# PostRelay Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## PostRelay

Post one approved creative to X, LinkedIn, Instagram, YouTube, TikTok and Facebook at once.

- Record: https://musedirectory.ai/connector/postrelay
- Category: Marketing & Ads
- Developer: PostRelay (https://post-relay.io)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, sign-in needed, 532ms, checked 2026-11-11T17:11:17Z
- Endpoint: https://post-relay.io/api/public/mcp
- Auth: Sign in with your account; Pricing: unknown
- Screening: Screened, no issues found (2026-11-11T17:11:17Z)
- Source: Found in the official MCP Registry (io.post-relay/postrelay) https://registry.modelcontextprotocol.io/v0/servers?search=io.post-relay%2Fpostrelay

Connects to six major social platforms through a single sign-in. Muse can take a creative you have already approved and publish it across X, LinkedIn, Instagram, YouTube, TikTok and Facebook, so you do not have to upload the same post to each network by hand.

Example request: "Post this approved image and caption to all my social accounts."

How to connect: PostRelay is not in Muse's Connectors list yet, and it needs you to sign in with your PostRelay account. Apps that need this kind of sign-in usually cannot be used from a Muse chat yet. Follow it here and we will tell you when it reaches Muse.

Screening checks:
- MCP handshake: pass (Requires sign-in (publishes OAuth metadata))
- Domain against threat feeds (Cloudflare security DNS): pass (post-relay.io not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: n/a (Tools are behind sign-in)
- Inputs asking for passwords, card numbers or seed phrases: n/a (Tools are behind sign-in)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)