Find brands that already sponsor newsletters like yours, with sponsorship rates.
Connect Remote server
claude mcp add --transport http book-a-sponsor https://bookasponsor.com/mcp
{
"mcpServers": {
"book-a-sponsor": {
"url": "https://bookasponsor.com/mcp"
}
}
}
{
"servers": {
"book-a-sponsor": {
"type": "http",
"url": "https://bookasponsor.com/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://bookasponsor.com/mcp
Tools 4 found in our last check
find_newsletter_sponsorsUse 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 sc…
get_sponsor_scanUse 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.
list_brands_sponsoring_newslettersUse 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, mostly read from published issues.
get_newsletter_sponsorship_ratesUse 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.
Details
| Endpoint | https://bookasponsor.com/mcp (Streamable HTTP) |
| First published | 6 Oct 2026 |
| Last updated | 6 Oct 2026 |
| Registry name | com.bookasponsor/book-a-sponsor |
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