GAIP Listing Observer

io.github.tjcgraham-rgbPublished by GitHub account tjcgraham-rgbv1.5.0Updated Oct 24, 2026

Behind Second Look (preview): a shop's product page as clean data, source checks, price history.

VerifiedStreamable HTTPWeb executableWeb Search & Scraping Business & Commerce

Server details

Identifier: io.github.tjcgraham-rgb/gaip-listing-observer
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Sep 30, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified the GitHub account tjcgraham-rgb for this listing. That does not show the account is the product's maker.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

A remote, read-only MCP server that turns an online shop's product page into clean product data, source checks and price and stock history.

What you can do: Observe a product listing: pass one product page URL, or up to 10 URLs, and get back clean product data such as price, stock, GTIN, variants, shipping and returns, plus whether the page and the platform agree and GAIP's price and stock history. Intended to be used before recommending or buying from an online shop. The listing is a preview and does not cover Amazon, eBay or Etsy.
When to use it: Use it when an assistant is about to recommend or buy a product from an online shop and needs structured product facts, a page-versus-platform consistency check, or dated price and stock history for a listing.
Requirements: A remote streamable HTTP endpoint at the provider's site; no sign-in, API key, environment variable or header is declared. Network access to the provider is required.

Before you install

The listing tool is described as a preview and excludes Amazon, eBay and Etsy. The provider states answers are observations at a stated time, not certifications, endorsements, rankings or legal, financial or insurance advice. The tool is read-only and free; no credentials are requested.

Installation

In SourceWeft

Open GAIP Listing Observer in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.tjcgraham-rgb%2Fgaip-listing-observer/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "gaip-listing-observer": {
      "type": "http",
      "url": "https://www.gaipagents.com/mcp/agents/listing-observer"
    }
  }
}

README

GAIP

[GAIP logo]

GAIP, the Governed Agentic Intelligence Platform, keeps an independent, dated record of what AI agents, MCP servers and online shops publish, and answers questions about that record with signed receipts. Free, read-only, no key; facts at a stated time, never an assessment.

First call: gaip_check with a url on https://www.gaipagents.com/mcp. This one runs as-is; then use the URL of the agent, MCP server or API you care about:

bash

curl -s https://www.gaipagents.com/mcp \  -H 'Content-Type: application/json' -H 'Accept: application/json, text/event-stream' \  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"gaip_check","arguments":{"url":"https://mcp.deepwiki.com/mcp"}}}'

curl -s https://www.gaipagents.com/mcp \  -H 'Content-Type: application/json' -H 'Accept: application/json, text/event-stream' \  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"gaip_check","arguments":{"url":"https://mcp.deepwiki.com/mcp"}}}'

Without MCP: GET https://www.gaipagents.com/v1/free/conformance/check?url=<url>.

The map: every question GAIP answers, grouped by who asks, with its tool and HTTP route: https://www.gaipagents.com/v1/free/map. Every completed answer carries a continuity handle; send it back and the answer is bound to your own history with GAIP.

One line to connect

Where	One line
Any MCP client	`https://www.gaipagents.com/mcp` (streamable HTTP, no sign-in)
Claude Code	`claude mcp add --transport http gaip https://www.gaipagents.com/mcp`, or the plugin (MCP server and skill): `/plugin install gaip --marketplace tjcgraham-rgb/gaip-agents`
Claude Desktop / claude.ai	Customize > Connectors > Add custom connector, URL `https://www.gaipagents.com/mcp`, no sign-in
Agent Skills (Claude Code, Cursor, Codex and others)	`npx skills add tjcgraham-rgb/gaip-agents` (installs `skills/gaip/SKILL.md`)
Cursor, VS Code	the buttons below, or `{ "mcpServers": { "gaip": { "url": "https://www.gaipagents.com/mcp" } } }`
Gemini CLI	`gemini extensions install https://github.com/tjcgraham-rgb/gaip-agents`
OpenAI Agents SDK	`HostedMCPTool(tool_config={"type": "mcp", "server_label": "gaip", "server_url": "https://www.gaipagents.com/mcp", "require_approval": "never"})`
Vercel AI SDK	`await createMCPClient({ transport: { type: 'http', url: 'https://www.gaipagents.com/mcp' } })` (from `@ai-sdk/mcp`)
LangChain	`pip install langchain-gaip`, then `from langchain_gaip import get_tools`
CrewAI	`Agent(..., mcps=["https://www.gaipagents.com/mcp"])`
A2A (1.0 and 0.3.0)	agent card `https://www.gaipagents.com/.well-known/agent-card.json`; plain text works
x402	nothing to set up: GAIP is free and never answers with HTTP 402 (`https://www.gaipagents.com/.well-known/x402`)
Windsurf	`~/.codeium/windsurf/mcp_config.json`: `{ "mcpServers": { "gaip": { "serverUrl": "https://www.gaipagents.com/mcp" } } }`
Cline	`{ "mcpServers": { "gaip": { "type": "streamableHttp", "url": "https://www.gaipagents.com/mcp" } } }` (see `llms-install.md`)
Everything else, with copy-paste code	https://www.gaipagents.com/docs/quickstart

