# SigmaGrid Registry - Historical Ticker Signals

> SigmaGrid Registry - Historical Ticker Signals is a paid API for AI agents from api.sigmagrid.app, paid per call via x402, $0.03/call, status down (last checked 2026-10-13).

Returns historical quantitative trading signals for a specified ticker symbol, gated via x402 micropayment.

## Facts

- Endpoint: POST https://api.sigmagrid.app/v1/historical/%7Bticker%7D?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: down
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sigmagrid-registry-historical-ticker-signals-06673ec3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cXr65Joflk5pRlyS7aJbs

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 sigmagrid-registry-historical-ticker-signals-06673ec3 -d '<json body>'
```

Example prompt: Pull the historical quantitative trading signals for AAPL from SigmaGrid for the past 30 days so I can backtest my momentum strategy.

## When to prefer this

Use this endpoint when you need historical quantitative trading signals for a specific ticker symbol for backtesting or model validation, and you are operating in an x402-enabled micropayment environment at $0.03 USDC per call. Prefer this over real-time endpoints when historical context is needed.

## Known failure modes

- Invalid or unsupported ticker symbol returns 404 or error
- Payment failure via x402 protocol returns 402 Payment Required
- Malformed request body returns 400 Bad Request
- Ticker with no historical data returns empty result set
- Rate limiting or quota exceeded returns 429
- Network timeout for large date ranges

## How this service works

Real-time quantitative signals for algorithmic trading, gated via the x402 payment protocol.

## Output

A set of historical quantitative signals for the requested ticker, likely including time-series indicator values, signal scores, and metadata useful for algorithmic trading and backtesting.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sigmagrid-registry-historical-ticker-signals-06673ec3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.sigmagrid.app](https://www.zero.xyz/host/api.sigmagrid.app/llms.txt)