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US Small Business Hub

One endpoint for a US small business: what is due, what changed, am I over the line, first hire, vendor, sales tax nexus, funding and late-deposit checks, each dated, sourced and honest about what it could not check

Unify Dynamics LLC

Tools25read-only
Sign-inNoneno account, no key
Data keptNoneprocessed in memory
PriceFreeoptional Pro limits
StatusLiveMCP + REST
Works withMCP · RESTany agent

Try asking

Real questions, and the tools your agent calls to answer them.

Every Monday morning tell me what is due in the next two weeks for my Texas LLC and what changed.
Tools called
monday_brief
What deadlines do I have in the next 30 days as an S corporation with three employees who pays monthly payroll deposits?
Tools called
whats_due
taxcal_deposit_due_date
What changed this week that touches my business, including any CPSC recall that matches the products, brands and suppliers on my list, and what takes effect in the next 60 days?
Tools called
whats_changing
I sold 450000 dollars to California and 610000 to New York this year: am I over a sales tax nexus threshold anywhere?
Tools called
am_i_over_the_line
sell_in_states
I am hiring my first employee in Ohio at 18 dollars an hour, 30 hours a week, starting 5 October: what wage, payroll-tax and new-hire report figures and dates apply?
Tools called
first_hire_costs
newhire_due_date
suta_estimate_suta
Check a new vendor before I pay them: EIN layout, bank routing number, whether the bank is FDIC-insured, and whether the business shows up in a state registry.
Tools called
vendor_check
We ship to Washington and Oregon customers now: what are the economic nexus thresholds, and the sales tax rate for our Washington address?
Tools called
sell_in_states
nexus_check_state_nexus
Am I a small business for NAICS 541511 with 1.8 million dollars of receipts, and what are the SBA 7(a) terms for a 300000 dollar loan?
Tools called
funding_check
We deposited 5000 dollars of payroll tax 14 days after the 15 September due date: what is the failure-to-deposit penalty, when does the next tier start, and which is the next Federal Reserve business day after a Saturday payment date?
Tools called
late_deposit_cost
taxcal_deposit_due_date
bizday_next_business_day
Does the BOI reporting rule still cover my Delaware LLC, and did my foreign bank accounts reach the FBAR threshold last year?
Tools called
reports_check_boi_duty
reports_check_fbar_duty

About

The single connector a US small business, or an agent host such as a small-business assistant, adds for the United States. It fronts the best tools of 29 deep ConnectorBay connectors (federal tax calendar, estimated tax, 1099 and payee checks, minimum wage, state unemployment wage bases, sales tax economic nexus, Washington address rates, annual report and franchise dates, new-hire reports, federal holidays and Federal Reserve closings, recalls that match the owner's watchlist, paid family and medical leave, payroll deposit penalties, SBA size and 7(a) terms, federal grants, Federal Register and tariff watches, FDIC, CFPB and state registry look-ups) under one endpoint, and adds nine composite tools that answer what an owner really asks: what is due, what changed, am I over the line, what does a first hire trigger, who is this vendor, where can I sell, what funding fits, what does a late deposit cost. Release 0.4.0 leaves out every component whose release review is still open: Form I-9 Section 2 dates, trademark maintenance, resale certificates, state base sales tax rates, California address rates, Colorado city rates, Texas local rate changes, CPSC eFiling dates, FEMA and SBA disaster declarations, workers' compensation lists, the New York Contractor Registry, contractor licence searches, the Texas sales tax permit listing, open tender feeds and IRS mileage rates; each such topic is answered in not_covered as not in this release, never guessed. Answers are compact: every source is listed once in a top-level table and every repeated caveat once; each item keeps its verification level and status. When a component fails, or the profile is outside what the hub can check (a state with no connector), the answer says so in not_checked and not_covered instead of guessing. Read-only: nothing is sent, paid, filed or registered.

Sources: Composed from the 29 required US connectors; each answer names its own sources (IRS, Department of Labor, state revenue, labor and corporation agencies, SBA, Grants.gov, Federal Register, eCFR, USITC HTS, FDIC, CFPB, CPSC, OPM and the Federal Reserve, state open-data registries).

Privacy

The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.

Data not collectedNo account, no profile, no stored prompts or results.

What it can do

25 tools, grouped by job. Every one is read-only or compute-only.

