How do I connect an AI tool to PostFast with an API key?
Sign in to PostFast, open Settings, and create a key in the Public API section. Configure your tool to call https://postfast.sh/api/mcp with the header Authorization: Bearer followed by your key. The tool then has the same draft-only access as an OAuth connection. Keep the key private.
Steps
- 1Create the key. In PostFast, open Settings and the Public API section and create an API key.
- 2Configure your client. Point it at https://postfast.sh/api/mcp (Streamable HTTP) and send Authorization: Bearer <key>.
- 3Create drafts. Ask the tool to create draft posts for your channels.
- 4Approve in PostFast. Open each draft and press Post now or Add to calendar when it looks right.
Limits
- Through MCP, drafts are the most a tool can create; it cannot publish or schedule.
- Anyone holding the key can create drafts in your account, so do not share it.
- Prefer OAuth if your client supports it; it needs no key to store.
FAQ
Where do I find my API key?
In PostFast Settings, in the Public API section.
How do I stop a key from working?
Revoke it in PostFast.
Related
- How can Claude or ChatGPT draft my video posts while I approve them?
- How do I reconnect a channel that expired or stopped posting?
Last reviewed: 2026-11-13