> ## Documentation Index > Fetch the complete documentation index at: https://docs.teamfollowup.ai/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > Use the public API base URL: https://api.teamfollowup.ai/api. > Authenticate public API requests with Authorization: Bearer YOUR_API_KEY. > Use product-owned terms: agents, calls, campaigns, contacts, phone numbers, billing, and configuration. # More than a voice agent > Getting an agent to talk is the easy part. The campaign around it, the whole operation, is what we actually bring. Getting a voice agent to say hello is the easy part now. The models are good, the voices are good, and everyone has access to the same raw pieces. If a talking bot was all you wanted, you would not need us. The hard part is everything around the agent. That is what we have spent years getting right, and it is what we call a **campaign**. ## Anyone can make an agent talk A voice and a language model will hold a conversation. That much is close to a solved problem, and we use the best of it, same as anyone serious. Nobody wins on the raw agent alone anymore. Calls succeed or fail on everything the agent needs around it: * Who to call, and when, in whose local time. * How to open, what to say, and how to handle each turn. * What to do when someone books, asks for a callback, or opts out. * Which tags to set, which times to offer, and what happens after the call. Wiring all of that together, correctly, usually takes a team of careful developers. That is the work we took on so you don't have to. ## The campaign is what we bring A **campaign** is that whole operation around the agent, set up end to end. You describe your business, and the platform handles the nuanced parts for you: the calling window, the timezones, the tags, the bookings, the follow up, and the safety rails. You are not writing code. You are standing up a voice agent for your account, or for a hundred client accounts, without a dev team behind you. That is the part we are proud of, and it is where years of doing this for real businesses actually shows. ## The prompt behind the agent There is one piece you never see. Every agent runs on a system prompt we have built and rebuilt over years of real client calls. You don't write it, and you can't read it. It is the quiet layer that makes the agent sound like a person instead of a script, and keeps it steady when a call goes sideways. It is battle tested the only way that counts: on real calls, for real businesses, with real money on the line. ## A human in the loop, always We are not here to replace your team. We are here to give them their time back. The AI takes the work people can't get to, the after hours, the overflow, the fast first follow up, and it hands anything that needs a person straight back to a person. The goal is to augment your team, never to cut them out. **AI After Hours** is that belief running live. The AI covers the gaps around your team's working hours and stays out of their way during them, so your people stay in the loop and the AI just makes sure no lead slips through overnight. It is the clearest look at the kind of infrastructure we build around an agent, and an easy place to start. Let the AI cover the hours your team can't, and hand the rest back to them.