The short version
Pick it if
- You want to see the sponsor segment and the read behind each result
- You want to pitch brands when they’re buying
- You work in Claude, Codex or Cursor and want sponsorship data there
Skip it if
- You want unmetered contacts for $29
- You want brand and channel totals before you pay
- You’re a brand looking for creators to sponsor
Sponsorbook is a creator-side database of disclosed YouTube brand deals, for creators and talent agencies. It has the best evidence on the creator side: each of its 351K+ sponsored videos links to the exact timestamp of the sponsor segment, with the transcript of the read. Sponsorbook says it combines several signals, including transcripts, descriptions and YouTube’s paid-partnership flag. It’s the only tool here that says it reads that flag.
Its other strength is timing. Brand insights show whether a brand’s spend is rising or falling, and Sponsorbook says they break down the size and niche of the creators it usually sponsors, so you can pitch the right brand while it’s buying. It finds sponsors from who has paid channels like yours, and you can connect your channel for automatic recommendations. Contacts are emails for the right people at each brand, revealed with credits. There’s a free tier, Starter at $29 a month and no commission, and Pro adds a full MCP server for Claude, Codex and Cursor. It ranks second, behind SponsorRadar’s bigger published index.
Sponsorbook at a glance
- Headquarters
- Westlake Village, California
- Launched
- 2026
- Product type
- Sponsorship database, Chrome extension and MCP server
- Built for
- Creators and talent agencies
- Platforms
- YouTube only
- Data
- 351K+ sponsored videos with timestamped segments and transcripts; brand and channel totals not published
- Detection
- Transcripts, descriptions and YouTube’s paid-partnership flag, among other signals (Sponsorbook says)
- Freshness
- Twice a day; new deals usually within a week (Sponsorbook says)
- Plans from
- Free; Starter $29 a month
- Free tier
- Yes: 5 searches a day, no card
- Contacts
- Credits: 25 reveals a month on Starter, 150 on Pro
- API
- Full MCP server on Pro; no REST API
- Commission
- None
Pricing
Yearly billing saves 20%, which works out at about $23.20 a month for Starter and $79.20 for Pro. Contacts are revealed with credits, about $1.16 a contact on Starter and $0.66 on Pro. Pro can buy extra credits and credits never expire, but pack prices aren’t published.
Entry plan per month, compared
From our YouTube sponsorship tools ranking.
Using Sponsorbook
Signing up
The free tier needs no card and works as the trial: five searches a day, three brands per search, and no full profiles, lists or contacts. Starter unlocks the full catalogue, profiles, lists and watches. Connecting your YouTube channel is optional; do it and Sponsorbook recommends sponsors automatically. Contacts work by request: you ask for one, then reveal it with a credit once verified details exist.
Making a request
There’s no REST API. The full MCP server is a hosted connector at app.sponsorbook.io/mcp: add it to Claude, Codex or Cursor and there’s nothing to install. It needs a Pro workspace. Its tools find sponsor brands by name, domain, language, recency and volume, pull a brand’s history with video evidence, list creators per brand and overlapping brands, search channels, and handle lists, notes and contact reveals.
https://app.sponsorbook.io/mcpDocumentation
Setup is a single connector URL, and the server is listed on Glama. The Chrome extension, “Sponsorbook for YouTube”, is in the Chrome Web Store.
Support
There’s a support page and an email address.
Verdict
Our second pick for creators, and the best for timing your pitch. Every deal comes with the sponsor segment and the transcript of the read, brand insights show who’s spending more, and the MCP server puts all of it inside your AI tools. Start on the free tier. SponsorRadar has the bigger published index and a public methodology, and GetSponsored gives unmetered contacts for the same $29.
Visit SponsorbookAlternatives
Questions
Is Sponsorbook free?
There’s a free tier with no card: five searches a day, three brands per search, and no full profiles, lists or contacts. Starter is $29 a month and Pro $99, with 20% off yearly.
Does Sponsorbook take a commission?
No. Its pricing says “No commission, ever”: you pay a flat price and keep every deal.
How does Sponsorbook detect sponsorships?
Sponsorbook says it combines several signals, including transcripts, descriptions and YouTube’s paid-partnership flag, so it catches deals a link scanner would miss. Each result links to the exact timestamp of the sponsor segment, with the transcript of the read.
How does Sponsorbook find sponsors for my channel?
It looks at which brands have sponsored channels like yours. Connect your YouTube channel and it recommends sponsors automatically; that step is optional.
How do contacts work on Sponsorbook?
You request a contact for the right person at a brand, then reveal it with a credit once verified details exist. Starter includes 25 reveals a month and Pro 150. Credits never expire, and Pro can buy more.
What is the Sponsorbook MCP server?
A full MCP server that lets Claude, Codex or Cursor search Sponsorbook’s data: sponsor brands, their history with video evidence, creators per brand, and contacts. It needs the Pro plan at $99 a month.
How fresh is Sponsorbook’s data?
Sponsorbook says the database updates twice a day, and new sponsorships usually appear within a week.