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Misskey

Notes on misskey.io or any Misskey server.

What it supports

  • Up to 3,000 characters per post, with formatting.
  • Threads: follow-up parts go out as replies, in order.
  • Media: up to 16 images, with alt text.
  • Every post is read back from the platform by its id after it goes out.
  • Approvals, scheduling and one-time delivery work the same as on every other channel.

How to connect

In Mynahcast: Channels → Add channel → Misskey.

Sign in with Misskey

  1. 1You'll approve Mynahcast on your server (MiAuth). We ask to read your account, post notes and upload images.

You'll paste

  • Your Misskey server

Use an access token

  1. 1On your server: Settings → API → Generate access token.
  2. 2Allow: “View your account information”, “Compose or delete notes”, “Access your Drive files and folders” (write). Copy the token.

You'll paste

  • Your Misskey server
  • Access token

Credentials are encrypted before they're stored and never shown again. Disconnect any time from the Channels page.

Post to Misskey from your AI agent

Once Misskey is connected, any agent with a Mynahcast key can target it: Claude Code, Cursor and other MCP clients through mynahcast_create_post, ChatGPT through a GPT action, or your own code through the REST API. Connect your agent.

REST: schedule a Misskey post
curl -X POST "https://api.mynahcast.xyz/v1/posts" \
  -H "Authorization: Bearer $MYNAHCAST_KEY" \
  -H "Idempotency-Key: misskey-001" \
  -H "Content-Type: application/json" \
  -d '{
    "brandId": "<brand-uuid>",
    "content": { "body": "Your post text" },
    "targets": [{ "channelId": "<misskey-channel-uuid>" }]
  }'

Frequently asked questions

Can an AI agent post to Misskey?
Yes. Connect Misskey in Mynahcast, give your agent an Agent API key, and it can draft and schedule Misskey posts through the MCP server (https://api.mynahcast.xyz/mcp) or the REST API. Each post waits for your approval before it goes out.
How do I post to Misskey with an API?
Send POST https://api.mynahcast.xyz/v1/posts with your API key as a bearer token, the brand id, the post body and your Misskey channel id as a target. Add an Idempotency-Key header so a retry never posts twice.
What is the character limit for Misskey posts in Mynahcast?
Up to 3,000 characters per post; longer text can go out as a thread of replies. Mynahcast checks the limit before saving, so an agent finds out at validation time, not at publish time.
Is posting to Misskey with Mynahcast free?
Every Mynahcast plan includes every live channel, from $12 per month (5 channels) with a 7-day free trial.
Start 7-day free trialMisskey developer docs