Exploring the MAMMAL ClinTox Toxicity API: A Key Endpoint in the Free Cure Cancer With AI API
October 11, 2026

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In the world of drug discovery and oncology research, predicting the toxicity of compounds is crucial. The MAMMAL ClinTox toxicity API is a powerful tool that allows developers and researchers to assess the potential toxicity of chemical compounds early in the drug development process. This endpoint is part of the free Cure Cancer With AI API, which provides access to a wealth of oncology data and predictive modeling tools.
Why This Endpoint Matters
Toxicity is a leading cause of failure in clinical trials, often resulting in the loss of time and resources. By providing early toxicity signals, the MAMMAL ClinTox API helps research teams identify and deprioritize risky compounds before they enter costly trials. This predictive capability is vital for streamlining the drug development process and enhancing the overall efficiency of cancer research. With the ability to flag potentially toxic candidates, teams can focus their efforts on safer options, maximizing the chances of successful outcomes.
How to Use the MAMMAL ClinTox Toxicity API
The MAMMAL ClinTox toxicity API employs the POST method, and the endpoint can be accessed at the following path:
POST https://curecancerwithai.com/api/v1/mammal/clintox
To make a request to this endpoint, you will need to provide a JSON body that includes the smiles parameter, which represents the structure of the compound in SMILES notation. The API will return a response containing two fields:
- pred: A binary prediction where 1 indicates that the compound is likely to be toxic (and may fail trials), and 0 indicates that it is not toxic.
- score: The raw positive-class score, representing the likelihood of toxicity.
Here’s a code example using curl to demonstrate how to use this API:
curl -X POST https://curecancerwithai.com/api/v1/mammal/clintox \
-H "Authorization: Bearer ccw_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"smiles": "CC(=O)OC1=CC=CC=C1C(=C)C(=O)O"}'
In this example, replace YOUR_KEY with your actual API key. This request sends a compound's SMILES notation to the API for toxicity prediction.
What You Can Build with the MAMMAL ClinTox Endpoint
The MAMMAL ClinTox toxicity API opens up a world of possibilities for developers and researchers in oncology. Here are some concrete use cases:
- Flag Risky Candidates: Before conducting clinical trials, teams can use this API to identify compounds with a high likelihood of toxicity, enabling them to focus on safer alternatives.
- Filter Generated Molecules: For researchers generating new chemical entities, the API can help filter out potentially toxic candidates from a set of generated molecules.
- Add Safety Scores to Dashboards: Integrate the toxicity predictions into screening dashboards to provide a visual representation of the safety profile of compounds being considered for trials.
- Enhance Compound Libraries: Use the API to enrich compound libraries with safety scores, allowing for better-informed decision-making during the drug discovery process.
Get Started for Free
The MAMMAL ClinTox toxicity API is available for free, making it accessible for anyone interested in cancer research and drug development. You can create a free API key at /api-keys. To dive deeper into the documentation, including parameters and code samples, visit /developers. The free tier allows up to 100 requests per hour per key, providing ample opportunity to explore and experiment with this valuable endpoint.
Conclusion
The MAMMAL ClinTox toxicity API is a vital resource for anyone involved in drug discovery and cancer research. By providing early insights into the toxicity of compounds, this endpoint helps teams make informed decisions and optimize their research efforts. Remember, while the data and model predictions offered by this API can be instrumental in your research, they are not intended as medical advice, nor do they guarantee outcomes. Always consult with qualified professionals for medical concerns.
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