Herd MCP server fails in Cursor

[ErwinLiemburg]

Hopefully someone can help me with this, the Herd MCP server won't start in my Cursor environment. Getting this message:

2026-02-13 16:41:56.178 [info] Handling CreateClient action
2026-02-13 16:41:56.178 [info] Starting new stdio process with command: php /Applications/Herd.app/Contents/Resources/herd-mcp.phar
2026-02-13 16:41:56.185 [info] Handling ListOfferings action, server stored: false
2026-02-13 16:41:56.185 [info] Server creation in progress, waiting for completion
2026-02-13 16:41:56.191 [info] Handling GetInstructions action
2026-02-13 16:41:56.191 [info] Server creation in progress for getInstructions, waiting
2026-02-13 16:41:56.309 [info] Handling GetInstructions action
2026-02-13 16:41:56.309 [info] Server creation in progress for getInstructions, waiting
2026-02-13 16:41:56.432 [info] Successfully connected to stdio server
2026-02-13 16:41:56.432 [info] Storing stdio client user-herd
2026-02-13 16:41:56.432 [info] CreateClient completed, server stored: true
2026-02-13 16:41:56.432 [info] Connected to stdio server, fetching offerings
2026-02-13 16:41:56.436 [info] listOfferings: Found 11 tools
2026-02-13 16:41:56.438 [error] Client error for command Unexpected token 'w', "[warning] F"... is not valid JSON
2026-02-13 16:41:56.439 [info] listPrompts: Found 1 prompts
2026-02-13 16:41:56.441 [info] listResources: Found 1 resources
2026-02-13 16:41:56.441 [info] Found 11 tools, 1 prompts, and 1 resources
2026-02-13 16:41:56.442 [info] Handling GetInstructions action
2026-02-13 16:41:56.450 [info] Handling GetInstructions action
2026-02-13 16:41:56.455 [info] Handling GetInstructions action
2026-02-13 16:41:56.459 [info] Handling ListOfferings action, server stored: true
2026-02-13 16:41:56.459 [info] Connected to stdio server, fetching offerings
2026-02-13 16:41:56.460 [info] listOfferings: Found 11 tools
2026-02-13 16:41:56.461 [info] listPrompts: Found 1 prompts
2026-02-13 16:41:56.462 [info] Handling ListToolsRaw action
2026-02-13 16:41:56.462 [info] listResources: Found 1 resources
2026-02-13 16:41:56.462 [info] Found 11 tools, 1 prompts, and 1 resources
2026-02-13 16:41:56.496 [info] Handling GetInstructions action
2026-02-13 16:41:56.506 [info] Handling CreateClient action
2026-02-13 16:41:56.506 [info] CreateClient completed, server stored: true
2026-02-13 16:41:56.511 [info] Handling ListOfferings action, server stored: true
2026-02-13 16:41:56.511 [info] Connected to stdio server, fetching offerings
2026-02-13 16:41:56.511 [info] Handling ListToolsRaw action
2026-02-13 16:41:56.511 [info] Handling ListToolsRaw action
2026-02-13 16:41:56.512 [info] listOfferings: Found 11 tools
2026-02-13 16:41:56.512 [info] Handling ListToolsRaw action
2026-02-13 16:41:56.513 [info] listPrompts: Found 1 prompts
2026-02-13 16:41:56.514 [info] listResources: Found 1 resources
2026-02-13 16:41:56.514 [info] Found 11 tools, 1 prompts, and 1 resources
2026-02-13 16:41:56.544 [info] Handling GetInstructions action
2026-02-13 16:41:56.553 [info] Handling GetInstructions action
2026-02-13 16:41:56.555 [info] Handling ListToolsRaw action
2026-02-13 16:42:06.249 [info] Handling CreateClient action
2026-02-13 16:42:06.249 [info] CreateClient completed, server stored: true
2026-02-13 16:42:06.256 [info] Handling ListOfferings action, server stored: true
2026-02-13 16:42:06.256 [info] Connected to stdio server, fetching offerings
2026-02-13 16:42:06.256 [info] listOfferings: Found 11 tools
2026-02-13 16:42:06.258 [info] listPrompts: Found 1 prompts
2026-02-13 16:42:06.259 [info] listResources: Found 1 resources
2026-02-13 16:42:06.259 [info] Found 11 tools, 1 prompts, and 1 resources
2026-02-13 16:42:06.287 [info] Handling GetInstructions action
2026-02-13 16:42:06.297 [info] Handling CreateClient action
2026-02-13 16:42:06.297 [info] CreateClient completed, server stored: true
2026-02-13 16:42:06.302 [info] Handling ListOfferings action, server stored: true
2026-02-13 16:42:06.302 [info] Connected to stdio server, fetching offerings
2026-02-13 16:42:06.302 [info] listOfferings: Found 11 tools
2026-02-13 16:42:06.303 [info] listPrompts: Found 1 prompts
2026-02-13 16:42:06.305 [info] listResources: Found 1 resources
2026-02-13 16:42:06.305 [info] Found 11 tools, 1 prompts, and 1 resources
2026-02-13 16:42:06.332 [info] Handling GetInstructions action
2026-02-13 16:42:09.313 [info] Handling ListOfferings action, server stored: true
2026-02-13 16:42:09.314 [info] Connected to stdio server, fetching offerings
2026-02-13 16:42:09.314 [info] listOfferings: Found 11 tools
2026-02-13 16:42:09.315 [info] listPrompts: Found 1 prompts
2026-02-13 16:42:09.316 [info] listResources: Found 1 resources
2026-02-13 16:42:09.317 [info] Found 11 tools, 1 prompts, and 1 resources
2026-02-13 16:42:09.342 [info] Handling GetInstructions action
2026-02-13 16:42:26.555 [info] Handling DeleteClient action
2026-02-13 16:42:26.555 [info] Cleaning up
2026-02-13 16:43:28.340 [info] Handling DeleteClient action
2026-02-13 16:43:28.345 [info] Handling ListOfferings action, server stored: false
2026-02-13 16:43:28.345 [info] Server not yet created, returning empty offerings
2026-02-13 16:43:28.350 [info] Handling GetInstructions action
2026-02-13 16:43:28.350 [error] No server info found
2026-02-13 16:43:28.382 [info] Handling GetInstructions action
2026-02-13 16:43:28.382 [error] No server info found

My .cursor > mcp.json is:

{
    "mcpServers": {
        "laravel-boost": {
            "command": "php",
            "args": ["artisan", "boost:mcp"]
        },
        "herd": {
            "command": "php",
            "args": ["/Applications/Herd.app/Contents/Resources/herd-mcp.phar"],
            "env": {
                "SITE_PATH": "/Users/erwinliemburg/web/Webdesign/tracking/tracking"
            }
        }
    }
}

Working on Mac Tahoe 26.3. Installed Herd MCP using Laravel Boost.

Anybody also had this problem? How did you solve it?