# Chiro x402 — Chiropractic Knowledge Retrieval (Speaking)

> Chiro x402 — Chiropractic Knowledge Retrieval (Speaking) is a paid API for AI agents from api.chiro-x402.org, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).

Searches a corpus of 500K+ chiropractic knowledge segments covering clinical, marketing, patient communication, and practice management topics, paid via x402 micropayment on Base mainnet.

## Facts

- Endpoint: POST https://api.chiro-x402.org/premium/speaking
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chiro-x402-chiropractic-knowledge-retrieval-speaking-42babe1b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kJ9O2xLpoTVTyvubz8Bz8

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-speaking-42babe1b -d '<json body>'
```

Example prompt: Search the chiropractic knowledge base for best practices around patient communication after an initial spinal assessment — I need structured content I can use in a wellness plan.

## When to prefer this

Choose this endpoint when you need domain-specific chiropractic knowledge — clinical, wellness, marketing, or practice management — and want to pay per query without API keys or account setup. It is best suited for AI agents that can handle x402 micropayments on Base mainnet and need targeted chiropractic content rather than general medical or broader healthcare knowledge.

## Known failure modes

- Payment failure: insufficient USDC balance or invalid x402 payment token returns an authorization error
- Network mismatch: payment submitted on wrong network (not Base mainnet) results in rejection
- Empty results: highly specific or out-of-scope queries may return no matching segments
- Rate limiting: repeated rapid queries may be throttled
- Malformed payment object: missing token, amount, or network fields causes a 400-level error

## 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

Structured segments of chiropractic knowledge text relevant to the query, drawn from a corpus covering clinical protocols, wellness plans, marketing strategies, patient communication, and practice management. Results are returned as structured data after successful x402 USDC payment on Base mainnet.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "payment": {
   "type": "object",
   "properties": {
    "token": {
     "type": "string"
    },
    "amount": {
     "type": "string"
    },
    "network": {
     "type": "string"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chiro-x402-chiropractic-knowledge-retrieval-speaking-42babe1b/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)