# OmniAPI Tax Estimate

> OmniAPI Tax Estimate is a paid API for AI agents from omni-api-cyan.vercel.app, paid per call via x402, $0.124877/call, status unknown (last checked 2026-09-15).

Estimates tax liability based on provided financial query or input data

## Facts

- Endpoint: POST https://omni-api-cyan.vercel.app/api/finance/tax/estimate
- Price: $0.124877/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/omniapi-tax-estimate-79ad50c5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IAOKyysdXwWSfGcehEvwo

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability omniapi-tax-estimate-79ad50c5 -d '<json body>'
```

Example prompt: Can you estimate the tax I'd owe on $85,000 of freelance income this year, assuming I'm a single filer in the US?

## When to prefer this

Use this endpoint when you need a quick, on-demand tax estimation without integrating a full accounting platform. Best suited for lightweight tax liability queries, freelance income estimates, or crypto gain calculations where approximate figures are acceptable. Not a replacement for certified tax software or professional tax advice.

## Known failure modes

- Missing required 'query' field returns validation error
- Ambiguous or unsupported query format may return generic or empty result
- Insufficient financial detail in query may produce inaccurate estimates
- Payment failure in USDC via x402 results in 402 Payment Required response
- Malformed params object may cause processing error

## How this service works

444 endpoints across 9+ chains. Crypto, AI, Social, Finance, Weather, Tools. Pay per call in USDC via x402 with 4 facilitators: Dexter, Meridian, FluxA, GoPlausible.

## Output

Returns a computed tax estimate based on the input query, likely including estimated tax amounts, applicable rates, or liability breakdowns derived from the provided financial data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "input": {
   "type": "string",
   "description": "Input data for the endpoint"
  },
  "query": {
   "type": "string",
   "description": "Search query or input text"
  },
  "params": {
   "type": "object",
   "description": "Additional parameters"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/omniapi-tax-estimate-79ad50c5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from omni-api-cyan.vercel.app](https://www.zero.xyz/host/omni-api-cyan.vercel.app/llms.txt)