# SigmaGrid Alpha Snapshot

> SigmaGrid Alpha Snapshot 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 real-time quantitative alpha signals for a given ticker symbol, gated via the x402 micropayment protocol at $0.03 USDC per call.

## Facts

- Endpoint: POST https://api.sigmagrid.app/v1/alpha-snapshot/%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-alpha-snapshot-06dfd31c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_05uelQHvi7-TIcFZ2pq32

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-alpha-snapshot-06dfd31c -d '<json body>'
```

Example prompt: Pull the latest alpha snapshot from SigmaGrid for NVDA — I need the quantitative trading signals before I decide whether to enter a position.

## When to prefer this

Use this endpoint when you need real-time quantitative alpha signals for a specific ticker to inform algorithmic or discretionary trading decisions, especially when integrated into a micropayment-enabled agent workflow using the x402 protocol. Prefer this over static fundamental data APIs when recency and signal-based scoring matter.

## Known failure modes

- Payment not included or insufficient — returns HTTP 402 requiring x402 payment
- Invalid or unrecognized ticker symbol — returns 4xx error
- Ticker not covered by SigmaGrid data universe — empty or error response
- Network timeout if signal computation exceeds latency budget
- Rate limiting if too many requests in a short window

## How this service works

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

## Output

A snapshot of real-time quantitative alpha signals for the requested ticker, likely including momentum scores, signal strength, directional indicators, or factor-based alpha values useful for algorithmic trading decisions.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sigmagrid-alpha-snapshot-06dfd31c/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)