In-depth architectural comparison of the Hermes Action Bridge and Market Spread 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.
At a Glance & Executive Verdict
Hermes Action Bridge
Developer Tools · Local stdio
Quality: 57/100 (Good) | Auth: No auth required
Market Spread
Developer Tools · Local stdio
Quality: 44/100 (Fair) | Auth: No auth required
Verdict Summary: Choose Hermes Action Bridge if you need specialized Developer Tools tools running via a local process. Choose Market Spread if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Hermes Action Bridge 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).
delegate a request to Hermes. Optional overrides: `mode`, `preset`, `contextFiles`, `yolo`, `dryRun`, and — to trade cost for speed on simple tasks — `model`, `provider`, `maxTurns`, `timeoutSeconds`. Any effective `execute` request opens an interactive confirmation form first.
hermes_plan
shortcut for `hermes_run` with `mode=plan`.
hermes_capabilities
report configured presets, skills, toolsets, runtime, and policy without inventing live integrations.
hermes_presets
list configured presets.
hermes_status
check the configured Hermes runtime command.
Market Spread Tools (2)
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).
Hermes Action Bridge is categorized under Developer Tools and uses a local stdio subprocess. In contrast, Market Spread belongs to Developer Tools using local stdio subprocess. Select Hermes Action Bridge when you need capabilities focused on developer tools and Market Spread when you require tools for developer tools.
Cross-venue prediction-market LANDSCAPE scanner: for one topic, show how 5 venues (Polymarket, Kalshi, Manifold, PredictIt, Futuur) are pricing it side by side and flag divergence. Each venue is queried in parallel; a venue that errors or times out is reported as { reachable: false } and never fail…
venue_quotes
Single-venue drill-down: fetch one venue's current top 5 matches for a query, each as { title, implied_probability (0-1 or null), url }. Useful after compare_topic to look closer at one venue. Implied probability is the main/YES outcome where available; multi-outcome markets report the top outcome…