DOC-815 | MCP Server (#820)

* add initial content for MCP server

* remove installation content and just link to docker hub

Author: nerpaula

site/content/ecosystem/arangodb-mcp-server.md

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+---
+title: ArangoDB Model Context Protocol (MCP) Server
+menuTitle: MCP Server
+weight: 10
+description: >-
+  A Model Context Protocol server for generating and executing AQL queries using AI assistants like Claude and Cursor IDE
+---
+The ArangoDB MCP Server is a focused [Model Context Protocol (MCP)](https://modelcontextprotocol.io/) implementation that enables AI assistants to generate and execute AQL queries based on natural language questions. It includes lightweight schema discovery and manuals to ground queries in actual database structure.
+
+## Features
+
+**AQL Generation & Execution:**
+- Generate AQL grounded in actual database structure
+- Execute AQL with optional bind variables and target database
+
+**Manuals for Guidance:**
+- AQL reference and optimization guides built-in
+- Context-aware query generation
+
+**Lightweight Schema Discovery:**
+- List collections within accessible databases
+- Sample documents via simple filters to learn fields
+
+## What You Can Do
+
+The server is purpose-built for safe, read-focused AQL operations:
+- Execute AQL queries with optional bind variables and target database
+- Access built-in manuals for syntax and optimization guidance
+- Discover database schemas and collection structures
+- Sample documents to understand field structures
+
+The following are not included:
+- Graph/view/index/analyzer management tools
+- Destructive admin operations (create/delete databases or collections)
+
+## Installation
+
+The ArangoDB MCP Server is available as a Docker image on Docker Hub: [arangodb/mcp-arangodb](https://hub.docker.com/r/arangodb/mcp-arangodb)
+
+See the Docker Hub page for installation and usage instructions.
+
+## Available Tools
+
+The MCP server exposes four main tools that AI assistants can use to interact with your ArangoDB database.
+
+### `get-aql-manual`
+
+Retrieves built-in documentation for AQL syntax and optimization.
+
+**Parameters:**
+- `manual_name` (required): Either `aql_ref` or `optimization`.
+
+**Use when:** You need reference documentation for writing AQL queries.
+
+### `fetch-schemas`
+
+Lists all collections in a database (non-system collections only).
+
+**Parameters:**
+- `database_name` (optional): Target database. Uses configured default if not specified.
+
+**Use when:** You need to discover what collections exist in your database.
+
+### `read-documents-with-filter`
+
+Samples documents from a collection using simple equality filters.
+
+**Parameters:**
+- `collection_name` (required): Name of the collection to query.
+- `filters` (required): Filter conditions as key-value pairs.
+- `limit` (optional, default: 100): Maximum documents to return.
+- `skip` (optional, default: 0): Number of documents to skip (pagination).
+
+**Use when:** You want to explore document structure or find specific documents by exact field matches.
+
+### `execute-aql-query`
+
+Executes AQL queries with optional bind variables.
+
+**Parameters:**
+- `aql_query` (required): The AQL query to execute.
+- `bind_vars` (optional): Bind variables for parameterized queries.
+- `database_name` (optional): Target database.
+
+**Use when:** You need to run complex queries, aggregations, or graph traversals.
+
+## Workflow
+
+When working with the MCP server, AI assistants typically follow this pattern:
+
+1. **Discover**: Call `fetch-schemas()` to understand available collections.
+2. **Explore**: Use `read-documents-with-filter()` to see document structures.
+3. **Reference**: Call `get-aql-manual()` if complex query syntax is needed.
+4. **Execute**: Run queries with `execute-aql-query()` using bind variables for safety.
+
+## Practical Examples
+
+**Example 1: Exploring Your Database**
+
+*Prompt:* "Show me all collections in the database"
+
+The AI will call `fetch-schemas()` and display the available collections with their types and document counts.
+
+**Example 2: Finding Specific Records**
+
+*Prompt:* "Find all active users who are verified"
+
+The AI will:
+1. Confirm the `users` collection exists with `fetch-schemas()`
+2. Sample the structure with `read-documents-with-filter()`
+3. Generate and execute an AQL query: 
+   ```aql
+   FOR user IN users 
+   FILTER user.status == "active" AND user.verified == true 
+   RETURN user
+   ```
+
+**Example 3: Complex Graph Traversal**
+
+*Prompt:* "Find all friends of friends for user 'john' up to 3 levels deep"
+
+The AI will:
+1. Retrieve the AQL reference manual for graph traversal syntax
+2. Identify edge collections using `fetch-schemas()`
+3. Generate an optimized graph query:
+   ```aql
+   FOR v, e, p IN 1..3 OUTBOUND 'users/john' friends
+   RETURN DISTINCT v
+   ```
+4. Execute with appropriate bind variables for safety
+
+**Example 4: Data Analysis**
+
+*Prompt:* "What's the average age of users by country?"
+
+The AI will generate and execute an aggregation query:
+```aql
+FOR user IN users
+COLLECT country = user.address.country
+AGGREGATE avgAge = AVG(user.age)
+RETURN { country, avgAge }
+```
+