Sponsorbook MCP
Research YouTube sponsors from Claude, Codex, Cursor, and other MCP clients. 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.
Endpoint and access
OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.
https://app.sponsorbook.io/mcpChecks and signals
Each line is separate evidence, not a trust score.
- Passed Endpoint answered the live check ·
- Availability 1 of 1 checks passed in 30 days
What you can do with it
- 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
- Create lists, save brands, and attach research notes
Source and maintenance
- Maintenance checked
Tools
Reported by the attributed source; not independently observed by Koskamo.
90-day uptime
A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.
- 2026-11-06: 1 of 1 checks answered
- 2026-11-07: 1 of 1 checks answered
30-day availability
Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.
- Successful checks
- 1 of 1 (100%)
- Average latency
- 401 ms
- 95th percentile latency
- 401 ms
Maintenance history
Public check and source-refresh events. Editorial and ownership records remain private.
- · probe · passed · 401 ms · metadata changed · refuses unauthenticated initialize (HTTP 401)
Connect from your client
Each snippet registers the same endpoint; pick the client you use.
Claude Code
claude mcp add --transport http sponsorbook-mcp https://app.sponsorbook.io/mcpCodex
codex mcp add sponsorbook-mcp --url https://app.sponsorbook.io/mcpCursor
{
"mcpServers": {
"sponsorbook-mcp": {
"url": "https://app.sponsorbook.io/mcp"
}
}
}Cline
{
"mcpServers": {
"sponsorbook-mcp": {
"type": "streamableHttp",
"url": "https://app.sponsorbook.io/mcp",
"disabled": false
}
}
}VS Code
{
"servers": {
"sponsorbook-mcp": {
"type": "http",
"url": "https://app.sponsorbook.io/mcp"
}
}
}Gemini CLI
gemini mcp add --transport http sponsorbook-mcp https://app.sponsorbook.io/mcpClaude Desktop
https://app.sponsorbook.io/mcpWindsurf
{
"mcpServers": {
"sponsorbook-mcp": {
"serverUrl": "https://app.sponsorbook.io/mcp"
}
}
}Let your agent find its tools
Find servers like Sponsorbook MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.