startups as

Taxrates.Dev taxrates.dev

namespace seednamespaceSoftware

The rate as a call: one address in, the combined rate and each jurisdiction's part out, with the source file and effective date on every answer. Data, not a filing service; the returns route to salestax.click.

From the Startup card at api.sb/taxrates.dev · Designed · Dataset.

contested · 1 tension

tier: namespace · projection lens A reads namespace (namespace); lens B reads projection (brand)

The two lenses (and any ledger statement) are kept side by side, not resolved. Most names carry one; it is a reading to explore, not an error.

What it is

Tier	namespace	Inferred · med · portfolio-lens-a.tsv (tier)
Status	namespace seed	Inferred · med · lens A tier namespace
Product kind	Software	Inferred · low · seed rule: name grammar api(s).*/.dev/.studio/.management/.app; product kinds per studio CONTEXT.md (Cloud · Data · Software · Service · Commerce · Marketplace)
Core noun	Return	Inferred · low · seed rule: the unit noun of lens B abstraction V-tax (portfolio-lens-b.md §1)
Buyer and position	Developers needing tax rates	Inferred · high · portfolio-lens-b.tsv (icp_or_position)
Closed set or journey	S20 One statute, one check (.dev regulatory checks)	Inferred · med · portfolio-lens-a.tsv (set_or_journey)
Abstraction	V-tax	Inferred · high · portfolio-lens-b.tsv (abstraction)
Role (lens B)	projection	Inferred · high · portfolio-lens-b.tsv (role)
Registrar	porkbun	Inferred · high · holdings ledger (domains repo, read-only)

Its stack

Generated around Taxrates.Dev

                             Taxrates.Dev                    centre
                                   │
                             APIs.Finance                    the businesses
                                   │
                              Headless.ly                    the abstractions
                                   │
                              SaaS.Studio                    the abstractions
                                   │
                                API.SB                       brands
                                   │
   Startups.Studio ────── StartupBuilder.Dev                 brands

Click any node to re-centre the stack on it; the trail above keeps the nesting. Each node's own page is one more click.

Neighbours

Same abstraction (V-tax)

APIs.Accountants Amended.Tax Enrolled.Tax Gigs.Accountants Gigs.Tax Moonlight.Accountants Overflow.Tax Preparers.Tax Shingle.Accountant Auditor.do Audits.do CPA.org.ai Tax.org.ai Taxes.do Auditors.Expert Engagementletters.co Exchequer.Tax Itemized.Click Quarterlies.Click Salestax.Click Taxhome.Dev

Listed by

no discovery view lists it yet

In logo rows

APIs.Finance's row buildable
APIs.Accountants's row specified

Slices

in no slice

Relationships (2)

from	verb	to	provenance
Taxrates.Dev	runs-on logo row: "Powering" / "Built on" (customer runs on supplier)	APIs.Finance	Inferred · low · docs/plans/research/2026-10-24-builder-brands/logo-graph.tsvbuildable sb def taxrates.dev: built on apis.finance [low] — The fan-out places it in the apis.finance family (register market accounting-tax). Stated, not an observed call.
Taxrates.Dev	runs-on logo row: "Powering" / "Built on" (customer runs on supplier)	APIs.Accountants	Inferred · medium · docs/plans/research/2026-10-24-builder-brands/logo-graph.tsvspecified sb def taxrates.dev: built on functions/tax [medium]; apis.accountants is its preferred provider [medium]

Edit log

loading the versions of this record from api.sb…

Machine-readable: /taxrates.dev.json