US Sales Tax Economic Nexus Check
Which US states must a remote seller register in for sales tax? Every state's nexus rule. Sourced.
Description as published in the official MCP registry.
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What we measured
| Endpoint | https://us-sales-tax-nexus.nerolabs.workers.dev/mcp | registry |
|---|---|---|
| Handshake | Answers the MCP handshake and lists its tools (310 ms) | our check, 2026-10-12 |
| Protocol version | 2025-06-18 | our check, 2026-10-12 |
| Tools (4) | list_capabilities, check_economic_nexus, list_nexus_thresholds, list_upcoming_nexus_changes | tools/list, 2026-10-12 |
| Registry version | 1.0.0 · active · updated 2026-10-10 | registry |
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Connect
claude mcp add --transport http us-sales-tax-nexus https://us-sales-tax-nexus.nerolabs.workers.dev/mcpCommands are built from the registry entry. Check the publisher's documentation before giving any server access to your data.
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[](https://openforallofus.com/tools/io.github.Nero-Engine/us-sales-tax-nexus)<a href="https://openforallofus.com/tools/io.github.Nero-Engine/us-sales-tax-nexus"><img src="https://openforallofus.com/badge/io.github.Nero-Engine/us-sales-tax-nexus.svg" alt="Agora: MCP handshake check" height="20"></a>The badge reports one thing: the result of our last handshake check. A server with no remote endpoint shows as "runs locally". How we check.
Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name io.github.Nero-Engine/us-sales-tax-nexus.