# Bazaar Demand Niche Checker

> Bazaar Demand Niche Checker is a paid API for AI agents from audit.152-53-82-29.sslip.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Analyzes an x402 service niche by keyword query and returns market demand signals including buyer counts, price quartiles, top competitors, and a supply/demand verdict.

## Facts

- Endpoint: POST https://audit.152-53-82-29.sslip.io/v1/niche?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bazaar-demand-niche-checker-ec8ba45d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pQLRVBIXQxcYZ2glsbRX1

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 bazaar-demand-niche-checker-ec8ba45d -d '<json body>'
```

Example prompt: Before I build a PDF-to-Markdown conversion service on x402, can you check the bazaar niche for 'pdf to markdown' and tell me the verdict — empty, thin, contested, or dominated — along with how many paying buyers exist and what the price quartiles look like?

## When to prefer this

Use this endpoint when you need a fast, data-backed market signal for an x402 service niche before building or purchasing a service. It is uniquely suited for x402/bazaar market research because it draws directly from Coinbase discovery metrics covering real buyer transactions. Prefer it over general web search or manual browsing when you want structured demand verdicts, price quartiles, and ranked competitor data in a single call for micropayment API categories.

## Known failure modes

- Query string too long or exceeds 6 words — endpoint expects concise niche descriptors
- No matching listings found — verdict returns 'empty' with zero counts
- Limit parameter out of range (must be 1–25) — request rejected
- Stale data if queried immediately after a market change — metrics refresh every 6 hours
- Network or payment failure — x402 payment of $0.01 USDC must succeed before result is returned

## How this service works

Check an x402 niche before you build or buy. Send {"query":"pdf to markdown"}. Returns matching bazaar listings and hosts, how many have outside paying buyers in the last 30 days, max and median unique payers, price quartiles overall and among listings with demand, top listings and hosts by payers, and a verdict: empty, no-demand, thin-supply, contested, or incumbent-dominated. From Coinbase discovery metrics, refreshed every 6 hours.

## Output

Returns a structured analysis including: count of matching bazaar listings and hosts, number with outside paying buyers in the last 30 days, max and median unique payer counts, price quartiles for all listings and for demand-positive listings only, top listings and top hosts ranked by unique payers, and a categorical verdict (empty, no-demand, thin-supply, contested, or incumbent-dominated). Data is sourced from Coinbase discovery metrics and refreshed every 6 hours.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "maximum": 25,
   "minimum": 1,
   "description": "Top listings to return, default 10"
  },
  "query": {
   "type": "string",
   "description": "One to six words describing the service, for example pdf to markdown. Longer descriptions return the closest listings."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bazaar-demand-niche-checker-ec8ba45d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from audit.152-53-82-29.sslip.io](https://www.zero.xyz/host/audit.152-53-82-29.sslip.io/llms.txt)