Navige

Navige is a cost-control layer that sits between AI agents and everything they pay for, such as models and tool calls. The site says every run gets cheaper and faster with the same result. It does this in four ways: caching and reusing verified answers, trimming context and capping tool payloads, guarding against loops and repeated failures, and routing each task to a model chosen by complexity. Tool calls are checked against the buyer’s rules before they run, and spend is priced live to the millionth of a dollar.

Setup takes less than two minutes and one line of configuration, by pointing an existing SDK’s base URL at Navige. The site says prompts, agent workflows and tool schemas stay as they are, and that frameworks, keys and providers are unchanged. Named frameworks include LangChain, LangGraph, OpenAI Agents and Agentforce, and named model sources include Anthropic, AWS Bedrock and Meta Llama. A weekly Watchtower report shows what agents cost and what could be saved, and a sufficiency calculator estimates the overspend.

Pricing starts free. Watchtower is free forever, allows unlimited agents and only watches, so the agents run exactly as they do today. When Navige is switched on, the buyer pays either a flat $9 in quiet months, when savings are under $45, or $1 of every $5 saved, which is 20% of savings, whichever is bigger. The site lists no seats, no per-agent fees, no setup fee and cancel any time. An Enterprise option is available for whole organisations.

Before buying, note that prices are published in US dollars and the $9 minimum applies once Navige is switched on, which the site explains by the real infrastructure that traffic runs through. The site says Navige checks results by leaving a slice of jobs untouched and comparing the two. Production infrastructure is operated by Railway Corp, a company incorporated in the United States, and the DPA is governed by the laws of England and Wales. Cancelling returns the account to free Watchtower.