AT Protocol MCP Server

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like_post ​

Like a post on AT Protocol.

Authentication ​

Required: Yes (Private tool)

Parameters ​

uri (required) ​

  • Type: string
  • Description: AT Protocol URI of the post to like

cid (required) ​

  • Type: string
  • Description: Content identifier (CID) of the post

Response ​

typescript
{
  uri: string; // URI of the like record
  cid: string; // CID of the like record
  success: boolean; // Operation success status
  message: string; // Success message
  likedPost: {
    uri: string; // URI of the liked post
    cid: string; // CID of the liked post
  }
}

Examples ​

Like a Post ​

json
{
  "uri": "at://did:plc:abc123/app.bsky.feed.post/xyz789",
  "cid": "bafyreiabc123..."
}

Response:

json
{
  "uri": "at://did:plc:myuser/app.bsky.feed.like/like123",
  "cid": "bafyreidef456...",
  "success": true,
  "message": "Post liked successfully",
  "likedPost": {
    "uri": "at://did:plc:abc123/app.bsky.feed.post/xyz789",
    "cid": "bafyreiabc123..."
  }
}

Already Liked Post ​

If the post is already liked, the tool returns the existing like record:

json
{
  "uri": "at://did:plc:myuser/app.bsky.feed.like/like123",
  "cid": "bafyreidef456...",
  "success": true,
  "message": "Post was already liked",
  "likedPost": {
    "uri": "at://did:plc:abc123/app.bsky.feed.post/xyz789",
    "cid": "bafyreiabc123..."
  }
}

Error Handling ​

Common Errors ​

Invalid URI ​

json
{
  "error": "Invalid AT Protocol URI format",
  "code": "VALIDATION_ERROR"
}

Post Not Found ​

json
{
  "error": "Post not found",
  "code": "NOT_FOUND"
}

Best Practices ​

  • Check if a post is already liked before calling this tool to avoid unnecessary operations
  • Store the like URI if you need to unlike the post later
  • Respect rate limits when liking multiple posts

See Also ​