# Opencancer (opencancer.ai)

Answers cancer patients' questions and explains their medical reports, with answers reviewed by scientists and linked to clinical guidelines and trials.

- Atlas card: https://inite.ai/en/atlas/opencancer.ai
- Site: https://opencancer.ai
- For: Cancer patients and caregivers wanting sourced, expert-reviewed answers about their own cancer care.
- Categories: health
- Use 0/100 · alive 100/100

## Used for

- understand a cancer pathology or lab report
- prepare questions for a clinician visit
- explore clinical trials matching a diagnosis

## Price

Not read yet.

## For developers

- MCP server: ai.opencancer/opencancer (namespace; open on 2026-10-18, 5 tools)
- Read 2026-10-18

## MCP server, measured daily

Server: https://opencancer.ai/api/mcp, checked every day since 2026-10-19 (1 checks).

- Answered: measuring, 1 daily checks so far
- Median first answer: 190 ms
- Sign-in: none
- Context its tool definitions take: about 1287 tokens (5 tools)
- Tool definitions: A, 97/100
- Failing "params_described": 1 of 5 tools
- Warning "destructive_unmarked": send_feedback
- Warning "open_writes": send_feedback
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Training on your data: conditional (https://opencancer.ai/privacy)
- Read 2026-10-18

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Source: INITE Atlas, https://inite.ai/en/atlas/opencancer.ai. JSON: https://inite.ai/api/atlas/opencancer.ai. MCP: https://inite.ai/api/mcp (atlas_lookup).