Ensembl region API

Every Ensembl gene overlapping one chromosome span, with symbol, biotype and strand.

Ask your agent

“Call ensembl/region with region 17:43044295-43170245 and summarize what comes back.”

Works in any MCP client connected to https://data.openkrill.app/mcp. Install in one line.

Path: ensembl/region
MCP tool: call_endpoint
Credits: 1
Cache: 10 min

Parameters

regionstring, required	Chromosome span, such as 17:43044295-43170245, optionally prefixed with a species

Response

data.resources[] uses the same keys as every other platform: author, engagement, metadata, with Ensembl-only fields under extras. A failed upstream call is never billed.

More Ensembl tools

MCP tool call

{
  "name": "call_endpoint",
  "arguments": {
    "path": "ensembl/region",
    "params": {
      "region": "17:43044295-43170245"
    }
  }
}

curl

curl "https://data.openkrill.app/v1/ensembl/region?region=17%3A43044295-43170245" \
  -H "x-api-key: YOUR_API_KEY"

Response

{
  "success": true,
  "platform": "ensembl",
  "endpoint": "ensembl/region",
  "data": {
    "resources": [
      { "id": …, "title": …, "text": …, "url": …,
        "author": {…}, "engagement": {…},
        "metadata": {…}, "extras": {…} }
    ]
  },
  "credits_used": 1,
  "cached": false
}