BioHarbor vs Ensembl
A side-by-side look at the BioHarbor and Ensembl MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose BioHarbor for biology & bioinformatics work as a local process; choose Ensembl for biology & bioinformatics as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose BioHarbor when
- You need dedicated capabilities in the Biology & Bioinformatics domain.
- You prefer a local stdio subprocess transport.
Choose Ensembl when
- You need dedicated capabilities in the Biology & Bioinformatics domain.
- You prefer a local stdio subprocess transport.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Biology & Bioinformatics | Biology & Bioinformatics |
| Quality signal | 36/100 · Fair | 41/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing |
Tools & capabilities
BioHarbor tools
No tool names declared yet. Check the project README from the listing page.
Ensembl tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
BioHarbor
{
"mcpServers": {
"bioharbor": {
"command": "uvx",
"args": [
"bioharbor"
]
}
}
}
Ensembl
{
"mcpServers": {
"ensembl": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-ensembl"
]
}
}
}
Frequently asked questions
BioHarbor is categorized under Biology & Bioinformatics and uses a local stdio subprocess. Ensembl belongs to Biology & Bioinformatics and uses a local stdio subprocess. Pick BioHarbor for biology & bioinformatics work and Ensembl for biology & bioinformatics.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
BioHarbor has no declared pricing — check the project's own site. Ensembl has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add bioharbor and ensembl as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, BioHarbor has a quality signal of 36/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. Ensembl has 41/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.