Let the AI you already use read your records.

What you can ask

Ask in plain words. Your AI finds which records you have, reads only what the question needs, and says what the data covers and what is missing.

• Sleep“What disturbed my sleep most this month?”
• Recovery“Should I train hard or rest today?”
• Meals“Do late dinners change how I sleep?”
• Schedule“Do meeting-heavy days hurt my sleep?”

Before you start

1. A Decis account. The free plan includes 500 data reads a month.
2. At least one connected source: Apple Health (through the Decis iOS app), Google Health, WHOOP, or Google Calendar.
3. An app that supports remote MCP servers, or a Mac or Linux terminal for the CLI.

Connect your app

Every app connects to the same address and signs in through your browser. You see what will be read before you allow it.

https://www.decis.me/mcp

Claudeweb · desktop · mobile

Add to Claude

Claude opens an "Add custom connector" window with Decis and https://www.decis.me/mcp filled in, and a warning that an external link suggested it. Check the name and address and press Continue. On the next step, leave the sign-in options as they are and press Add, then press Connect, sign in to Decis, and allow access.

1. In Claude, open Customize → Connectors.
2. Press Add at the top right and choose "Add custom connector".
3. Enter Decis as the name, paste the MCP endpoint above, and press Continue.
4. Leave the sign-in options as they are and press Add, then press Connect.
5. Sign in to Decis and allow access on Decis's consent screen.
6. Toggle Decis tools per conversation from the "+" menu → Connectors. At first Claude asks before it runs each tool (Needs approval); to stop asking, choose Always allow for Decis in Customize → Connectors.

Claude's free plan allows one custom connector. If you already use one, remove it before adding Decis. On Team and Enterprise, an Owner adds it first under Organization settings → Connectors, then each member presses Connect.

Claude Codeterminal

Add it with one line in your terminal. --scope user makes it available in every project (use --scope project to share it with your team).

Command

claude mcp add --transport http --scope user decis https://www.decis.me/mcp

After adding, run /mcp inside a session to sign in, or start the browser login directly:

Command

claude mcp login decis

ChatGPTweb, developer mode

1. Turn on Developer mode under Settings → Apps & Connectors → Advanced settings.
2. In Apps & Connectors, choose "Create" and enter a name plus the MCP endpoint above.
3. Select OAuth as the authentication method and connect — a browser window opens the Decis consent screen.
4. In each new conversation, enable Decis from the composer's developer-mode tool.

Pro · Plus · Business · Enterprise · Edu, web only · Decis tools are all annotated read-only, so they can run without per-call confirmation. On Business and Enterprise an admin may need to allow developer mode under workspace permissions first.

CodexCLI · IDE · desktop

One line is all it takes. Codex detects OAuth automatically and opens the browser consent screen, and the config is shared across the CLI, IDE extension, and the ChatGPT desktop app.

Command

codex mcp add decis --url https://www.decis.me/mcp

To manage it in the config file directly, this is all you need (no auth key required).

~/.codex/config.toml

[mcp_servers.decis]
url = "https://www.decis.me/mcp"

Cursoreditor

Add the following to ~/.cursor/mcp.json (global) or .cursor/mcp.json (shared per project).

~/.cursor/mcp.json

{
  "mcpServers": {
    "decis": {
      "url": "https://www.decis.me/mcp"
    }
  }
}

After saving, enable decis in the sidebar's Customize panel to open the browser OAuth consent.

VS CodeCopilot

Add it with one terminal command, or

Command

code --add-mcp '{"name":"decis","type":"http","url":"https://www.decis.me/mcp"}'

manage it in the config file — note VS Code's top-level key is servers, not mcpServers.

.vscode/mcp.json

{
  "servers": {
    "decis": {
      "type": "http",
      "url": "https://www.decis.me/mcp"
    }
  }
}

OpenClawagent

Add Decis to OpenClaw's remote MCP registry as a Streamable HTTP server using OAuth.

Command

openclaw mcp add decis \
  --url https://www.decis.me/mcp \
  --transport streamable-http \
  --auth oauth

Then sign in to Decis and approve read-only access in your browser.

Command

openclaw mcp login decis

Run a probe to verify the connection and discover the available tools.

Command

openclaw mcp probe decis

Hermesagent

Add the Decis remote MCP server to Hermes. Hermes handles OAuth discovery, PKCE, and token refresh.

~/.hermes/config.yaml

mcp_servers:
  decis:
    url: "https://www.decis.me/mcp"
    auth: oauth

Restart Hermes after saving. The first Decis tool connection opens the browser sign-in and read-only consent flow.

Other MCP appStreamable HTTP · OAuth

Any client that supports remote HTTP MCP works with the standard shape.

Command

{
  "mcpServers": {
    "decis": {
      "type": "http",
      "url": "https://www.decis.me/mcp"
    }
  }
}

Clients that only support local (stdio) servers can go through the mcp-remote proxy and get the same OAuth consent flow.

Command

{
  "mcpServers": {
    "decis": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://www.decis.me/mcp", "--transport", "http-only"]
    }
  }
}

Tools

Decis has eleven tools, and every one of them only reads. Each is marked read-only, and none can create, change, or delete records. In Claude, a new connection asks before each tool runs (Needs approval); you can switch Decis to Always allow in the connector settings.

get_account

Your account's language and time zone; your email only when you ask.

Read-only

get_data_status

Which sources are connected and when they last synced.

Read-only

list_datasets

The datasets your account has, such as sleep or meals.

Read-only

describe_dataset

Units, date range, and source of one dataset.

Read-only

query_datasets

Values from up to ten datasets for a date range.

Read-only · counts as a read

get_context

A summary of your recent days.

Read-only · counts as a read

get_today

Today's brief.

Read-only · counts as a read

get_usage

How much of this month's allowance you have used.

Read-only

get_decision_guide

The steps Decis uses to weigh a personal decision.

Read-only

render_causal_dag

Draws a cause-and-effect diagram for a report. Nothing is saved.

Read-only

search_decision_report_evidence

Searches reviewed research for a decision report.

Read-only

Your app's prompt menu also has two prompts, decide and decision_report. Only tools that count as a read use your monthly allowance.

Data and privacy

Decis gives your AI only what a question needs. What the app does with it follows that app's own policy.

Full details are in the Privacy policy. Decis gives information to help you understand your records; it is not medical advice.

Disconnect

You can stop an app from reading your records at any time.

Records an app already received stay with that app under its policy. Deleting your Decis account removes every connection.

Decis CLI

Read the same records from your terminal and from coding agents like Claude Code and Codex. The CLI is a signed, notarized binary.

brew install tab0inc/tap/decis-cli

curl -fsSL https://decis.me/install.sh | sh

Commands

decis auth login

Sign in through your browser

decis today

Today's brief

decis data list

The datasets you have; then decis data query for values

decis context

Your recent days, structured

decis ask

A short answer from Decis's analyst (uses your Ask allowance)

decis work connect <agent>

Sends work-session summaries from coding agents such as Claude Code, Codex, and OpenCode to your Timeline. This is the only command that sends data to Decis, and only for agents you turn on.

decis skill

Instructions for coding agents on when and how to use the CLI

decis doctor

Checks your setup when something is wrong

Agent skill

Install the skill so Claude Code and Codex know when to use Decis. Requires Node.js.

npx -y skills add https://decis.me

Troubleshooting

Support