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BlackBobs.ai Sales Tax Calculator
x402
BlackBobs.ai Sales Tax Calculator is a paid API for AI agents from blackbobs-ai.vercel.app, paid per call via x402, $0.186778/call, status unknown (last checked 2026-09-14).
Calculates sales tax for a given transaction, returning applicable tax rates and amounts
Price / call$0.186778
Success—
StatusUnknown
How this service works
194 production-ready API endpoints. AI, Search, Social, Finance, Crypto. Pay-per-call with x402 on Base chain.
Output
Returns a result object containing the computed sales tax rate, the tax amount for the given transaction, and potentially a breakdown by jurisdiction (state, county, city). The response follows the standard envelope with a 'result' containing the data object.
Example use cases
E-commerce checkout tax calculation
“I need to calculate the sales tax on a $349.99 electronics purchase shipping to a customer in Seattle, Washington — what's the tax amount and final total?”
Small business invoice compliance
“What's the sales tax I need to add to a $2,500 service invoice for a client based in Chicago, Illinois so I can make sure my billing is compliant?”
Multi-state sales tax comparison
“Can you tell me the sales tax rate for a $500 purchase in New York City versus Miami, Florida so I can compare the total cost to my customer in each location?”
Technical details
Endpoint
POSThttps://blackbobs-ai.vercel.app/api/sales-tax-calculatorWhen to prefer
Choose this endpoint when you need a quick, pay-per-call sales tax computation without committing to a subscription-based tax service. It is well-suited for AI agents handling ad-hoc invoice generation, e-commerce checkout enrichment, or financial calculations where exact tax compliance is needed on-demand and cost-per-call pricing via x402 on Base chain is acceptable.
Side effects
- Missing or invalid location input returns an error or empty result
- Unsupported jurisdiction or region not covered by the tax database
- Malformed request body causes a 400-level error
- Network or upstream service timeout returns a 5xx error
- Ambiguous location (e.g. city name without state) may return incorrect or no results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| result | object | API response data |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| result | object | API response data |
Tags
x402
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