Agent Web Search
Provider-neutral web_search for AI agents. Grounding + agent search APIs, keyless defaults.
The current version, v0.7.5, was published to the official MCP registry on 2026-09-06. It is distributed as agent-web-search-mcp on PyPI, filed under Search by this index, and declares 13 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.
Using Agent Web Search in Claude, Cursor, Gemini CLI, Cline, or Zed?
MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).
Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less
uv tool install mcpindex-gate && mcpindex-config-wireVerdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.
Own this server? Screen its description →
That verdict was true at screening time (snapshot 2026-09-06).
Contracts can change after screening, with no version bump. The gate pins Agent Web Search’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.
See your first HOLD in 2 minutes →
Related: how to trust an MCP server · screen before install · silent contract drift
AGENT_WEB_SEARCH_PROVIDERSComma-separated startup-enabled provider set; defaults to ddgs,exa,parallel (all keyless)
ARK_API_KEYVolcengine Ark API key for Doubao grounding
GEMINI_API_KEYGoogle Gemini API key for Google Search grounding
XAI_API_KEYxAI API key for Grok web/X search
DEEPSEEK_API_KEYDeepSeek API key for native web search
TAVILY_API_KEYTavily API key for agent-oriented search
BRAVE_SEARCH_API_KEYBrave Search API key
PERPLEXITY_API_KEYPerplexity API key for structured search
YDC_API_KEYYou.com API key
EXA_API_KEYOptional Exa key; free MCP fallback without it
PARALLEL_API_KEYOptional Parallel key; free MCP fallback without it
ZHIPU_WEB_SEARCH_API_KEYZhipu standalone Web Search API key
ZHIPU_CHAT_SEARCH_API_KEYZhipu Chat Completions native web search key
yt-dlp search, download, metadata, delivery, and Plex workflows over MCP and CLI.
Trend, stats & insight search across PSFK expert graphs with citable sources.
Codebase indexing and search via WASM tree-sitter. Works on ARM64 and x86_64.