npm · google-surf-mcp
$npx -y google-surf-mcp@1.1.3 SEARCH_API · secret — SearchApi API key. Required only for SearchApi primary or fallback modes.
SURF_SEARCH_PROVIDER — Provider for search and search_parallel: browser, searchapi, or fallback. Defaults to browser.
SURF_SCHOLAR_PROVIDER — Provider for scholar_search: browser, searchapi, or fallback. Defaults to browser.
SURF_BROWSER_ENGINE — Browser engine: auto, native, or playwright. Auto uses one hidden native Chrome broker shared across local MCP sessions.
CHROME_PATH — Absolute path to the Chrome binary. Auto-detected on Windows/macOS/Linux when omitted.
SURF_PROFILE_ROOT — Directory for the warm Chrome profile. Defaults to ~/.google-surf-mcp.
SURF_RESEARCH — Enable local project memory and hybrid retrieval. Defaults to true.
SURF_RETRIEVAL_MODE — Shared route for search and search_parallel: live or hybrid. Defaults to hybrid.
SURF_RESEARCH_ROOT — Embedded SurrealDB data directory. Defaults to <profile>/research.
SURF_RESEARCH_VECTOR_MODEL — Local model for HNSW retrieval and shared reranking. Defaults to Xenova/multilingual-e5-small; use off to disable.
SURF_RESEARCH_VECTOR_LOW_MEMORY — Disable ONNX CPU memory arena and memory pattern. Defaults to true.
SURF_RESEARCH_VECTOR_THREADS — ONNX intra-op thread count from 1 to 16. Defaults to 4.
SURF_RESEARCH_REPO_AUTO — Sparse-index at most one eligible small GitHub repository per search call. Defaults to true.
SURF_RESEARCH_REPO_AUTO_MAX_MB — Maximum searchable repository source-text size in MB. Assets are excluded. Defaults to 20.
SURF_RESEARCH_REPO_AUTO_MAX_FILES — Maximum repository source file count for automatic indexing. Defaults to 2000.
SURF_RESEARCH_BROKER_IDLE_MS — Shared research broker idle lifetime in milliseconds. Defaults to 60000.
SURF_RESEARCH_READ_CONCURRENCY — Maximum concurrent research broker reads. Defaults to 4.
SURF_RESEARCH_QUERY_TIMEOUT_MS — Timeout per embedded SurrealDB query in milliseconds. Defaults to 120000; timed-out retrieval lanes are reported as partial.
GITHUB_TOKEN · secret — Optional token that raises GitHub API limits for repository inspection.
SURF_LOCALE — Browser locale, e.g. en-US.
SURF_TZ — IANA timezone, e.g. America/New_York. Defaults to system timezone.
SURF_HEADLESS — Controls Playwright extraction, compatibility, and recovery paths. Native search hides normal system Chrome and shows it only for CAPTCHA recovery.
SURF_IDLE_CLOSE_MS — Idle ms before closing the sequential ctx and pool. 0 disables idle auto-close. Defaults to 30000.
SURF_ALLOW_PRIVATE — Set to 'true' to allow extract on private/loopback addresses (localhost, 10.x, 192.168.x, 169.254.x, etc). Default blocks them as an SSRF guard.
SURF_LLM_HEAL — Enable the optional workflow-only LLM selector repair path. Defaults to false.
SURF_LLM_PROVIDER — LLM selector repair provider: anthropic or orcarouter. Defaults to anthropic.
SURF_LLM_MODEL — Optional model override. OrcaRouter defaults to orcarouter/auto.
ANTHROPIC_API_KEY · secret — Anthropic API key for optional LLM-assisted selector repair.
ORCAROUTER_API_KEY · secret — OrcaRouter API key for optional LLM-assisted selector repair.