Tabular Prediction API
Tabular predictions, one API call away
TabH2O is a foundation model for tabular data. Send a CSV, get predictions back. No model training, no infrastructure, no data stored.
How it works
Three steps to predictions
Sign in
Sign in with LinkedIn or Google and grab an API key.
Send data
Send a CSV to the API. Data is processed in memory, never stored.
Get predictions
Get predictions or forecasts back — classification, regression, and timeseries.
Quick start
Start making predictions
curl -X POST https://tabh2o.h2oai.com/api/v1/predict \
-H "Authorization: Bearer tabh2o_live_..." \
-H "Content-Type: application/json" \
-d '{
"train": {
"data": [
[25, 50000, 1, "Yes"],
[30, 60000, 3, "No"],
[22, 45000, 0, "Yes"],
[35, 70000, 8, "No"]
],
"columns": ["age", "income", "experience", "purchased"]
},
"test": {
"data": [[28, 55000, 2], [38, 75000, 7]],
"columns": ["age", "income", "experience"]
},
"target_column": "purchased",
"task": "classification"
}'Privacy
Your data stays yours
We don't store your data or use your data for training. Every request is processed in memory and discarded after the response is returned.
Zero retention
Data is processed in memory only. Nothing is written to disk or stored after the response.
Easy to anonymize
Rename columns to c1, c2, etc. Map categories to integers. The model only cares about patterns, not labels.
No performance loss
TabH2O learns from structure, not semantics. Anonymized data produces identical predictions.
Use without limits
Predictions are yours. Commercial use, automated pipelines, and integration into your products are all permitted.
Plugins
Bring TabH2O to your data
Use TabH2O directly from Excel or Google Sheets — just install and predict.
AI Agents
Give your agent tabular superpowers
Let your AI agent call TabH2O whenever it encounters structured data. No model training, no feature engineering — just one API call to classify, predict, or forecast.
Zero setup
Drop in a skill file or add a tool definition. Your agent discovers TabH2O automatically.
Works with any framework
OpenAI function tools, LangChain, pi skills, Claude Code — anything that can call an API.
Fully autonomous
The agent picks the task type, formats the data, calls the API, and interprets the results.
Pricing
Free to try
Every account gets free API access to evaluate TabH2O.
| Rate limit | 2 requests/min |
| Tasks | Classification, Regression |
| Daily quota | 20 requests/day |
| Monthly quota | 500 requests/month |
| Max rows per request | 100,000 |
| Max columns | 100 |