OpenAPI
Reference & guides25 tools
  • Monday briefThe scheduled Monday-morning brief for a US small business profile: what is due in the next days and what changed or is about to change (recalls…
  • Whats dueDated federal and state deadlines that apply to a US small business profile within a window (payroll deposits, returns, estimated tax, information…
  • Whats changingRule, rate and program changes for a US small business profile: minimum wage steps, Federal Register rule documents, tariff and HTS notices, sales…
  • Am i over the lineThreshold scan from figures the owner supplies: sales tax economic nexus by state, 1099 reporting threshold by payee, estimated-tax threshold and…
  • First hire costsWhat a first employee triggers in a US state: the minimum wage, the state unemployment wage base and new-employer rate, the most state…
  • Vendor checkBefore paying a new vendor or accepting a resale certificate: EIN layout, routing number check digit, W-9 and name consistency, plus open state…
  • Sell in statesFor each state a seller ships to: the economic nexus threshold and test, the position against the seller's own sales figures and, for a Washington…
  • Funding checkFunding and size checks for a US small business: the SBA size standard for a NAICS code and a test against your receipts or headcount, the…
  • Late deposit costWhat a late federal payroll tax deposit costs under the failure-to-deposit rule: the penalty tier and amount for the days late, the date the next…
  • Taxcal deposit due dateMonthly, semiweekly or $100,000 next-day payroll tax deposit due date for a payment date, with the semiweekly extra-day holiday rule.
  • Taxcal estimated tax datesThe four estimated tax payment dates for a tax year with the period each covers, shifted for weekends and holidays.
  • Limits get limitValue of a named limit for a tax year or a date, with its source, as-of date, effective dates and verification level.
  • Form1099 check 1099 requiredTest one payee's payments for the year against the 1099-NEC/MISC threshold in force for that payment year ($600 through 2025, $2,000 from 2026),…
  • Minwage get minimum wageReturn the general hourly minimum wage for a US state, DC, territory or covered city (Seattle, San Francisco, Los Angeles) on a date, with the…
  • Minwage check pay rateCompare a proposed hourly rate with the minimum that applies in a location on a date and return the shortfall per hour, if any.
  • Suta estimate sutaEstimate a new employer's annual state unemployment tax from a list of employee annual wages: taxable wages per employee up to the wage base times…
  • Nexus check state nexusCompare trailing sales and transaction count with one state's economic nexus threshold: crossed, at threshold, approaching, cannot determine or…
  • Annualrpt next dueReturn the next state filing deadline (annual report, franchise tax, LLC tax or biennial statement) for an entity from its formation date, with…
  • Annualrpt fees for entityReturn the verified filing fee, tax amount and related amounts for an entity type in a state, each with its verification level.
  • Reports check boi dutyWhether the FinCEN BOI reporting rule covers a company formed in the US or abroad, and the deadline for a foreign company.
  • Reports check fbar dutyWhether foreign financial accounts above the $10,000 aggregate threshold meet the FBAR rule for a calendar year, with the due dates.
  • Reports check form 8300Whether cash received in a trade or business, alone or with related payments, exceeds the $10,000 Form 8300 threshold.
  • Newhire due dateLast day to report a new hire: Texas 20 calendar days from the date the employee starts earning wages; other states get the federal 20-day outer…
  • Bizday next business dayFind the next business day after a date under a named calendar, listing the weekend and holiday days skipped.
  • Ach same day limit checkCheck an amount against the Nacha Same Day ACH per-entry limit that applies on a date ($1 million until 2027-09-16, $10 million from 2027-09-17).

Information

PublisherUnify Dynamics LLC
CategoryGovernment · Money & business · Work & productivity
LanguagesEnglish
Built forUnited States
CompatibilityAny MCP client · any agent · REST
Version0.4.0
MCP endpointhttps://us-smb.connectorbay.com/mcp
REST APIopenapi.json
SupportGet help · Status
CountryUnited States
FunctionsCompliance & risk, Invoicing & tax, Payroll & labor, Registration & licensing, Trade & customs, Funding & grants, Banking data
LayerCountry hubs

US Tariff Change Watch

Weekly check on whether the HTS revision changed, what moved on the HTS lines a small importer watches, and which new Federal Register tariff notices and presidential trade actions came out

Live · MCP + REST5 tools

US Reporting Triggers

Whether the US BOI, FBAR and Form 8300 reporting rules reach a business, with the dates each rule sets

Live · MCP + REST6 tools

US Monday Brief

The scheduled companion of the US Small Business Hub: five tools an agent can run every Monday, month or quarter for deadlines, changes, threshold and funding checks, with the same sourcing and honesty

Live · MCP + REST5 tools

US 1099 Readiness Check

Which contractors and payees reach the 1099-NEC/MISC threshold, whether an EIN is well-formed, and when the forms are due

Live · MCP + REST8 tools

US Taxability Matrix Guide

How the Streamlined Sales Tax taxability matrix is organised, where its official viewers are, the seller liability-relief wording with its date rule, and the steps the sources describe

Live · MCP + REST5 tools

California LLC Tax and Fee Calculator

California LLC $800 annual tax, income-based LLC fee, first-year exemption check and exact due dates (Form 3522, 3536, 568) for a tax year, each with its FTB source

Live · MCP + REST6 tools

Get US Small Business Hub

Free · No sign-in · Read-only

Streamable HTTP, stateless, no authentication. Paste the endpoint into any MCP-capable agent.

https://us-smb.connectorbay.com/mcp
{
  "mcpServers": {
    "us-smb": {
      "type": "http",
      "url": "https://us-smb.connectorbay.com/mcp"
    }
  }
}