INTEGRATIONS
Drop AgentTax into the rails your agents already speak.
One API. Every agent framework, payment protocol, and SDK we’ve shipped. Free tier on every integration — 100 calls/month, no credit card.
Agent framework
LangChain
Native @tool wrapper for LangChain agents. Resolve sales tax before invoicing.
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Agent framework
CrewAI
Drop-in tax tool for multi-agent CrewAI workflows. B2B exemption detection included.
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Protocol
MCP Server
Five-tool Model Context Protocol server. calculate_tax, get_rate, check_nexus, list_classifications, explain_policy.
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Payment rail
x402
Tax compliance for x402 USDC settlements. Records every micropayment across 51 jurisdictions.
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Payment rail
PayAI
Drop-in tax layer for PayAI Network merchants. Base, Polygon, Avalanche, Sei, X Layer, Solana.
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Payment rail
SKALE
Gasless x402 tax compliance on SKALE. Sub-cent settlement volumes Avalara and Stripe Tax can't economically serve.
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SDK
Ampersend
npm install @agenttax/ampersend. One-line wrapper for Ampersend x402 payments.
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Don’t see your stack?
Every integration on this page is the same REST API under the hood. Read the API docs and you can wire AgentTax into anything that speaks HTTP — in the time it takes to read a curl example.