# Chiro x402 — Chiropractic Knowledge Retrieval

> Chiro x402 — Chiropractic Knowledge Retrieval is a paid API for AI agents from api.chiro-x402.org, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-15).

Searches a 500K+ segment chiropractic knowledge corpus and returns structured clinical, wellness, and practice management answers via a pay-per-query x402 micropayment model.

## Facts

- Endpoint: POST https://api.chiro-x402.org/premium
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chiro-x402-chiropractic-knowledge-retrieval-e604cd0a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UfmYYJDYjBOsyaEwtW21d

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 chiro-x402-chiropractic-knowledge-retrieval-e604cd0a -d '<json body>'
```

Example prompt: Search the chiropractic knowledge base for best practices on handling an initial patient consultation — what should a chiropractor cover during that first visit?

## When to prefer this

Choose this endpoint when an AI agent needs authoritative, structured chiropractic domain knowledge — clinical protocols, patient care plans, practice management, or wellness strategies — without requiring API keys or account setup. It is best suited for agents that can execute x402 micropayments on Base mainnet and need on-demand, pay-per-query access to a large specialized chiropractic corpus rather than general web search.

## Known failure modes

- Insufficient USDC payment or failed x402 payment flow returns a 402 Payment Required error
- Query string too vague or outside chiropractic domain returns empty or low-confidence supplementary results
- Invalid topic_id or unrecognized canonical_topic may return a generic fallback answer
- Network congestion on Base mainnet may delay payment confirmation and response
- Malformed request body (missing query field) returns a 400 Bad Request

## How this service works

Paid AI-agent endpoint for searching 500K+ segments of general chiropractic knowledge. $0.05 USDC per query on Base mainnet. No API keys, no accounts — agents pay via x402 v2 protocol and receive structured results.

**Corpus:** Clinical protocols, wellness plans, marketing strategies, patient communication, practice management — sourced from general chiropractic training.

## Output

A structured markdown response containing a canonical answer to the query, the matched topic ID and canonical topic label, payment metadata (token, amount, network), and an array of supplementary results. The canonical answer is a detailed, formatted explanation sourced from the chiropractic training corpus.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "meta": {
   "type": "object"
  },
  "query": {
   "type": "string"
  },
  "payment": {
   "type": "object"
  },
  "topic_id": {
   "type": "string"
  },
  "canonical_topic": {
   "type": "string"
  },
  "canonical_answer": {
   "type": "string"
  },
  "supplementary_results": {
   "type": "array"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {
  "meta": {
   "rag_source": "http"
  },
  "query": "how do I handle a consultation",
  "payment": {
   "token": "USDC",
   "amount": "$0.15",
   "network": "base"
  },
  "topic_id": "consultation",
  "canonical_topic": "consultation",
  "canonical_answer": "# Consultation\n\n## Overview\n...",
  "supplementary_results": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chiro-x402-chiropractic-knowledge-retrieval-e604cd0a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.chiro-x402.org](https://www.zero.xyz/host/api.chiro-x402.org/llms.txt)