# SigmaGrid Registry - Premium Quantitative Signals

> SigmaGrid Registry - Premium Quantitative Signals is a paid API for AI agents from api.sigmagrid.app, paid per call via x402, $0.02/call, status down (last checked 2026-10-13).

Returns real-time quantitative trading signals for a given ticker symbol, gated via x402 micropayment

## Facts

- Endpoint: POST https://api.sigmagrid.app/v1/premium/%7Bticker%7D?utm_source=zero.xyz
- Price: $0.02/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-premium-quantitative-signals-f94eaa02
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZpANWSPvrbYdG6QBrCa_R

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-premium-quantitative-signals-f94eaa02 -d '<json body>'
```

Example prompt: Pull the latest SigmaGrid premium quant signals for AAPL — I need the real-time indicators for my algo trading strategy.

## When to prefer this

Use this endpoint when an AI agent or algorithmic trading system needs real-time quantitative signals for a specific ticker and can authorize micropayments via the x402 protocol. Best suited for automated trading bots, quant strategy pipelines, or signal aggregation systems that process individual ticker requests per call.

## Known failure modes

- Payment not provided or invalid x402 payment token — 402 Payment Required
- Invalid or unrecognized ticker symbol — 400 Bad Request or 404 Not Found
- Ticker not covered by SigmaGrid — 404 or empty signal response
- Rate limiting or abuse detection — 429 Too Many Requests
- Service downtime or signal computation failure — 503 Service Unavailable

## How this service works

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

## Output

Returns real-time quantitative signals and algorithmic trading indicators for the requested ticker symbol, delivered after x402 micropayment of $0.02 USDC is processed.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sigmagrid-registry-premium-quantitative-signals-f94eaa02/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)