Best Alternatives to OneCLI

Unkey

Auth· unkey.com

Freemium

Developer platform for shipping APIs with API key issuance, verification, rate limiting, and usage analytics behind a global gateway.

Open Connector

Auth· oomol.com

Open source

Open-source authentication gateway connecting AI agents to SaaS providers through SDK, CLI, MCP, HTTP, and OpenAPI interfaces.

Brain0

Auth· github.com

Open source

Local-first provenance and decision graph for AI-written code, linking commits to agent prompts with drift, DLP, memory, and signed attestations.

Tandem

Auth· tandem.ac

Freemium

Runtime authority layer for AI agents that scopes tools, data, memory, approvals, tenant boundaries, and auditable actions across MCP workflows.

ActionRail

Auth· actionrail.ai

Open source

Open-source runtime action-grounding framework that verifies proposed agent actions against live systems before execution.

AI Security Gateway

Auth· aisecuritygateway.ai

Open source

Self-hosted AI and MCP security gateway for prompt-injection blocking, PII redaction, DLP policy, and multi-provider routing.

Stytch Remote MCP Servers

Auth· stytch.com

Freemium

Stytch Connected Apps pattern and example code for building authenticated remote MCP servers with OAuth-style authorization, user identity, and scoped access control.