wigolo runs embeddings, reranking, and a browser engine on-device with zero API keys.

KnockOutEZ/wigolo (3,641 stars, +2,529 this week) is an MCP server exposing ten web tools backed by 18 direct search adapters with rank fusion and ML reranking, all local on Node ≥20 with ~1.5GB under ~/.wigolo/ (GitHub). Core search needs no API keys via public engines and query data never leaves the machine. In its own four-way benchmark against WebSearch, Tavily, and Exa, all tools converged on the same answer, but wigolo alone returned verbatim excerpts pinned to byte-offset source spans with explainable score decomposition. Citation provenance an agent can actually verify is worth more than the search quality here.