JJustLog3 Cloud
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Quick start

Send your first log line to JustLog3 Cloud in about two minutes, from Python, Go or plain HTTP.

JustLog3 Cloud is a hosted log service. Your program sends plain-text log lines over HTTPS with an API token; you read them in the dashboard, get a Telegram message when a session grows past a threshold, and ask an AI assistant about them. The Free plan takes 5,000 lines a day and needs no card.

1. Get an API token

Sign up with Google or GitHub. The token is in the API token panel on your dashboard. Anyone with the token can write to your workspace, so keep it out of public repositories; you can rotate it from the same panel.

2. Install a library

Official libraries batch lines, retry on network errors and keep writing a local log file, so a cloud outage never loses data:

pip install justlog3                      # Python 3.8+
go get github.com/OAzizjon/justlog3/go    # Go 1.23+, standard library only

Any other language can use the HTTP API directly.

3. Write your first log

Python:

from justlog3 import Logger, set_api_token

set_api_token('YOUR_API_TOKEN', url='https://jl3-cloud.site/api/logs/')

logger = Logger('app.log')
logger.log('Hello from Python!', green=True)

Go:

package main

import (
    "log"

    justlog3 "github.com/OAzizjon/justlog3/go"
)

func main() {
    err := justlog3.SetAPIToken("YOUR_API_TOKEN",
        justlog3.WithURL("https://jl3-cloud.site/api/logs/"))
    if err != nil {
        log.Fatal(err)
    }
    defer justlog3.Shutdown()

    logger, err := justlog3.NewLogger("app.log")
    if err != nil {
        log.Fatal(err)
    }
    logger.Log("Hello from Go!", justlog3.Green())
}

curl:

curl -X POST "https://jl3-cloud.site/api/logs/" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Content-Type: text/plain" \
  -H "X-JustLog-Logger: manual" \
  --data "Hello from HTTP!"

4. Check your logs

Lines are sent in batches: every 75 lines, every 5 seconds and when the program exits. Open Logs in the dashboard: each run of your program is a session, and long sessions open on their own page.

Next steps