22 replies

Error Running MCP Server Locally with Wrangler on Cloudflare

I'm currently trying to ship an MCP server to Cloudflare, but when I try to run it locally with

wrangler

wrangler

wrangler

wrangler, I receive this error.

This is what I tried so far:

const router = McpServer.layerHttpRouter({
  name: "My MCP Server",
  version: "1.0.0",
  path: "/mcp"
}).pipe(
  Layer.provide(MyMcpServerTools),
  Layer.provide(FetchHttpClient.layer)
)


const { handler: fetch } = HttpLayerRouter.toWebHandler(router)

export default {
  fetch
}

const router = McpServer.layerHttpRouter({
  name: "My MCP Server",
  version: "1.0.0",
  path: "/mcp"
}).pipe(
  Layer.provide(MyMcpServerTools),
  Layer.provide(FetchHttpClient.layer)
)


const { handler: fetch } = HttpLayerRouter.toWebHandler(router)

export default {
  fetch
}

const router = McpServer.layerHttpRouter({
  name: "My MCP Server",
  version: "1.0.0",
  path: "/mcp"
}).pipe(
  Layer.provide(MyMcpServerTools),
  Layer.provide(FetchHttpClient.layer)
)


const { handler: fetch } = HttpLayerRouter.toWebHandler(router)

export default {
  fetch
}

const router = McpServer.layerHttpRouter({
  name: "My MCP Server",
  version: "1.0.0",
  path: "/mcp"
}).pipe(
  Layer.provide(MyMcpServerTools),
  Layer.provide(FetchHttpClient.layer)
)


const { handler: fetch } = HttpLayerRouter.toWebHandler(router)

export default {
  fetch
}

Any pointer in the right direction is highly appreciated.

Error Running MCP Server Locally with Wrangler on Cloudflare

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