> For the complete documentation index, see [llms.txt](https://docs.flowiseai.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flowiseai.com/configuration/authorization/chatflow-level.md).
# Flows
***
After you have a chatflow / agentflow constructed, by default, your flow is available to public. Anyone that has access to the Chatflow ID is able to run prediction through Embed or API.
In cases where you might want to allow certain people to be able to access and interact with it, you can do so by assigning an API key for that specific chatflow.
## API Key
In dashboard, navigate to API Keys section, and you should be able to see a DefaultKey created. You can also add or delete any keys.
## Chatflow
Navigate to the chatflow, and now you can select the API Key you want to use to protect the chatflow.
After assigning an API key, one can only access the chatflow API when the Authorization header is provided with the correct API key specified during a HTTP call.
```json
"Authorization": "Bearer "
```
An example of calling the API using POSTMAN
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.flowiseai.com/configuration/authorization/chatflow-level.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.