlist →Affordable-housing eligibility, computed.
HUD income limits, Fair Market Rents, LIHTC qualification, and Section 8 eligibility — computed from authoritative HUD data, indexed by MSA and household size, updated when HUD republishes annually. The math behind affordable-housing decisions that today lives in spreadsheets and senior underwriters' heads.
Built for: Affordable-housing property managers, LIHTC syndicators, housing finance lenders, housing nonprofits, PHA software vendors.
Join the waitlist →SBA eligibility, federal contracting, and small-business certification.
Determines whether a business qualifies as "small" under SBA standards for a given NAICS code, and whether it meets the thresholds for 8(a), HUBZone, WOSB, and other federal contracting set-asides. Extends into federal contractor cybersecurity and reporting requirements. The eligibility math behind every federal contract a small business chases.
Built for: GovCon platforms, SBA lenders, federal contracting SaaS, capital matchmaking tools.
Consumer data rights, as a rule engine.
What must be disclosed, what must be deleted, and on what timeline — computed per-jurisdiction from CCPA, CPRA, VCDPA, CPA, CTDPA, and analogous state regimes, with GDPR as the international overlay. Designed for products that handle consumer data across state lines and need to answer "what applies to this user?" deterministically.
Built for: Consumer SaaS, data platforms, marketing tools, privacy-ops teams, AI products processing personal data.
Every card cites its source. Every status line tells you what's shippable today, what's next, and how updates land when the underlying rules change.
IRS Publication 15-T · 2026
Compute federal income tax withholding on wages, salaries, and periodic pension payments using the IRS's authoritative methods. Supports Percentage Method and Wage Bracket Method across all pay frequencies, both 2020+ and pre-2020 Forms W-4, nonresident alien adjustments, supplemental wage rules, and Indian gaming distributions. Returns a full worksheet trace with every calculation. Includes all 2026 updates from the One Big Beautiful Bill Act.
Available · v1.3.1 · Annual updates
Try it →EDD DE 44 · 2026
State income tax withholding for California employees, per the EDD's published methodology. Handles California-specific allowances, additional exemptions, and the state's distinct withholding schedules for regular and supplemental wages. Composes with Federal Income Tax Withholding for complete paycheck math.
Coming Q2 2026
NYS Publication NYS-50-T-NYS · 2026
State income tax withholding for New York employees, including New York City and Yonkers resident withholding where applicable. Handles the state's exact-method and chart-method calculations, bonus-wage treatment, and the metropolitan commuter transportation mobility surcharge.
Coming Q2 2026
Social Security and Medicare tax computation
Social Security (6.2%) and Medicare (1.45%) employee and employer tax computation, including the Additional Medicare Tax on high earners and the Social Security wage base cap. Annual wage-base updates ship automatically with each new year's edition.
Coming Q3 2026
Federal unemployment tax
Federal Unemployment Tax Act computation, including the 0.6% effective rate, the $7,000 wage base, credit reduction state logic, and Form 940 reporting triggers. Handles multi-state employers with workers in credit-reduction jurisdictions.
Coming Q3 2026
IRC §3402 supplemental wage methods
Computes federal withholding on bonuses, commissions, severance, and other supplemental wages using either the 22% optional flat method, the aggregate method, or the mandatory 37% rate for payments exceeding $1M year-to-date. Composes with Federal Income Tax Withholding for employers electing the aggregate method.
Coming Q3 2026
29 CFR 825 · Family and Medical Leave Act
Determines whether an employee is entitled to FMLA-protected leave, based on employer size, employee tenure, hours worked in the preceding 12 months, and qualifying reason. Returns a clean eligible/ineligible/needs-more-info verdict with citation. State leave overlays (CFRA, NYPFL, WA PFML, Colorado FAMLI) extend this baseline.
29 CFR 541 · Fair Labor Standards Act exemptions
Determines whether an employee is exempt from overtime under the FLSA's executive, administrative, professional, computer, outside sales, or highly-compensated-employee tests. Applies the salary-basis test, the duties test, and the current salary thresholds. Updates automatically when DOL revises the thresholds.
Coming Q3 2026
SEC Rule 501 · Regulation D
Determines accredited-investor status for individuals and entities across all recognized qualifying paths — income, net worth, Series 7/65/82 certifications, knowledgeable employees, family offices, and entity-based qualification. Handles spousal aggregation, income averaging, and primary-residence exclusion for the net-worth test.
HUD Section 8 income limits · 2026
Determines whether a household qualifies at the 30%, 50%, 60%, or 80% of Area Median Income thresholds used in HUD programs and LIHTC, indexed by MSA or county and household size. Uses HUD's published annual dataset; automatically recomputes when HUD republishes each spring.
We're adding packages every quarter. Tell us what rulebook you need compiled and we'll let you know when it ships — or whether it's already in the pipeline.