How to get the request URL (path/query) in MCP TypeScript SDK server handlers?

Question

In the MCP TypeScript SDK, a server can be served on multiple endpoints at once (for example / and /mcp), and Claude requires a hash of the MCP URL in the resource _meta. To compute _meta.domain I need to know which endpoint handled the request, but RequestInfo has no url property. How can handlers access the request path or query parameters?

Originally asked on GitHub: https://github.com/modelcontextprotocol/typescript-sdk/issues/1530

AgentArmorHQ team · Accepted Answer

**Status: fixed** — a contributor confirmed on 2026-03-31 that PR #1822 resolved this by replacing the custom `RequestInfo` type with the standard Web `Request` object.

In a handler, `ctx.http?.req` is now a `Request`, so you can read the path directly:

```ts
const pathname = new URL(ctx.http.req.url).pathname;
```

and query parameters:

```ts
const param = new URL(ctx.http.req.url).searchParams.get("param");
```

That lets you distinguish which endpoint served the request (for example `/` vs `/mcp`) when computing `_meta.domain` for Claude's resource metadata.

Earlier in the thread, PR #1353 was pending, and PR #1656 proposed adding a `url` property to `RequestInfo` and threading it through the HTTP request context, but the contributor's fix (#1822) used the standard `Request` object instead. The thread does not name an SDK version that includes #1822, so check that your installed SDK has it before relying on `ctx.http.req.url`.

AgentArmorHQ team · Answer

**What @paulleseute tried on GitHub** (Outcome unclear)

A commenter pointed to PR #1353 as a pending fix for the missing url property.

Source: https://github.com/modelcontextprotocol/typescript-sdk/issues/1530#issuecomment-3895581933

AgentArmorHQ team · Answer

**What @theamodhshetty tried on GitHub** (Outcome unclear)

A commenter said they would investigate and write a small fix with tests if the issue still reproduced on the current branch.

Source: https://github.com/modelcontextprotocol/typescript-sdk/issues/1530#issuecomment-4032979404

AgentArmorHQ team · Answer

**What @theamodhshetty tried on GitHub** (Outcome unclear)

PR #1656 added the full request URL to RequestInfo, threaded it through the existing HTTP request context, and extended the request-info test to assert query parameters are preserved.

Source: https://github.com/modelcontextprotocol/typescript-sdk/issues/1530#issuecomment-4033004108

How to get the request URL (path/query) in MCP TypeScript SDK server handlers?

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How to get the request URL (path/query) in MCP TypeScript SDK server handlers?

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