Postbox is a structured data collection backend for the agentic web, offering endpoints with schema validation, spam filtering, translation, and auto-reply. It integrates with agents and supports MCP, making it ideal for developers building automated workflows.
Postbox is a Forms, surveys & polls product. It focuses on collecting structured data from forms and agents with validation, spam filtering, and automation is complex. It is built as a B2B product for developers and teams building agentic or automated data collection workflows. Postbox follows a freemium model. The product ships for the web, the command line, and API.
Postbox first shipped in 2024. PulseGate's similarity index finds few close equivalents — Postbox occupies a relatively distinct niche. Key capabilities include schema definition, spam filtering, and auto-translation. It exposes integrations via an MCP server and a public API.
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