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OpenCode includes Inception as a built-in provider. Connect your Inception API key to use Mercury 3. Install OpenCode from opencode.ai, then run opencode in your terminal.

Setup

1

Run /connect

Type the /connect command and press Enter.
The /connect command in the OpenCode prompt
2

Search for Inception

Start typing Inception in the provider search and select it.
Inception selected in the OpenCode Connect a provider dialog
3

Add your API key

Select Add account, then paste your Inception API key when prompted.
Add account option for the Inception provider in OpenCode
4

Select Mercury 3

Select Mercury 3 as your default model. To change models later, run the /models command.
OpenCode providers documentation