# StableJack Market Calculator

> StableJack Market Calculator is a paid API for AI agents from ai.stable-jack.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Retrieves a market calculator tool for financial computations via StableJack's agent-ready research API.

## Facts

- Endpoint: POST https://ai.stable-jack.com/x402/tools/market_calculator
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablejack-market-calculator-c3c5738f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sDk7D4dsC1ISX9puIHH9C

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 stablejack-market-calculator-c3c5738f -d '<json body>'
```

Example prompt: Can you use StableJack's market calculator to run the numbers on BTC — I want to see the computed market metrics for it right now?

## When to prefer this

Choose this endpoint when you need computed market calculations — such as pricing, valuation metrics, or quantitative financial outputs — for a specific asset or instrument via StableJack's research API. Prefer it over raw data endpoints when you need processed, calculator-style results rather than raw data feeds or news.

## Known failure modes

- Missing required calculation parameters returns an error
- Invalid or unrecognized asset symbol causes a failed lookup
- Payment of $0.05 USDC not fulfilled results in 402 response
- Rate limiting or service unavailability returns a timeout or 5xx error
- Unsupported instrument type may return empty or null results

## How this service works

Retrieve market calculator through StableJack's agent-ready research API.

## Output

Returns a market calculator tool output containing computed financial metrics, pricing data, and quantitative results for the queried asset or market instrument.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablejack-market-calculator-c3c5738f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ai.stable-jack.com](https://www.zero.xyz/host/ai.stable-jack.com/llms.txt)