# x402-seller Market Brief

> x402-seller Market Brief is a paid API for AI agents from x402-seller-m8nx.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns a market regime brief and macro context for a given symbol, paying $0.03 USDC per call via x402 with no API key required.

## Facts

- Endpoint: GET https://x402-seller-m8nx.onrender.com/brief
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-seller-market-brief-edff08b2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kMczeo8EwN4Va0HJhWRAa

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 x402-seller-market-brief-edff08b2
```

Example prompt: Give me a market regime brief for BTC — is it bullish, bearish, or in a risk-off phase right now?

## When to prefer this

Choose this endpoint when an autonomous trading agent needs a single, fast, keyless market regime signal for a specific symbol without stitching together multiple macro data sources. Ideal for agents that make regime-conditional decisions (e.g. only trade in trending markets) and want a $0.03 cost-per-call briefing rather than maintaining subscriptions to multiple data providers.

## Known failure modes

- Invalid or unrecognized symbol returns empty or error response
- Payment failure via x402 if USDC balance is insufficient or wallet not configured
- Stale data if upstream price feeds are delayed
- Generic 500 error if backend service on Render is temporarily unavailable
- Symbol omitted from query returns a generic or default brief

## How this service works

Rug protection and decision-ready intelligence for autonomous trading agents. Keyless by design: no signup, no API key — pay a cent per request in USDC (x402). The /alpha/launches LAUNCH RADAR discovers what just launched AND rug-screens every candidate in one call, ranked per-token verdicts — the proactive 'give me safe alpha' call. /vet gives a single-token go/no-go in ONE call by fusing a COMPOSITE rug score (GoPlus static analysis + a LIVE Honeypot.is buy/sell simulation + serial-rugger check) with our SELF-COLLECTED liquidity-drain trend — a rug-in-progress signal that exists nowhere for free because it requires collecting reserves over time. One call is cheaper than the inference tokens you'd burn stitching 4 free APIs, and it stops your agent losing its whole position to a honeypot. Also: /onchain/liquidity drain detector, /screen batch watchlist check, /brief market regime, and raw feeds (prices, stocks, DEX pools, launches, perp funding/OI).

## Output

A structured market regime brief for the requested symbol, including macro context signals, trend characterization (e.g. bullish/bearish/risk-off), and any relevant market condition indicators to inform trading decisions.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "why": [
   "24h move +0.4%",
   "funding 10.95% annualized — balanced",
   "sentiment 25/100 (Extreme Fear)"
  ],
  "regime": "neutral",
  "symbol": "BTC",
  "price_usd": 63950,
  "sentiment": {
   "label": "Extreme Fear",
   "value": 25
  },
  "derivatives": {
   "positioning": "neutral",
   "funding_annualized_pct": 10.95
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-seller-market-brief-edff08b2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-seller-m8nx.onrender.com](https://www.zero.xyz/host/x402-seller-m8nx.onrender.com/llms.txt)