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/ Base Native Data Skill · ChatGPT + MCP

Give ChatGPT live, source-backed Base data.

Full walkthrough

Watch the complete setup

See the connector configuration, authorization flow, and first data question from start to finish.

Base Native Data Skill · Setup1:20 · Guided walkthrough
01

Ask in plain language

No query syntax. Ask a question and ChatGPT selects the relevant Dataline data tool.

02

Inspect the sources

Use returned context and source references to understand where an answer came from.

03

Stay in control

The skill retrieves data only. It does not trade, sign, submit, or automatically execute actions.

Installation guide

Connect Dataline to ChatGPT

Follow the current ChatGPT connector flow below. The interface can vary slightly by plan or rollout.

01

Open ChatGPT settings

Open Settings from your ChatGPT profile menu.

Use ChatGPT on the web, open your profile menu, and select Settings.

02

Enable developer mode

Turn on Developer mode.

Open Security and login, find Developer mode, and enable it. ChatGPT shows a general warning for custom connectors; Dataline requests read-only data access.

ChatGPT Security and login settings with Developer mode enabled
Guided viewFind Developer mode and confirm the switch is enabled.
03

Add the Dataline connector

Create a custom MCP connection.

Open Plugins, select the add button, and create a new plugin. Set the name to Dataline, choose Server URL, enter the endpoint below, and set Authentication to OAuth. In OAuth advanced settings, keep Dynamic Client Registration (DCR), add data.*.read as the default scope, confirm the custom MCP notice, and select Create.

MCP endpointhttps://mcp.dataline.xyz

The screenshot may show the host without its path. Use the complete endpoint above, including /mcp.

ChatGPT New Plugin form configured with the Dataline server URL, OAuth, Dynamic Client Registration, and the data read scope
Guided viewCheck the server URL, OAuth method, and read-only scope before creating.
04

Complete authorization

Sign in with Dataline.

After creating the plugin, open Dataline and select Sign in with Dataline. Review ChatGPT's connector notice, complete Dataline sign-in, and return to ChatGPT. You can revoke access later from ChatGPT settings.

Dataline OAuth authorization dialog in ChatGPT
Guided viewContinue with Dataline and review the requested permissions.
05

Ask your first data question

Select Dataline and ask a question.

Start a new chat, enable Dataline for the conversation, and ask for current data. ChatGPT will show when it calls a Dataline tool.

ChatGPT using Dataline to answer a prediction-market data question
Guided viewConfirm Dataline is selected, then inspect the returned answer and source.
Try it

Start with a read-only prompt

These examples request information only. They do not ask ChatGPT to trade or perform an onchain action.

01Live market check

What is the current price and 24-hour change for ETH? Include the data source.

Preview below
02Trend comparison

Compare Base network activity over the last seven days and summarize the main change.

Preview below
03Prediction signal

Who's favored to win the 2026 World Cup according to prediction markets?

Preview below
01
What this question returns

A concise price snapshot with the 24-hour move and a source you can inspect.

Data lensMarket data

Early access

Try Dataline during early access.

Connect Dataline using the access available to your account. Available features and usage limits depend on your current access policy while public pricing and packages are being finalized.

View plan details

Privacy & security

Data retrieval, not execution.

  • Requests the read-only data.*.read scope.
  • Does not request a wallet signature or transaction approval.
  • Does not place trades, modify accounts, or automatically execute actions.
  • Authorization can be revoked from ChatGPT or your Dataline account.
Ready to ask your first question?

Connect once. Explore Base data in ChatGPT.

Review setupOpen MCP technical reference