You can let ChatGPT, Claude or another AI assistant work with your Ash Fuel account. It signs in as you, can read your daily food, water and weight summary, and your weight history. It can only read, never change your data. You approve the connection once, and you can remove it any time.
Ash Fuel MCP server URL
…
Ash Fuel's numbers are estimates — your assistant will see the same estimated calories and macros you see in the app. Ash Fuel is a wellness tracking tool, never medical advice.
Connect
ChatGPT
1Open ChatGPT's connector settings and turn on Developer mode. If you don't see it, a ChatGPT workspace admin needs to enable it first.
3Name it Ash Fuel and paste the server URL above into the URL field.
4Review the details, tick "I understand and want to continue", then click Create. ChatGPT shows this warning for every custom server, not just Ash Fuel.
5Pick Ash Fuel from the chat composer (+ → Apps), then ask ChatGPT something like "What did I eat today?" or "Log a 300-calorie snack". You'll sign in to your Ash Fuel account the first time.
Claude
1Open Claude's add-connector dialog — the name and URL come prefilled. If the form doesn't open, go to Claude's Connectors page, choose Add custom connector, name it Ash Fuel and paste the server URL above.
2Review the details and click Add.
3Enable Ash Fuel from the chat composer, then ask Claude something like "How much water have I had today?". You'll sign in to your Ash Fuel account the first time.
Claude Code
Run this one-line command in a terminal:
Terminal command
claude mcp add --scope user --transport http ash-fuel '<MCP URL>'
1Start Claude Code and run /mcp to confirm Ash Fuel is connected. If the tools are protected, Claude Code asks you to sign in from that same menu.
2Then just ask Claude Code to use Ash Fuel — for example "How has my weight changed this month?".
Other AI assistants
Any assistant that supports remote MCP servers can connect:
1Open the assistant's MCP server or custom connector settings.
2Create a remote MCP server connection.
3Name it Ash Fuel and paste the server URL from the top of this page.
4Finish any sign-in or approval prompts.
5Enable the connection, then ask the assistant to use Ash Fuel.
After Ash Fuel gets updates
Assistants remember a snapshot of Ash Fuel's abilities, so after we ship new features it's worth refreshing the connection:
ChatGPT
1Open ChatGPT's Plugins page and select Ash Fuel.
2Scroll to "Information" and click "Refresh".
3If the Ash Fuel URL ever changes, ChatGPT can't update it in place — delete the app and add it again with the latest URL from this page.
4Start a new chat and ask ChatGPT to use Ash Fuel.
Claude
1Open Claude's Connectors page and select Ash Fuel.
2Refresh or update the connector's tools.
3If the Ash Fuel URL ever changes, remove the connector and add it again with the latest URL from this page.
4Ask Claude to use Ash Fuel.
Claude Code
1Start a new Claude Code session — it picks up the latest tools when it connects.
2If the URL changed, run claude mcp remove ash-fuel and then the install command above again with the latest URL.
3Ask Claude Code to use Ash Fuel.
Other AI assistants
1Open the assistant's MCP server or connector settings.
2Select the Ash Fuel connection.
3Refresh the tool list, reload the server, or reconnect it.
4If the URL changed, paste the latest URL from the top of this page.
5Start a new chat and ask the assistant to use Ash Fuel.
Your data, your call
An assistant connected this way only ever sees and changes your Ash Fuel data, under the same protections as the app itself. Approving the connection is a one-time choice, and you can deny or remove it whenever you like.