AgentTax

AgentTax is a tax engine for agentic commerce. It provides real-time sales tax calculation, economic nexus monitoring, and 1099-DA reporting for AI agent transactions across 50 states, the District of Columbia, and 105 local jurisdictions.

Its calculation flow returns tax amount, rate, jurisdiction, classification, and a confidence score in a single API call. The service says it is built for agent-to-agent transactions and for machine callers at machine speed rather than human checkout flows. Other named features include daily updates against seven independent sources, AI-specific classification rules, B2B exemptions, and per-state taxability matrices. It also includes economic nexus monitoring with per-agent revenue tracking across 45 sales-tax states and automatic alerts at 80% of each state’s Wayfair threshold. A capital gains tracker supports FIFO, LIFO, and Specific ID cost basis methods, with realized gain or loss on each sale and 1099-DA export readiness. The product also records an audit trail for each calculation, including the jurisdiction chain, exemptions evaluated, classification basis, and policy references.

AgentTax supports x402, Stripe, MPP, MCP, LangChain, CrewAI, and Ampersend, and it is described as protocol agnostic, with tax compliance operating as a layer above the payment protocol. The developer documentation shows a REST API and a POST /api/v1/calculate endpoint, and the page also mentions installation with pip install agenttax. It offers a free start and links to documentation and a demo.

The entry identifies AgentTax as a transparent tax engine for agentic commerce.