# D-O.SI > Cloud DevOps Gateway for AI Agents & Vibe Coders. Zero Docker. Zero local setup. D-O.SI provides instant cloud-hosted DevOps primitives and testing utilities for autonomous coding agents (Claude, Codex, Antigravity, Cursor) and vibe-coding platforms (Lovable, Bolt.new). It eliminates the need for local Docker daemons, complex tunneling (Ngrok), or manual webhook routing during software development. ## Core Value Proposition - **Zero Local Daemons or Docker:** Runs entirely as an ephemeral cloud gateway, keeping local developer machines and cloud IDE containers lightweight and unencumbered. - **Universal Agent Protocol:** Implements the official Model Context Protocol (MCP 2025-03-26) over stateless Streamable HTTP. - **Zero Prompt Liability:** Never logs, stores, or trains on code, chat prompts, or LLM reasoning. Only discrete tool execution arguments are processed in volatile, ephemeral RAM. - **Vibe Code Native:** Works seamlessly inside browser-based environments where local port-forwarding is impossible. ## The 5 Core Cloud Primitives 1. **Payment Webhook Relays:** Captures and inspects live test webhooks from Stripe, Polar.sh, and Lemon Squeezy on localhost or ephemeral sandboxes without Ngrok or router port-forwarding. 2. **Auth Email & OTP Radar:** Ephemeral, disposable 15-minute inboxes that automatically capture signup verification emails and extract 6-digit OTP codes or magic links so AI agents test auth flows autonomously. 3. **Domain & SSL Deployment Radar:** Instant diagnostics for custom domain DNS propagation, nameserver records, and TLS/SSL certificate status to catch broken production rollouts. 4. **CORS Header Architect:** Generates production-ready, security-audited CORS middleware configs for Next.js, Express, FastAPI, and Hono in under 10ms. 5. **Instant JSON Echo Lab:** On-demand mock REST endpoints returning arbitrary JSON and custom HTTP status codes (200, 400, 401, 404, 500) to test frontend UI states and error handling before backends are built. ## Integration & Configuration Connect any MCP-compatible agent or editor in 30 seconds using a single canonical endpoint: ```json { "mcpServers": { "d-o-si": { "url": "https://d-o.si/mcp", "headers": { "X-Api-Key": "YOUR_API_KEY" } } } } ``` *Note: Query parameter authentication (`https://d-o.si/mcp?key=YOUR_API_KEY`) is also supported.* ## Pricing & Tiers - **Hacker Tier ($0 / Free Forever):** 100 free tool calls / month. Includes all 5 core DevOps tools, ephemeral email radar, and webhook relays. - **Operator Tier ($4.50 / mo billed annually):** 5,000 tool calls / month. Priority edge routing (<15ms) and autonomous OTP radar. Limited pre-launch founder allocation. - **Fleet Tier ($29 / mo):** 20,000 tool calls / month. Shared multi-seat team API keys and concurrent multi-agent autonomous fleets. ## Public Resources & URLs - [Home Page](https://d-o.si/): Product briefing, live interactive tool workbenches, and setup guide. - [Tools Overview](https://d-o.si/#tools): Interactive demos for webhooks, email radar, SSL, CORS, and JSON mocking. - [Pricing](https://d-o.si/#pricing): Fixed predictable tiers and instant key provisioning. - [MCP Auto-Discovery](https://d-o.si/.well-known/mcp.json): Standard RFC 8615 machine-readable discovery manifest. - [Sitemap](https://d-o.si/sitemap.xml): Public sitemap roadmap.