# TCM Body Constitution Analysis API

> TCM Body Constitution Analysis API is a paid API for AI agents from api.cn402.com, paid per call via x402, $0.16/call, status unknown (last checked 2026-09-15).

Identifies a person's Traditional Chinese Medicine body constitution type from questionnaire answers and returns personalized health recommendations

## Facts

- Endpoint: GET https://api.cn402.com/tcm/constitution
- Price: $0.16/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-cn402-com-01115305
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GbypKjA4h796PaCg9aIMm

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 api-cn402-com-01115305
```

Example prompt: I filled out a TCM constitution questionnaire and my answers indicate frequent fatigue, cold hands and feet, pale complexion, and low energy — can you analyze my Chinese medicine body constitution type and give me health recommendations?

## When to prefer this

Use this endpoint when you need to classify a user's Traditional Chinese Medicine body type based on their self-reported symptoms and questionnaire responses, especially for apps focused on Chinese medicine, holistic wellness, or personalized health recommendations rooted in TCM principles. Prefer this over generic health APIs when the user context involves traditional Chinese medicine, the 9 constitution framework, or yin/yang/qi-based health analysis.

## Known failure modes

- Incomplete or missing questionnaire answers returns validation error
- Invalid answer format returns 400 bad request
- Insufficient answers to determine constitution type returns ambiguous result
- Payment failure (402) if USDC payment not included or insufficient
- Timeout if server is overloaded

## How this service works

TCM body constitution analysis (中医体质分析, 九种体质). Identifies 9 Traditional Chinese Medicine body types from questionnaire answers: yin deficiency (阴虚), yang deficiency (阳虚), qi deficiency (气虚), phlegm dampness (痰湿), damp heat (湿热), qi stagnation (气郁), blood stasis (血瘀), balanced, special constitution. Returns body type with health recommendations. For Chinese medicine, personalized health queries.

## Output

Returns the identified TCM body constitution type (one of the 9 types: balanced, qi deficiency 气虚, yang deficiency 阳虚, yin deficiency 阴虚, phlegm dampness 痰湿, damp-heat 湿热, blood stasis 血瘀, qi stagnation 气郁, or special constitution 特禀) along with a description and personalized health and lifestyle recommendations based on that constitution.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "mode": {
   "type": "string",
   "description": "Operation mode (optional)"
  },
  "answers": {
   "type": "string",
   "description": "Answers (optional)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-cn402-com-01115305/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.cn402.com](https://www.zero.xyz/host/api.cn402.com/llms.txt)