Web App Testing
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MCP Server Builder
Use Claude Code to build MCP servers that connect Claude to your APIs, databases, and tools. Working server with auth and error handling in minutes.
By Anthropic
Official skill
About
You want Claude to talk to your company's API or internal database. But MCP documentation is dense, the setup is confusing, and you're not sure where to start. Instead, describe what you want to connect. Claude builds a working MCP server with proper error handling and authentication, ready to deploy.
Stop wrestling with protocol specs. Start shipping integrations that work. Describe, don't configure Tell Claude what API or database you need. It handles the MCP boilerplate, auth patterns, and error handling. Production-ready from day one Every server includes proper logging, graceful failures, and security best practices. Not a tutorial—real code. Connect anything Databases, REST APIs, GraphQL endpoints, internal tools. If it has an interface, Claude can build the bridge.
Best for
- · Build working MCP servers without reading protocol documentation
- · Production-ready code with error handling, logging, and auth patterns
- · Connect Claude to any API, database, or internal tool
- · Skip weeks of integration work—describe what you need in minutes
Not for
- · You still need API credentials and access—Claude builds the bridge, not the permissions
- · Complex OAuth flows may require manual configuration of redirect URIs
- · Generated servers are starting points—production deployments should include your security review
How to use
- 1Install the SkillDownload the skill file directly, or install via the plugin marketplace. Skills auto-activate when relevant—no manual invocation needed.
- 2Describe Your IntegrationTell Claude what you want to connect and what operations you need. Be specific about auth requirements.
- 3Review and CustomizeClaude generates the server code with your specific requirements. Review the auth handling and add your credentials.
- 4Test LocallyRun the server locally and test each tool. Claude helps debug connection issues and validates responses.
Source
@anthropics on GitHubhttps://github.com/anthropics/skills/tree/main/skills/mcp-builder
Someone else wrote this — read the source, verify it does what it says, and never share a password or API key with it.
Example prompts
Connect to a REST API
/mcp-builder Build an MCP server for our internal inventory API. Base URL is https://api.internal/v2. It uses API key auth in the header. I need tools for: list products, get product by SKU, check stock levels.
Database read access
/mcp-builder I need Claude to query our analytics PostgreSQL database. Read-only access. Connection string is in DATABASE_URL env var. Should be able to run arbitrary SELECT queries and describe table schemas.
Third-party SaaS integration
/mcp-builder Create an MCP server for Stripe. I need to list customers, get payment history, and check subscription status. We have a restricted API key with read-only permissions.
Internal tool automation
/mcp-builder Our team uses a custom ticketing system with a GraphQL API. I want Claude to be able to create tickets, update status, and add comments. Auth is OAuth2 with refresh tokens.
Multi-service orchestration
/mcp-builder I need an MCP server that coordinates between our CRM (Salesforce) and support system (Zendesk). Should be able to look up a customer and see their support history in one call.
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