What's free
Free plan: the Marengo Embed API for all input types (video, audio, image, text) at no cost, plus ~600 min indexing
Rate limits
Embed video/audio: 3,000 RPD, 25 RPM; embed text/image: 3,000 RPD, 600 RPM
The catch
No credit card for the Free plan, but indexed data expires after 90 days unless upgraded. Marengo produces multimodal embeddings. Not OpenAI-compatible.
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 multimodal LLM APIsNo credit cardEmbeddings / RAGSpeech (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.
- 2026-07-30 Added to the hub