MCP · AI assistants

Use CityWalk Plan in your AI assistant

CityWalk Plan is a Model Context Protocol (MCP) server, so Claude, ChatGPT, and other AI assistants can build a real day-by-day walking itinerary for you — right inside the chat. Free, public, no API key.

Remote MCP endpoint https://citywalkplan.com/api/mcp
Streamable HTTP · public · no auth · no API key

Listed in the official MCP registry as com.citywalkplan/planner.

What you can ask

The server exposes three tools. Your assistant calls them for you — you just ask in plain language.

list_cities

The cities CityWalk Plan covers, grouped by region.

e.g. “Which walkable cities does CityWalk Plan support in Europe?”
plan_city_walk

A day-by-day walking route for a city — by number of days and pace (easy / balanced / packed), with optional must-see places. Real, hand-curated stops grouped by neighborhood.

e.g. “Plan a 3-day walking trip in Lisbon at an easy pace.”
get_place

Details for one place: type, neighborhood, suggested duration, coordinates, Wikipedia link.

e.g. “Tell me about Sensō-ji in Tokyo.”

Add it to Claude

Custom connectors are available on Claude Free, Pro, and Max (Free is limited to one).

  1. In Claude, open Customize → Connectors.
  2. Click + Add, choose Add custom connector, and name it CityWalk Plan.
  3. Paste https://citywalkplan.com/api/mcp and click Continue. Under Authentication, choose No sign in, then click Add.
  4. In a new conversation, click + at the lower left → Connectors, switch on CityWalk Plan, and ask it to plan a walk.

Add it to ChatGPT

OpenAI's current developer-mode guide says ChatGPT Pro can connect read-only MCPs; full MCP is available in beta for eligible Business, Enterprise, and Edu workspaces. CityWalk Plan is read-only. ChatGPT web, admin, and role limits apply.

  1. On Pro, turn on developer mode in ChatGPT settings. In a managed workspace, confirm an admin or owner has enabled access for your role.
  2. In ChatGPT on the web, open Plugins, select +, then Add custom MCP server. Name it CityWalk Plan, paste https://citywalkplan.com/api/mcp, choose No authentication, accept the risk warning, and select Create as a plugin.
  3. Install CityWalk Plan from your personal plugins, start a new chat, type @, select it, and ask ChatGPT to plan a walking itinerary. (Some OpenAI help pages still show the older Settings → Apps → Create route.)
ChatGPT Free note: seeing the app directory does not mean you can paste any MCP URL. Direct custom setup currently starts with read-only MCP access on Pro; full MCP is for eligible managed workspaces. Claude Free allows one custom connector. Read the full 2026 plan comparison and troubleshooting guide →

Example prompts

Every itinerary comes with a citywalkplan.com link, so you can open the route on a map, reorder or remove stops, share it, or export an offline copy.

FAQ

Is it free?

Yes — the CityWalk Plan MCP endpoint is public and free, with no API key, CityWalk account, or sign-up. Your chosen AI assistant's own plan and usage limits still apply.

Which AI assistants can use it?

Any compatible MCP client can use the server. Claude Free currently allows one custom remote connector. ChatGPT Pro can connect read-only MCPs in developer mode; full MCP is available to eligible Business, Enterprise, and Edu workspaces.

Do I need an API key or login?

No CityWalk Plan key or login is needed. The server uses Streamable HTTP with no authentication. You still need an account with the AI assistant you choose.

Is it in the official MCP registry?

Yes — published as com.citywalkplan/planner, so compatible MCP clients and directories can discover it. The MCP Registry is separate from the ChatGPT app directory.

Are the places real?

Yes. Routes are built from a fixed catalog of real, hand-curated places with verified map coordinates — not invented by the AI.

Can I edit the itinerary afterwards?

Yes. Every result links back to citywalkplan.com, where you can open it on a map, reorder or remove stops, share a link, or export an offline copy.

Prefer the website?

You don't need an AI assistant — plan a walk directly in your browser.

Open the planner →