# StableJack Market Price Charts

> StableJack Market Price Charts is a paid API for AI agents from ai.stable-jack.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Retrieves historical market price data and chart series for a listed security by symbol.

## Facts

- Endpoint: POST https://ai.stable-jack.com/x402/tools/market_price_charts
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablejack-market-price-charts-863c2455
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_utiunp97CMkJWHjx3w1dM

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-price-charts-863c2455 -d '<json body>'
```

Example prompt: Pull the historical market price chart for AAPL from StableJack so I can see how it's moved over time.

## When to prefer this

Choose this endpoint when you need structured historical market price data for a specific security (stock, crypto, ETF) from StableJack's research API, especially in agent workflows that require price series for charting, backtesting, or trend analysis. Prefer it over generic market data APIs when you are already operating within the StableJack ecosystem and want consistent, agent-ready data with x402 micropayment billing.

## Known failure modes

- Symbol not found or not listed — returns error if ticker is unsupported
- Missing required parameters (endpoint or symbol) — returns validation error
- Payment failure — x402 payment of $0.05 USDC not processed, request rejected
- Rate limit or quota exceeded — too many requests in a short window
- Data unavailable for a specific date range or asset class

## Output

Returns a historical price chart series for the requested security symbol, including time-stamped price data points (likely OHLCV or close prices) suitable for charting, analysis, or backtesting workflows.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablejack-market-price-charts-863c2455/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)