Try BioNexio

Speed up
your bioengineering

Pick your way in: the app in your browser, the REST API in your code, or the MCP server in the AI tools you already use.

Try for free →

Free plan · 50 tokens / day · no card required

No code

The BioNexio app

Design oligos and constructs in your browser. Results you can check, export and share.

Try free →

For developers

The BioNexio API

Typed JSON for every design. Build oligo and construct design straight into your pipeline.

POST /api/v1/oligos/design
{ "target": "pUC19", "limit": 20 }
{ "data": [[
  { "id": "OL-0042",
    "seq": "ATGCGCTAGCTTCGGA",
    "tm": 61.4
  }] }
Get an API key →

For AI tools

BioNexio MCP

One remote server, one sign-in. Claude, ChatGPT, Claude Code and Codex design with BioNexio.

{
  "mcpServers": {
    "bionexio": {
      "type": "http",
      "url": "https://app.nexio.bio/mcp"
    }
  }
}
Set up in two minutes →

Not sure which one?

Free · 50 tokens / day · oligo limit 20

Standard · 5 EUR / month · 10,000 tokens / day

Enterprise · custom limits

See pricing