What's free
50,000 characters/month TTS (hard cap) + 60 min/month voice agents
Rate limits
3 concurrent calls; hard cap pauses at the limit (no overages)
The catch
Commercial use is allowed on the free tier. No credit card required. Hard monthly cap that pauses at the limit.
Quickstart
First-party API — not OpenAI-compatible, so there is no drop-in base URL. The exact endpoint is in the official docs; authenticate with your API key in the Authorization: Bearer header.
curl -H "Authorization: Bearer $API_KEY" \
https://<api-base-url>/<endpoint>…or in Python:
import os, requests
r = requests.post(
"https:///",
headers={"Authorization": f"Bearer {os.environ['API_KEY']}"},
json={},
)
print(r.json()) Appears in
Free LLM APIs with no credit cardFree LLM APIs with no phone verificationFree LLM APIs for commercial useFree multimodal LLM APIsNo credit cardNo card, no phoneSpeech (STT/TTS)
Change history
How this free tier has changed since we started tracking it (2026-07-30) — generated from the git history of providers.json.
- 2026-08-14 Updated OpenAI compatibility
- 2026-07-30 Added to the hub