[Add to Cursor] [Install in VS Code]

In CI: two GitHub Actions

GAIP Watch fails your build when an MCP server or agent your agent depends on changed its tools, schemas, sign-in or prices, with dated receipts (watch/):

GAIP Agents check runs gaip_check on your own agent card, MCP server or OpenAPI document on every push:

yaml

- uses: tjcgraham-rgb/gaip-agents@v1  with:    agent-url: https://your-agent.example/.well-known/agent-card.json    fail-on-error: "true"

- uses: tjcgraham-rgb/gaip-agents@v1  with:    agent-url: https://your-agent.example/.well-known/agent-card.json    fail-on-error: "true"

Outputs: verdict (READY, FIXES_NEEDED, UNREACHABLE or NOT_CHECKED), receipt-id, error-count, warning-count. Providers can show their own dated record with the badge https://www.gaipagents.com/v1/free/watch/badge.svg?url=<your endpoint>.

In this repository

Path	What it is
`registry/`	The Official MCP Registry records: `gaip-broker.json` (GAIP itself) and one record per specialist agent
`listing-kit.json`	The sentence, the first call, the map's rows, endpoints and example calls for directories (also served at `/v1/free/discovery/listing-kit`)
`skills/gaip/SKILL.md`	GAIP as an Agent Skill (agentskills.io format; also served at `/.well-known/agent-skills/gaip/SKILL.md`)
`.claude-plugin/`	Claude Code plugin and marketplace manifests: the skill plus the remote MCP server
`.cursor-plugin/plugin.json`, `mcp.json`	Cursor plugin manifest and its MCP server
`gemini-extension.json`, `GEMINI.md`	Gemini CLI extension: installs GAIP's MCP server and tells the model when to use each tool
`packages/gaip-check/`	Python client: `check_agent("https://other-agent.example")`
`action.yml`, `packages/gaip-check-action/`	The check Action (`uses: tjcgraham-rgb/gaip-agents@v1`)
`watch/`	The GAIP Watch Action
`packages/aipref-signals/`	Dependency-free parser and test vectors for AI-preference signals (IETF AI Preferences `Content-Usage`, RSL licence links, W3C TDMRep, Content Signals)
`assets/`	GAIP logo (SVG, and a 400×400 PNG) and the specialist icons (SVG)
`llms-install.md`	Install steps for AI assistants that set up MCP servers themselves (Cline)

The registry records, listing kit, packages, Watch Action, skill and Gemini extension are copies of what GAIP's service generates; a check in the service's repository warns when a copy here falls out of step. The service itself runs at www.gaipagents.com.

What an answer means

Every answer states what was observed and when. It is not a certification, endorsement, ranking or universal score, and not legal, financial or insurance advice. Receipts are signed with GAIP's Ed25519 key, published at https://www.gaipagents.com/.well-known/gaip-receipt-keys.json.

Terms: https://www.gaipagents.com/terms
Privacy: https://www.gaipagents.com/privacy
Corrections and opt-out: https://www.gaipagents.com/corrections
Methodology: https://www.gaipagents.com/methodology
Security contact: https://www.gaipagents.com/.well-known/security.txt

Licence

MIT (see LICENSE) for everything in this repository.

Source: README.md at commit 0bfeca4

Tools

gaip_observe_listing

Does a shop listing agree across its sources? (preview)

Use this before recommending or buying from an online shop. Pass a product page `url` (or up to 10 `urls`). Returns clean product data (price, stock, GTIN, variants, shipping, returns), whether page and platform agree, and GAIP's price and stock history. Preview. Not Amazon, eBay or Etsy. Free, read-only, no account; inputs must be public and non-personal.

Parametersurlurlsmax_age_minutesdata_classification

Version history

v1.5.0LatestOct 10, 2026
v1.4.0Oct 2, 2026
v1.2.0Sep 30, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
License10 pts