`search_books`

6 servers reported a tool by this name when we called them. Names are chosen by whoever wrote the server, so two tools sharing a name do not have to do the same thing. We record what was reported, not what it does.

server	result when we called it	tools
bookstore4agents https://bookstore4agents-mcp.bookstore4agents.workers.dev/mcp	answers-mcp	49
pipeworx-gateway https://gateway.pipeworx.io/books/mcp	answers-mcp	35
most-recommended-books https://mostrecommendedbooks.com/api/mcp	answers-mcp	6
wuming-books https://www.book345.com/api/mcp	answers-mcp	6
wasmcp-server https://on-demand-books-dq2yvpdh.fermyon.app/	answers-mcp	3
invokera-book-search https://invokera.com/r/book-search	answers-mcp	2

6 of these answered an MCP handshake on the day we checked. That is not a promise the tool works, only that the server was running and told us the tool existed.