Fission · FaaS · Event-Driven

Serverless.
Powered by Firecracker-VMs.

Build scalable, event-driven applications without managing infrastructure. Deploy functions in Python, Node.js, Go, PHP, Ruby, and JVM — each isolated in its own Firecracker micro-VM.

$ get started view features →
7 Runtimes
CHF 0.20 Pro 1M Requests
∞ Scale to zero
~0.15s Warm Start
evrtng functions — bash 
# 1. Sign up in the portal:
#    Namespace + API key:
#    in your dashboard.

# 2. Create a function
$ curl $API_HOST/provisioning/v1\
  /namespaces/YOUR-NAMESPACE\
  /functions \
  -H "X-API-Key: $KEY" \
  -d '{"name": "hallo",
       "code": "def main():..."}'

# 3. Trigger — URL /hallo
$ curl $API_HOST/provisioning/v1\
  /namespaces/YOUR-NAMESPACE\
  /triggers \
  -d '{"name": "hallo-http",
       "function": "hallo",
       "url": "/hallo"}'

# 4. Invoke — your URL
$ curl YOUR-NAMESPACE\
  .fnc4.evrtng.cloud/hallo \
  -H "X-API-Key: $KEY"
API_HOST= https://fnc4.evrtng.cloud
Event-Driven
HTTP, Kafka, Cron
7 Runtimes
Python, Node, Go, PHP, Ruby, JVM, Binary
Subscription
From CHF 9.95/mo, incl. VAT
Tenant URLs
https://your-ns.fnc4.evrtng.cloud
Cron Triggers
Scheduled execution built in
Managed Redis
12 MB included in the Free plan
Architecture

How Serverless Works

Trigger Event

An HTTP request, Kafka message, or cron job fires a trigger.

Fission Runtime

Your function spins up in an isolated Firecracker micro-VM, executes, then scales back to zero.

Return Response

JSON, HTML, or any response returned directly. You pay only for execution time.

Polyglot

Write in Any Language

All Languages →
Python 3.x
Node.js LTS
Go stable
PHP 8.x
Ruby stable
JVM/Java JVM 21
Binary Custom Docker image
Isolation Firecracker micro-VM
Pricing

Simple Subscription Pricing

Full Pricing →
Billing Formula
Requests CHF 0.20 / 1M requests
Compute (GB·s) CHF 0.0000166667 / GB·s
Idle functions CHF 0.00
Total Bill Requests + GB·s
GB·s = (Requests × ms × MB) ÷ 1024
example bill calculation 
# Pro: 3M requests, 100ms, 512MB

Requests = 3'000'000  # Limit
Duration = 100ms      # per call
Memory   = 512MB     # plan limit

Request cost = 3 × CHF 0.20
             = CHF 0.60

# GB·s = 3M × 0.1s × (512÷1024)
GB·s = 150'000        # < 160'000

Compute = 150'000 × 0.0000166667
        = CHF 2.50

Total = CHF 0.60 + CHF 2.50
      = CHF 3.10 🎉

Start Building Today

Join the serverless revolution. Deploy your first function in under 5 minutes.

$ quick start → create account