US Sales Tax Economic Nexus Check

io.github.Nero-Engine/us-sales-tax-nexusVersion 1.0.0

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

Status

Responds150 msNov 14, 2026, 14:40 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:40 UTC
Latency: 150 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://us-sales-tax-nexus.nerolabs.workers.dev/mcpResponds150 msNov 14, 2026, 14:40 UTC

No sign-in

Claude Code

claude mcp add --transport http us-sales-tax-nexus https://us-sales-tax-nexus.nerolabs.workers.dev/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: us-sales-tax-nexus
Remote MCP server URL: https://us-sales-tax-nexus.nerolabs.workers.dev/mcp

Cursor

{
  "mcpServers": {
    "us-sales-tax-nexus": {
      "url": "https://us-sales-tax-nexus.nerolabs.workers.dev/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"us-sales-tax-nexus","type":"http","url":"https://us-sales-tax-nexus.nerolabs.workers.dev/mcp"}'

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Tools

4 tools

Tools of US Sales Tax Economic Nexus Check
	Description		Read-only	Idempotent	Open world
`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 sales made through marketplaces such as Amazon or Etsy. Returns states where the seller is over the economic nexus threshold (must register), states close to it (80 percent or more), states under it, and for each the threshold, the measurement period the state uses, what sales count (gross, retail or taxable only), whether marketplace sales count, when registration must happen, and the state revenue department source. Unclear cases give the SAFE answer (treated as over) with what it depends on. Free.	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 sales made through marketplaces such as Amazon or Etsy. Returns states where the seller is over the economic nexus threshold (must register), states close to it (80 percent or more), states under it, and for each the threshold, the measurement period the state uses, what sales count (gross, retail or taxable only), whether marketplace sales count, when registration must happen, and the state revenue department source. Unclear cases give the SAFE answer (treated as over) with what it depends on. Free.	Not declared	Not declared	Not declared	Not declared
`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.	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.	Not declared	Not declared	Not declared	Not declared
`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.	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.	Not declared	Not declared	Not declared	Not declared
`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.	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.	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Oct 10, 2026
Updated: Oct 10, 2026
Website: https://us-sales-tax-nexus.nerolabs.workers.dev/⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): CRMSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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