Elysia Tools Docs
EN
Language
ZHESPTRUFRDEEN
Back to site
Browse tools

Education

Ligation Insert:Vector Molar Ratio Calculator

NEB-style ligation setup: solve mode computes insert_ng = ratio × vector_ng × (insert bp/vector bp); check mode reports the actual pmol ratio. Recommended bands by insert size (5–10:1 under 200 bp, 3–5:1 to 1 kb, 1–5:1 above), concatemer warning above 10:1, and nM concentrations from the reaction volume. NEB / Promega / Sambrook derived. Educational use only.

json· JSON resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL
curl -X POST 'https://api.elysiatools.com/en/api/tools/ligation-molar-ratio' \
  -H 'Content-Type: application/json' \
  -d '{"mode":"solveInsert","vectorSizeBp":3000,"vectorMassNg":100,"insertSizeBp":1000,"insertMassNg":50,"ratio":3,"reactionVolumeUl":20,"decimalPlaces":3}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP
POST https://api.elysiatools.com/en/api/tools/ligation-molar-ratio

Parameters

NameTypeRequiredDescription
modeselectYesSolve for the insert mass a desired ratio needs, or check the actual ratio of two masses.
vectorSizeBpnumberYesDouble-digested vector backbone length in base pairs.
vectorMassNgnumberYesMass of the linearized vector in the reaction.
insertSizeBpnumberYesInsert fragment length in base pairs.
insertMassNgnumberYes

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json
{
  "mcpServers": {
    "elysiatools-ligation-molar-ratio": {
      "name": "ligation-molar-ratio",
      "description": "NEB-style ligation setup: solve mode computes insert_ng = ratio × vector_ng × (insert bp/vector bp); check mode reports the actual pmol ratio. Recommended bands by insert size (5–10:1 under 200 bp, 3–5:1 to 1 kb, 1–5:1 above), concatemer warning above 10:1, and nM concentrations from the reaction volume. NEB / Promega / Sambrook derived. Educational use only.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=ligation-molar-ratio",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call
{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "ligation-molar-ratio",
    "arguments": {
  "mode": "solveInsert",
  "vectorSizeBp": 3000,
  "vectorMassNg": 100,
  "insertSizeBp": 1000,
  "insertMassNg": 50,
  "ratio": 3,
  "reactionVolumeUl": 20,
  "decimalPlaces": 3
}
  }
}
Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).
Browse toolsOpen tool

© 2026 Elysia Tools. Developer documentation.

Back to siteBrowse tools
Insert mass (check mode); ignored in solve mode, which computes the required value.
rationumberYesMolar insert:vector ratio (solve mode), e.g. 3 for a 3:1 setup.
reactionVolumeUlnumberNoTotal ligation volume in µL; enter 0 to skip nM concentrations.
decimalPlacesnumberNo—

Response format

JSON result

JSON
{
  "key": {...},
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}

Questions or issues? Contact [email protected]