sentinel-sim

Sentinel (SIM) is an AI agent integration and marketplace service that sits between an agent and external services. It presents a unified API for agent tool calls and describes itself as a governed execution and orchestration layer for AI agents. The service says it handles authentication, policy enforcement, budget controls, orchestration, and observability while remaining invisible to the agent.

Its documented features include JWT and agent API key authentication, AES-256 credential encryption, brute-force protection, token rotation, and role-based access control. Sentinel also applies per-agent spend limits and alerts, tool and provider restrictions, rate limiting per user or agent, and real-time budget enforcement. For provider routing, it uses one API key to route requests to providers including OpenAI, Anthropic, Gemini, Perplexity, Mistral, Cohere, GitHub, Vercel, Railway, Stripe, Resend, and Replicate. The page also states that it provides cost estimation before execution and a full audit trail on every call.

Chain orchestration is part of the product as well. Sentinel supports agent-on-agent execution through sentinel.run(), sequential step chains with output piping, automatic retry and provider failover per step, and budget enforcement that halts chains before overspend. The marketplace section shows preintegrated tools and providers for tasks such as chat, embeddings, image generation, moderation, code generation, deployment, payments, email delivery, and model inference. The page also says there are 21 providers, 234 tools, and 1 SDK.

Sentinel is delivered as an SDK available from PyPI or npm, and the setup flow includes signing up on the dashboard, verifying an email, and generating a Sentinel API key. The service says provider credentials are passed per request and are not stored. It is described as free to use. The page includes Docs, Login, Marketplace, and Playground links, but names no company behind the product.