Mcp Auto Adapter

Keep MCP integrations working when tool schemas change

MCP Auto-Adapter is a compatibility engine for MCP clients, AI agents, and server developers.

When an upstream MCP server changes a tool name, argument name, optional field, default value, or schema, existing agents may continue sending requests using the old contract. MCP Auto-Adapter helps bridge those changes safely.

What it does

• Compares old and new MCP tool catalogs
• Detects tool and schema changes
• Maps compatible tool renames
• Adapts renamed arguments
• Injects safe default values when available
• Removes obsolete optional arguments
• Validates adapted requests against the new schema
• Blocks ambiguous or unsafe migrations instead of guessing

Available tools

compare_catalogs Compare two MCP tool catalogs and identify schema drift, additions, removals, renames, and other compatibility changes.

adapt_arguments Transform arguments from an older tool schema into arguments compatible with a newer schema.

adapt_tool_call Adapt an entire MCP tool call, including compatible tool-name and argument changes.

Built for reliability

MCP Auto-Adapter follows a conservative rule:

Block instead of guess.

If a schema change cannot be adapted safely — for example, when a new required field has no reliable default — the adapter reports the incompatibility rather than silently generating potentially incorrect arguments.

Use cases

• MCP servers evolving their tool schemas
• AI agents using cached or older tool definitions
• MCP client compatibility layers
• Multi-agent systems
• Automated MCP integrations
• Production MCP deployments
• API and schema migrations

Reduce integration failures caused by MCP schema drift without forcing every client or agent to be updated immediately.