EnriWeb

EnriWeb is a Model Context Protocol (MCP) server over stdio that exposes web search and URL fetching tools by delegating execution to EnriProxy.

If your MCP client can call MCP tools, it can do web search / fetch in a consistent way without implementing provider-specific scraping logic.

What this project is

• An MCP server process your MCP host launches (OpenCode, Claude Code, Codex, etc.)

• A thin client for EnriProxy (input validation + structured output)

Requirements

• Node.js >= 22 (recommended: Node 24 LTS)

• A reachable EnriProxy server with:

  • POST /v1/tools/web_search

  • POST /v1/tools/web_fetch

• An EnriProxy API key (configured on the EnriProxy side)

Install

Build

Usage

1) Configure your MCP host

EnriWeb runs as an MCP server over stdio. Your MCP host is responsible for launching the process.

Example: global install

Example: no install (always uses whatever npm currently tags as latest)

Configuration

EnriWeb is configured via environment variables:

• ENRIPROXY_URL (string, optional, default: http://127.0.0.1:8787)

• ENRIPROXY_API_KEY (string, required)

• ENRIWEB_TIMEOUT_MS (string, optional, default: 60000)

  • Parsed as an integer (milliseconds).

• ENRIWEB_WEB_FETCH_DEFAULT_MAX_CHARS (string, optional, default: 200000)

  • Parsed as an integer.

• ENRIWEB_GITHUB_TOKEN (string, optional)

  • Used for GitHub API enrichment to improve rate limits.

MCP tools

EnriWeb exposes these MCP tools:

• web_search

• web_fetch

General notes:

• All tools accept a single JSON object as their input (the MCP arguments for that tool).

• EnriWeb returns both:

  • a short human-readable preview (content)

  • the full result payload (structuredContent)

web_search

Search the web via EnriProxy.

Inputs:

• query (string, required): search query string.

• max_results (number, optional)

  • Must be >= 1.

  • If omitted, EnriProxy uses its configured default.

  • The upper limit is enforced server-side (EnriWeb does not hardcode a max).

• recency (string, optional, default: noLimit)

  • One of: oneDay | oneWeek | oneMonth | oneYear | noLimit

• allowed_domains (string[], optional): allowlist of domains to include.

• blocked_domains (string[], optional): blocklist of domains to exclude.

• search_prompt (string, optional): extra context to refine the search intent.

Example arguments object:

web_fetch

Fetch and read content from a URL via EnriProxy.

Inputs:

• url (string, required unless cursor is provided): full URL (http:// or https://).

• cursor (string, optional): opaque cursor returned by a previous web_fetch call.

• offset (number, optional, default: 0): cursor read offset in characters.

• limit (number, optional): cursor read limit in characters (default: max_chars).

• prompt (string, optional): extraction hint (what to focus on).

• max_chars (number, optional): maximum content length (default: ENRIWEB_WEB_FETCH_DEFAULT_MAX_CHARS).

Notes:

• If the response includes a cursor, you can page through the captured content by calling web_fetch again with cursor + offset + limit.

Example arguments object: