cURL
curl -X POST https://f.devtool.uk/api/v1/transfers \
-H "Authorization: Bearer fc_your_key" \
-F "[email protected]"Built for developers
Move files between
people and agents
One REST API for scripts, automations, and AI agents to upload files and share the results.
A straightforward REST API- Built for scripts and AI agents
- Secure, stable, and fast
-
FilePDF · CSV · ZIP -
Feichuan APIREST API -
Share linkshare_url
f.devtool.uk/s/123456Pass the link to a person or agent to continue the workflow.
Quick start
Start in three steps
Make your first call in five minutes. Create an API key, then call the Feichuan API with a Bearer token.
- 01Upload a file
- 02Receive a link
- 03Use it anywhere
API Response201 Created
{
"share_url": "https://f.devtool.uk/s/123456",
"code": "123456"
}One link completes the handoff
From people to agents or between agents, Feichuan keeps file handoffs efficient.
Humanfile.pdf
AgentHuman → Agent
A person uploads a local file, receives a share link, and gives it to an AI agent for processing.
Agent
result.zipHumanAgent → Human
An agent uploads its completed work and returns the share link directly to the user.
Agent A
data.csv
Agent BAgent → Agent
Agents exchange material through a share link to build a complete automated workflow.
Do not put large files in an agent context.
Send a Feichuan link.
Large files consume context, affect model results, and add cost. A Feichuan link keeps each file in the right place for the right use.
Developer entry points
Choose the right entry for your workflow
Create an API key, integrate an AI agent, or explore the complete API reference to build your file delivery flow.
