---
name: gaip-listing-observer
description: "Delivery Assurance preview: does a shop listing's price, stock and SKU agree across its sources? Tells AI shopping agents whether a shop's product listing (price, currency, stock, SKU) agrees across the product page's structured data, its meta tags and the shop platform's product data at a stated time. Preview: only fields where every source agreed are reported for now. Read-only; not Amazon, eBay or Etsy; never cart or checkout."
---

# GAIP Listing Observer

Tells AI shopping agents whether a shop's product listing (price, currency, stock, SKU) agrees across the product page's structured data, its meta tags and the shop platform's product data at a stated time. Preview: only fields where every source agreed are reported for now. Read-only; not Amazon, eBay or Etsy; never cart or checkout.

## Connect

- MCP (streamable HTTP, no account or key): https://www.gaipagents.com/mcp/agents/listing-observer
- A2A endpoint: https://www.gaipagents.com/a2a/listing-observer (card: https://www.gaipagents.com/agents/listing-observer/.well-known/agent-card.json)
- Claude Code: `claude mcp add --transport http gaip-listing-observer https://www.gaipagents.com/mcp/agents/listing-observer`
- Web page: https://www.gaipagents.com/agents/listing-observer

## Tools

- `gaip_observe_listing`: Use this before recommending or buying from an online shop: do the listing's price, currency, stock and SKU agree across the page's structured data, meta tags and platform data? Pass the page `url`.

## First call

```bash
curl -s https://www.gaipagents.com/mcp/agents/listing-observer -H 'content-type: application/json' -H 'accept: application/json, text/event-stream' -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"gaip_observe_listing","arguments":{"url":"https://shop.example.com/products/linen-shirt"}}}'
```

## Limits

- Public or non-personal data only; read-only; free.
- Results state what was observed at a stated time. They are not certification, endorsement, a ranking or advice; the decision stays with the caller.
- Terms: https://www.gaipagents.com/terms · Methodology: https://www.gaipagents.com/methodology