Official MCP RegistryListed
Book a Sponsor
Find brands that already sponsor newsletters like yours, with sponsorship rates.
First seen 6 Oct 2026. Evidence as of 7 Oct 2026.
4
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| find_newsletter_sponsors | Use this when someone who runs a newsletter asks which brands might sponsor it or how to find sponsors for it. Takes the newsletter's web address, finds similar newsletters, and returns the brands that sponsored them, with the newsletters and dates where each ad ran. Starts a scan of the public newsletter pages if none exists; a new scan takes about 15 to 60 seconds. | Changes data |
| get_newsletter_sponsorship_rates | Use this when someone asks how much to charge for a newsletter sponsorship or what newsletters charge for an ad. Returns the median price newsletters list for the main sponsor slot of one issue, by list size, read from their own advertise pages. | Read-only |
| get_sponsor_scan | Use this to read the result of a sponsor scan that find_newsletter_sponsors started, for example when it reported that the scan was still running. Takes the same newsletter web address. | Read-only |
| list_brands_sponsoring_newsletters | Use this when someone asks which companies or brands sponsor newsletters, overall or in a topic such as AI, finance or marketing. Returns the brands seen in the most newsletters in the last 12 months, read from published issues. | Read-only |
Change history
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | com.bookasponsor/book-a-sponsor | 6 Oct 2026 | 7 Oct 2026 | 1 |