# NEXUS Agent Services – Crypto Micro Signals

> NEXUS Agent Services – Crypto Micro Signals is a paid API for AI agents from nexus-agent-xa12.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-16).

Returns a pay-per-call micro trading signal (NEUTRAL/BULLISH/BEARISH) with a confidence score for a given crypto symbol (BTC, ETH, SOL)

## Facts

- Endpoint: GET https://nexus-agent-xa12.onrender.com/v1/signals/micro
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexus-agent-services-crypto-micro-signals-13f1b39e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LWBhlF0EFnGcCrW9LVshl

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 nexus-agent-services-crypto-micro-signals-13f1b39e
```

Example prompt: What's the current micro signal and confidence score for BTC right now — is it bullish, bearish, or neutral?

## When to prefer this

Use this endpoint when you need a fast, cheap ($0.01), on-demand directional signal (BULLISH/BEARISH/NEUTRAL) with a confidence score for BTC, ETH, or SOL. Prefer this over full market data APIs when you just need a lightweight sentiment/signal indicator, not raw price feeds or detailed analytics.

## Known failure modes

- Unsupported symbol (only BTC, ETH, SOL are valid) returns an error or empty result
- Missing 'symbol' query param may return a default or error
- x402 payment failure if USDC balance is insufficient or wallet not configured
- Service may be down or cold-starting on Render free tier (slow first response)
- Rate limiting or quota errors if called too frequently

## How this service works

Pay-per-call financial data. Streamable HTTP MCP. x402 USDC on Base. Not financial advice.

## Output

A JSON object with three fields: 's' (the symbol, e.g. 'BTC'), 'sig' (the signal direction: NEUTRAL, BULLISH, or BEARISH), and 'c' (a confidence float between 0 and 1). Costs $0.01 USDC per call via x402 on Base.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "symbol": {
       "type": "string",
       "description": "BTC, ETH, SOL"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "c": 0.5,
  "s": "BTC",
  "sig": "NEUTRAL"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nexus-agent-services-crypto-micro-signals-13f1b39e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nexus-agent-xa12.onrender.com](https://www.zero.xyz/host/nexus-agent-xa12.onrender.com/llms.txt)