Sponsorbook

io.github.InflushipPublished by GitHub account Influshipv0.1.1Updated Oct 24, 2026

Research YouTube sponsors, inspect sponsorship evidence, and manage brand lists with Sponsorbook.

VerifiedStreamable HTTPWeb executableProductivity & WorkflowWeb Search & ScrapingBusiness & Commerce

Overview

AI-generated overview

Sponsorbook lets an assistant research YouTube sponsors, inspect sponsorship evidence, explore related brands and creators, and manage brand research lists.

What you can do
Find sponsor brands by name, domain, language, recency, volume and typical views, and inspect a brand's sponsorship history with supporting video evidence. Explore the creators a brand sponsors and brands with overlapping creator relationships, and search YouTube channels to see which brands sponsored them. Create lists, save brands and attach research notes. View masked contacts, explicitly reveal a stored email, or request a contact when none exists.
When to use it
Useful for creator-economy and sponsorship research: prospecting brands, checking whether a brand really sponsors YouTube creators, comparing related brands, and keeping organized lists of prospects with notes and contacts.
Requirements
A Sponsorbook Pro workspace is required. Connect to the hosted remote endpoint with OAuth, or run the local npm package with Node.js 20.18.1 or newer; the browser opens on first connection to sign in and choose a workspace, and later connections reuse that authorization.
Before you install
Requires OAuth sign-in to a Sponsorbook account and a paid Pro workspace. Contact reveal is an explicit action that exposes a stored email, and list, note and contact-request actions change data in your workspace. Research runs on Sponsorbook's hosted server, so queries and workspace data go to that third party.

Installation

In SourceWeft

  1. Open Sponsorbook in the dashboard and add it to a workspace.
  2. Connect the required credentials. They are stored privately and never shown on public pages.
  3. 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.Influship%2Fsponsorbook-mcp/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. The client completes OAuth sign-in on first connect.

{
  "mcpServers": {
    "sponsorbook": {
      "type": "http",
      "url": "https://app.sponsorbook.io/mcp"
    }
  }
}

README

Sponsorbook MCP

Research YouTube sponsors from Claude, Codex, Cursor, and other MCP clients.

Sponsorbook MCP lets your agent find sponsors, inspect the videos and creators behind each relationship, explore similar brands, manage research lists, and work with verified contacts.

What you can do

  • Find sponsor brands by name, domain, language, recency, volume, and typical views.
  • Inspect a brand's sponsorship history and the supporting video evidence.
  • Explore creators a brand sponsors and brands with overlapping creator relationships.
  • Search YouTube channels and see which brands have sponsored them.
  • Create lists, save brands, and attach research notes.
  • View masked contacts, explicitly reveal a stored email, or request a contact when none exists.

Connect

Sponsorbook MCP requires a Sponsorbook Pro workspace.

Remote MCP

Use the hosted endpoint when your client supports remote MCP with authentication:

text
https://app.sponsorbook.io/mcp

Local MCP configuration

For clients that launch a local MCP command:

json
{  "mcpServers": {    "sponsorbook": {      "command": "npx",      "args": ["-y", "@sponsorbook/mcp"]    }  }}

Your browser opens on the first connection so you can sign in and choose your Sponsorbook workspace. Later connections reuse that authorization.

Requirements

  • Node.js 20.18.1 or newer for the local package
  • A Sponsorbook Pro workspace

How it works

The package is a small open-source bridge for MCP clients that launch local commands. Sponsorbook's hosted MCP server performs the research and applies the same workspace permissions, contact reveal rules, and catalogue limits as the web app.

The hosted server and Sponsorbook catalogue are separate from this repository.

Development

sh
npm installnpm testnpm run test:live

Set SPONSORBOOK_MCP_URL to an HTTPS endpoint, or to an HTTP localhost endpoint, when testing another Sponsorbook deployment.

Security

Please report vulnerabilities through GitHub private vulnerability reporting.

Licence

MIT

Source: README.md at commit 4327d52

Tools

0
This server asks you to sign in, so SourceWeft could not read its tools without an account and has not indexed them. What a connected account sees can depend on that account and its permissions.

Version history

1
  1. v0.1.1LatestSep 16, 2026

Score

85% 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 listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts