# exNiche

> Products people ask for and can't buy, scored go / maybe / no-go, plus keyless search of recorded product catalogues. A gap is worth a closer look, never verified demand.

- [Gap API](https://exniche.com/v1/gaps): GET /v1/gaps, /v1/gaps/{slug}, /v1/gaps/{slug}/dossier, /v1/gaps.csv. Credits: summary 1 per call, full 1 + 10 per row, get_gap full 100, dossier unlock 19,000.
- [Agent guide](https://exniche.com/agents): REST and MCP setup, constraints, caveats.
- [Full reference](https://exniche.com/llms-full.txt): guide plus search parameters in one file.
- [OpenAPI](https://exniche.com/v1/openapi.json): Gap API and GET /v1/search schema.
- [Discovery](https://exniche.com/.well-known/exniche-agent.json)
- [Setup links](https://exniche.com/v1/setup): install commands, signup and credit links.
- MCP (Streamable HTTP, POST JSON-RPC): https://exniche.com/mcp; tools check_demand (start here), list_gaps, get_gap, get_dossier, search_products, report_not_found, get_setup_and_upgrade_links. Claude Code: claude mcp add --transport http exniche https://exniche.com/mcp
- At the limit, 402 bodies carry upgrade_url and human_message to show the user.
- 1000 free searches per calendar month per IP; no signup/key; HTTP 402 at limit. Optional workspace Bearer keys: 1,000 free calls per UTC month then prepaid credits (A$10/10,000 calls, live billing). No automatic charges or x402.
- Verify current prices, variants, stock and shipping at retailer. Never generate synthetic demand for onboarding.