# 祖源树TheYtree (theytree.com)

Shows an interactive Y-chromosome haplogroup tree and lets users look up SNP markers to place a male lineage on it.

- Atlas card: https://inite.ai/en/atlas/theytree.com
- Site: https://theytree.com
- For: Genetic genealogists and people tracing paternal ancestry through Y-DNA haplogroup trees
- Use 0/100 · alive 100/100

## Used for

- browse Y-DNA haplogroup trees by regional population
- look up SNP markers defining a haplogroup branch
- compare a Y-DNA result against published sample lineages

## Price

Not read yet.

## For developers

- MCP server: com.theytree/theytree (namespace; open on 2026-10-18, 9 tools)
- MCP server card: https://theytree.com/.well-known/mcp.json
- Read 2026-10-18

## MCP server, measured daily

Server: https://www.theytree.com/api/v1/agent/mcp, checked every day since 2026-10-19 (16 checks).

- Answered: 100% of daily checks
- Median first answer: 1355 ms
- Sign-in: none
- Context its tool definitions take: about 1053 tokens (9 tools)
- Tool definitions: B, 76/100
- Failing "params_described": 4 of 9 tools
- Failing "annotations": 9 of 9 tools
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-18

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