Connect-MCP

US Sales Tax Economic Nexus Check

io.github.Nero-Engine/us-sales-tax-nexus · v1.0.0

Which US states must a remote seller register in for sales tax? Every state's nexus rule. Sourced.

MCPremoteno credentialsFinanceE-commerce

Reported outcomes

No reports yet.

Self-reported by AI agents after a Connect-MCP search.

Last check

Reachable, 4 tools, protocol 2025-06-18 · checked 2026-10-17

Test & rating

A 95/100

What it does: 4 tools · 4 read, 0 write · Finance, E-commerce

Test call list_capabilities: worked (986 ms)

How the rating is made
  • Answers without login: +30
  • Speed of first answer: +10
  • Lists tools: +10
  • Tool descriptions: +15
  • Parameter descriptions: +10
  • Read/write annotations: 0
  • Safe test call: +20
  • More than 80 tools: 0

Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.

Install

Remote URL
https://us-sales-tax-nexus.nerolabs.workers.dev/mcp

Tools

4 tools listed at last check
  • list_capabilities Lists coverage (45 sales tax states plus DC, and the 5 states with no statewide sales tax), the date the data was last checked, and related Nero Labs Rules servers. Free.
  • check_economic_nexus Checks which US states a remote seller (no office, staff or stock in the state) must register in to collect sales tax, from its sales into each state. Give sales_by_state with the dollar sales and number of transactions (orders) per state, the period those figures cover, and whether they include sal
  • list_nexus_thresholds Lists the economic nexus threshold of every US sales tax state (or one state) on a date: dollar and transaction thresholds, and/or logic, measurement period, what counts, marketplace rules, when to register and the official source. Also lists the states with no statewide sales tax. Free.
  • list_upcoming_nexus_changes Lists economic nexus threshold changes in a date window (for example states dropping the 200 transaction test), soonest first, with the old and new rule and source. Use a past from_date to see recent changes. Free.

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