io.github.juan-sibbo/gam-seller-mcp-node

gam-seller-mcp-node

Governed, read-only MCP server exposing Google Ad Manager inventory discovery to buyer agents

833/wk 5 tools GitHub npm

No known CVEs

MIT license

Actively maintained

Last commit 0d ago

Works with most clients

Transport: stdio, http

5 tools · ~160 tok

Grade A · 0.1% of 200K ctx

MCPpedia last refreshed this data 3h ago

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io.github.juan-sibbo/gam-seller-mcp-node is an MCP server that governed, read-only MCP server exposing Google Ad Manager inventory discovery to buyer agents. Its tool list has not been published yet over stdio and http, requires no API key, and scores 87/100 on MCPpedia's security, maintenance and efficiency rubric.

Other

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-juan-sibbo-gam-seller-mcp-node": {
      "args": [
        "-y",
        "gam-seller-mcp-node"
      ],
      "command": "npx"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-juan-sibbo-gam-seller-mcp-node)](https://mcppedia.org/s/io-github-juan-sibbo-gam-seller-mcp-node)

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What io.github.juan-sibbo/gam-seller-mcp-node does

AI buyer agents are about to participate in programmatic advertising. When they do, they need a governed interface to sell-side inventory — one that cannot be tricked into revealing sensitive data, and that cannot execute transactions it shouldn't.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'gam-seller-mcp-node' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

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Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

87/100across 5 weighted dimensions

How we score →

0255075100

−13

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked gam-seller-mcp-node against OSV.dev.

Inventory

Tools (5)

Click any tool to inspect its schema.

~160 tokens total

Community

Reviews

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How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.juan-sibbo/gam-seller-mcp-node safe to use?: io.github.juan-sibbo/gam-seller-mcp-node has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install io.github.juan-sibbo/gam-seller-mcp-node?: io.github.juan-sibbo/gam-seller-mcp-node supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can io.github.juan-sibbo/gam-seller-mcp-node do?: io.github.juan-sibbo/gam-seller-mcp-node provides 5 tools: Architecture, Testing, Roadmap, Contributing, License. See the full tools list on the server page for descriptions and parameters.
What AI clients work with io.github.juan-sibbo/gam-seller-mcp-node?: io.github.juan-sibbo/gam-seller-mcp-node is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.
Is io.github.juan-sibbo/gam-seller-mcp-node actively maintained?: io.github.juan-sibbo/gam-seller-mcp-node is actively maintained — last commit was 0 days ago.

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Community

Discussion

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Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

What problem does this solve?

Sell-side ad inventory (availability, pricing, product structure) lives inside ad servers that hold commercially sensitive and sometimes personal data. Giving an AI buyer agent direct API access to GAM or a similar system creates three risks:

Risk	Without this project	With this project
Data over-exposure	Agent can read raw avails, deal IDs, exact floor prices	Only coarse buckets and pre-declared families
Accidental writes	Agent SDK can create orders, modify line items	No ad-server writes exist; the only write is a buyer's own soft commitment, which can never become a GAM order or an inventory hold
No accountability	API calls are logged but not auditable	Hash-chained audit ledger; every allow/deny recorded

Risk

Without this project

With this project

Data over-exposure

Agent can read raw avails, deal IDs, exact floor prices

Only coarse buckets and pre-declared families

Accidental writes

Agent SDK can create orders, modify line items

No ad-server writes exist; the only write is a buyer's own soft commitment, which can never become a GAM order or an inventory hold

No accountability

API calls are logged but not auditable

Hash-chained audit ledger; every allow/deny recorded

How it works

A buyer agent connects via MCP and gets five tools — three read-only, plus a buyer-scoped commitment primitive (create/revoke) that is the sole write surface:

Buyer agent │ ├── well_known_capabilities ← Signed trust anchor. Check this first. │ Returns: RS256-signed capability document, node identity, privacy posture. │ ├── discover_products ← What can I buy here, and at what firm price? │ Returns: product families the buyer is entitled to see (e.g. "Pre-Roll Video"), │ each with its firm list price when the publisher has configured one. │ Never returns: deal IDs, internal IDs, raw inventory, exact per-impression pricing. │ ├── get_forecast ← How available is this family next quarter? │ Returns: Low / Mid / High availability bucket. │ Never returns: exact impression counts, CPM curves, floor prices. │ ├── create_intent ← Commit to a product at its current firm price (with TTL). │ Records a firm, time-boxed buying intent — rejected if the price is stale or │ mismatched. NOT a GAM order and NOT an inventory hold; it is the handoff artifact │ the classic sales rails pick up. Buyer-scoped: you can only ever commit as yourself. │ └── revoke_intent ← Withdraw one of your own active intents by id.

Every call flows through the same pipeline before any domain logic runs:

Buyer request │ ▼ [SEC-GATE-3] Replay detection — deduplicate client_request_id │ ▼ [Auth] RS256 token validation → identity confirmed or AUTH_FAILED │ ▼ [Policy] Surface denylist → entitlement check → scope check (Default-Deny) │ ▼ [Rate limit] N=1 / T=30s per buyer_id │ ▼ [Domain] Catalog / ForecastEngine — synthetic today, real GAM adapter in progress │ ▼ [Audit] Append-only hash-chained ledger, buyer pseudonymized (HMAC) ... [View full README on GitHub](https://github.com/juan-sibbo/gam-seller-mcp-node#readme)

Frequently Asked Questions

Is io.github.juan-sibbo/gam-seller-mcp-node safe to use?

io.github.juan-sibbo/gam-seller-mcp-node has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.

How do I install io.github.juan-sibbo/gam-seller-mcp-node?

io.github.juan-sibbo/gam-seller-mcp-node supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can io.github.juan-sibbo/gam-seller-mcp-node do?

io.github.juan-sibbo/gam-seller-mcp-node provides 5 tools: Architecture, Testing, Roadmap, Contributing, License. See the full tools list on the server page for descriptions and parameters.

What AI clients work with io.github.juan-sibbo/gam-seller-mcp-node?

io.github.juan-sibbo/gam-seller-mcp-node is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.

Is io.github.juan-sibbo/gam-seller-mcp-node actively maintained?

io.github.juan-sibbo/gam-seller-mcp-node is actively maintained — last commit was 0 days ago.