# Nyne.ai Checkseller

> Nyne.ai Checkseller is a paid API for AI agents from Nyne.ai at mpp.orthogonal.com, paid per call via MPP, $0.148/call, status unknown (last checked 2026-10-10).

Asynchronously checks whether a specific company sells a given product or service, returning a request ID for polling results.

## Facts

- Endpoint: POST https://mpp.orthogonal.com/nyne/company/checkseller?utm_source=zero.xyz
- Price: $0.148/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Provider: Nyne.ai
- Docs: https://api.nyne.ai
- Website: https://api.nyne.ai
- Tags: people, company, enrichment, contacts, data
- Canonical page: https://www.zero.xyz/c/nyne-ai-checkseller-cd06916d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xN8bQRvTFKspsrPeUOWU5

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 nyne-ai-checkseller-cd06916d -d '<json body>'
```

Example prompt: Can you check whether Acme Corp sells CRM software? I need to know if they're actually in that market before I reach out to them.

## When to prefer this

Use this endpoint when you need to programmatically qualify whether a specific company is a seller or provider of a particular product or service — especially useful for sales prospecting, competitive intelligence, or lead qualification workflows where you need to filter companies by their offering before outreach.

## Known failure modes

- Company not found in Nyne.ai database — returns empty or no-match result
- Invalid or missing company identifier — returns 400 bad request
- Product/service term too vague or ambiguous — low confidence or inconclusive result
- Async job timeout — requestId expires before result is ready
- Upstream data source unavailable — delayed or failed enrichment

## How this service works

Start async check if a company sells a specific product/service.

## Output

Returns a requestId that can be used to poll for the async result, which will indicate whether the specified company sells or offers the given product or service.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nyne-ai-checkseller-cd06916d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.orthogonal.com](https://www.zero.xyz/host/mpp.orthogonal.com/llms.txt)