# Sally Health Advice Agent (Heurist)

> Sally Health Advice Agent (Heurist) is a paid API for AI agents from mesh.heurist.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Answers general health and medical questions using an AI assistant powered by Heurist's Sally agent

## Facts

- Endpoint: POST https://mesh.heurist.xyz/x402/solana/agents/SallyHealthAgent/ask_health_advice
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mesh-heurist-xyz-31ab1b8f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EOAk7oLuLo6nK7Ozf2Jb8

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 mesh-heurist-xyz-31ab1b8f -d '<json body>'
```

Example prompt: Can you ask Sally, the health AI assistant, what are some common symptoms of iron deficiency anemia and how it's typically diagnosed?

## When to prefer this

Use this endpoint when a user needs general health or medical information, symptom explanations, wellness guidance, or educational medical content. Prefer this over a generic LLM when you want a medically-focused AI persona (Sally) with consistent health domain framing. Not suitable for actual medical diagnosis, prescriptions, or emergency guidance.

## Known failure modes

- Missing required 'question' field returns a validation error
- Overly vague or empty questions may return generic or unhelpful responses
- Questions requesting specific diagnoses or prescriptions may be deflected with a disclaimer
- Payment failure or insufficient USDC balance may block the request
- Rate limiting or network issues on the Heurist mesh may cause timeouts

## How this service works

Sally is a health and medical AI assistant. This tool talks to Sally about medical and health topics.

## Output

A natural-language response providing general health advice, medical explanations, or wellness guidance related to the submitted question. The response is informational and not a substitute for professional medical care.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "message"
     ],
     "properties": {
      "debug": {
       "type": "boolean",
       "default": false,
       "description": "Debug mode flag. ALWAYS use false."
      },
      "message": {
       "type": "string",
       "description": "Message in natural language to talk to Sally agent. It can be a question or a prompt for information about health and medical topics."
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "result": {
       "type": "object",
       "additionalProperties": true
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mesh-heurist-xyz-31ab1b8f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mesh.heurist.xyz](https://www.zero.xyz/host/mesh.heurist.xyz/llms.txt)