Authenticate with your API key in the
X-API-Key header. See Authentication. Co-founder endpoints use 0 API credits. Briefings themselves need the Startup plan or higher.https://api.appeeky.com/v1 and return { "data": ... }.
Setup and briefings
Start a briefing
GET /cofounder/runs?limit=1, then read it with GET /cofounder/reports?limit=1. The briefingMarkdown field of a report holds the briefing text.
Preference fields
Ask
answer (Markdown) and proposedActions: changes the answer queued for your approval. Set scope to portfolio to ask across all your apps.
Actions
status is one of proposed, approved, applied, rejected, superseded. Approving runs the change right away through the connected integration.
Always-on
cron is a 5-field cron in your timezone (0 9 * * 1 is Mondays at 09:00). runAt is a local date-time for a one-off run (2026-11-20T09:00).
Custom webhook
Send events from your own systems, such as a support backlog spike. Each one becomes a signal that can trigger an alert.
Sign the raw JSON body with HMAC-SHA256 and your secret:
summary is required. Optional: severity (info, low, medium, high, critical; default medium), appId, metricPath, fingerprint, magnitude.
Why analysis
metricPath is asc.downloads or asc.revenue.
Goals, commitments and finance
Knowledge and memory
Integrations
Slack, Linear, GitHub and Notion are easiest to connect from App Co-founder → Integrations, which handles the sign-in for you.

