Portfolio Optimizer API

⭐ Beginner's Pick Finance / No Auth Required Beginner HTTPS CORS
Free to Use Varies (check documentation)

Overview

Portfolio Optimizer is a free REST API that helps you analyze and optimize investment portfolios using advanced mathematical models. It offers endpoints for portfolio construction, risk analysis, and performance metrics — no API key required. Beginners can start with simple portfolio statistics before moving on to optimization algorithms.

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Beginner Tip

Start with the /portfolio/analysis/return endpoint to compute basic return metrics for a list of assets. The API expects asset weights and returns as JSON arrays, so make sure your inputs are properly formatted.

Available Data

Portfolio Optimizer data via REST API
JSON-formatted response data
Freely accessible without authentication

Example Response

JSON Response
{
  "status": "success",
  "data": {
    "result": "Data from Portfolio Optimizer",
    "description": "Portfolio analysis and optimization",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

portfoliosReturns Computed return value for each portfolio submitted in the request.
portfoliosVolatilities Annualized volatility (standard deviation) of each portfolio.
portfoliosSharpeRatios Sharpe ratio for each portfolio, measuring risk-adjusted return.
assetsWeights Optimized asset weight allocations when using optimization endpoints.
status API response status, typically "ok" on success.

Implementation Example

const url = "https://portfoliooptimizer.io/";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

400 Bad Request Malformed JSON body or mismatched array lengths for assets and weights.
Verify that assetsPrices and portfoliosWeights arrays have consistent dimensions matching the assets count.
422 Unprocessable Entity Portfolio weights do not sum to 1.0.
Ensure all weight arrays sum to exactly 1.0 (e.g., [0.4, 0.6]).
Empty response / timeout Very large datasets can exceed default timeout limits.
Reduce the number of assets or time periods per request, or increase your HTTP client timeout.

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 20/20
🔒 Security 15/15
🛠 Developer XP 20/20
✓ Reliability 7/15
Response Time 38ms

Fully tested on Apr 5, 2026

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS YES
Category Finance
Difficulty Beginner
Verified: 2026-04-04

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