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PromptGate

Introduction

PromptGate is a self-hosted gateway that sits between your applications and the services they call — AI providers (OpenAI, Anthropic, Google, Mistral, Groq, Together, Ollama, Cohere), arbitrary HTTP APIs, and MCP (Model Context Protocol) servers. It centralises credentials, observability, security, and policy so you don’t have to wire those concerns into every app.

Built with Laravel 12, FrankenPHP, and a Claude-Design-inspired UI.

What PromptGate does

Section titled “What PromptGate does”
Project typeWhat it gives you
AI GatewayFirst-class endpoints for AI providers with prompts, schemas, sessions, streaming, failover, guardrails, rate limits, budgets
AI WrapperOpenAI-compatible API surface (/v1/chat/completions, /v1/models) — point any OpenAI SDK at it and route across providers behind aliases
API GatewayHTTP proxy for any upstream API with method allowlists, header policies, OAuth 2.0 service connections, SSRF guard, rate limits
MCP GatewayAggregate multiple upstream MCP servers under one endpoint with namespace prefixing, encrypted bearer tokens, and a Control Plane

Plus on top of all of that:

  • 8 built-in providers: OpenAI · Anthropic · Google Gemini · Mistral · Groq · Together AI · Ollama (local) · Cohere
  • Guardrails: PII filter (regex + LLM-based contextual), prompt-injection guard, keyword blocklist, content-length cap
  • Token system with scopes (chat, models, admin, proxy, mcp) and per-project isolation
  • Observability — dashboard, metrics, live logs, audit log, playground
  • Backup / restore — one-click ZIP export of every table

Who it’s for

Section titled “Who it’s for”
  • Solo developers running an AI side project who want one place for credentials, costs, and rate limits.
  • Small teams standing up an internal gateway so apps don’t each carry their own provider keys.
  • Agentic tooling that wants to expose existing AI endpoints — or proxy upstream services — as MCP tools.

How this documentation is organised

Section titled “How this documentation is organised”
  • Getting Started — install, configure, log in, hello world.
  • Concepts — the mental model: project types, how requests flow.
  • Projects & Endpoints — defining what PromptGate exposes.
  • Providers — registering credentials, picking models, swapping providers.
  • Security — login, tokens, guardrails, rate limits, budgets, SSRF, audit.
  • MCP — bridge, gateway, and control plane (the trio).
  • Observability — what you see in the UI.
  • Administration — gateway-wide settings, webhooks, backup.
  • API Reference — every public endpoint with curl, Python, and Node.js examples.
  • Plugins — coming soon.
  • Cookbook — task-oriented walkthroughs.

License

Section titled “License”

PromptGate Community Edition is source-available under the Business Source License 1.1 — free for internal / non-commercial use, with a change date after which it converts to Apache 2.0. The Cloud Edition (multi-tenant SaaS, RBAC, billing) is a separate commercial offering.

See Editions for the full feature matrix and license details.

Next steps

Section titled “Next steps”

© Akyros Labs LLC. All rights reserved.

© 2026 Akyros Labs LLC. All rights reserved. · promptgate.dev · GitHub
PromptGate Community Edition is licensed under the Business Source License 1.1.