Discover / www.agenttax.io

AgentTax

Not checked

US sales tax calculation API for AI-agent commerce. Returns the combined state+local rate, taxability by work type, economic-nexus alerts and a confidence score for all 50 states + DC. Pay per call in USDC on Base via x402 ($0.005) or use an API key.

x402
Base
USDC
Finance

Checks: Not checked
In our index since: 14 Oct 2026

Endpoint

curl -i https://www.agenttax.io
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/www.agenttax.io

Questions

What payment terms does AgentTax advertise?

The listing advertises x402, Base and USDC. Check the seller's current payment challenge and authentication requirements before paying.

Where is AgentTax listed?

In x402-list.com. Superstables first indexed it on 14 Oct 2026.

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