Fillo vs Heard Friends

In-depth architectural comparison of the Fillo and Heard Friends MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Fillo when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Form provisioning, Form scaffolding, Form publishing.

Explore Fillo Details

H

Choose Heard Friends when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: heard_report, heard_inbox, heard_inbox_ack.

Explore Heard Friends Details

Feature & Specification Comparison

Specification	Fillo Developer Tools	H Heard Friends Developer Tools
Summary
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "fillo": {
      "command": "npx",
      "args": [
        "-y",
        "@usefillo/cli@latest"
      ]
    }
  }
}

{
  "mcpServers": {
    "heard-friends": {
      "url": "https://api.heard.dev/v1/mcp/agent"
    }
  }
}

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