# Gamma Sonar — Options GEX & Pin Risk Map

> Gamma Sonar — Options GEX & Pin Risk Map is a paid API for AI agents from mcp-x402.onrender.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-25).

Returns dealer gamma exposure (GEX) analysis for a US equity including long/short gamma regime, zero-gamma flip line, call/put walls, max-OI pin magnet, and the full per-strike GEX ladder from live option chains.

## Facts

- Endpoint: GET https://mcp-x402.onrender.com/gate/squeezeos/api/gamma-sonar/AAPL?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-25
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gamma-sonar-options-gex-pin-risk-map-f71fb9ef
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0TitaI0DsW5XYm7CB7ju3

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 gamma-sonar-options-gex-pin-risk-map-f71fb9ef
```

Example prompt: Pull up the Gamma Sonar analysis for AAPL — I want to see the gamma flip line, whether dealers are long or short gamma, and where the call and put walls are sitting right now.

## When to prefer this

Choose this endpoint when you need structured, quantitative options gamma exposure data for a specific US equity — particularly for identifying key dealer hedging levels, understanding whether price moves will be amplified or dampened, locating expiration pin risk zones, or building options-aware trading signals. Prefer this over raw options chain APIs when you want pre-computed GEX analytics rather than raw open interest data.

## Known failure modes

- Invalid or unrecognized ticker symbol returns an error
- Ticker has no listed options (e.g. non-optionable stock) returns empty or error
- Tradier API unavailable or rate-limited causes upstream failure
- Market closed or no live chain data available may return stale or null values
- Payment not processed (x402 protocol failure) blocks access

## How this service works

Gamma Sonar — dealer gamma exposure (GEX) and pin-risk map for one underlying: long/short gamma regime, zero-gamma flip line, call/put walls, max-OI pin magnet, and the full per-strike GEX ladder from live Tradier option chains.

## Output

A JSON object containing: the current gamma regime classification (long/short gamma), the zero-gamma flip price level, identified call wall and put wall strike prices, the max open-interest pin magnet strike, and a full per-strike GEX ladder showing dealer gamma exposure across the option chain — all derived from live Tradier option chain data for the requested underlying.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "symbol": {
       "type": "string"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gamma-sonar-options-gex-pin-risk-map-f71fb9ef/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-x402.onrender.com](https://www.zero.xyz/host/mcp-x402.onrender.com/llms.txt)