ProteinsCPU1 credits

Sequence Alignment

Global pairwise alignment with Needleman-Wunsch

Perform global pairwise sequence alignment using the Needleman-Wunsch algorithm. Returns alignment score, identity percentage, and aligned sequences with gap annotations.

$0.01

per API call

credits per call

/v1/proteins/align

API endpoint

Features

Global pairwise alignment

Needleman-Wunsch algorithm

BLOSUM62 scoring matrix

Identity and similarity scores

Gap-annotated output

Sub-second response

Quick Start

Needleman-Wunsch — Python Examplepython

import requests

API_KEY = "sk-sci-your-key-here"
url = "https://scirouter.ai/v1/proteins/align"

response = requests.post(url, json={
    "sequence1": "MKFLILLFNILCLFPVLAAD",
    "sequence2": "MKFLVLLFNILCLFPVLAAD"
}, headers={"Authorization": f"Bearer {API_KEY}"})

result = response.json()
print(f"Identity: {result['identity']:.1f}%")
print(f"Score: {result['score']}")