1inch Portfolio API: Comprehensive Guide to Integration and Usage

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The 1inch Portfolio API empowers developers and investors to efficiently manage, track, and analyze their Web3 assets across multiple blockchain networks. Built with scalability and privacy in mind, this RESTful API delivers real-time insights into token valuations, profit and loss metrics, and detailed DeFi position analytics. Whether you're building a financial dashboard or optimizing personal crypto investments, the 1inch Portfolio API offers a robust foundation for seamless blockchain data integration.

What Is the 1inch Portfolio Service API?

The 1inch Portfolio Service API is a developer-focused interface that enables programmatic access to comprehensive portfolio analytics across major blockchain networks. Using standard HTTP requests over RESTful endpoints, applications can retrieve real-time data on wallet balances, asset performance, and investment returns. This automation streamlines workflows for both individual users and institutional platforms seeking accurate, up-to-date insights into multi-chain crypto holdings.

Designed for ease of use and high reliability, the API supports integration into custom dashboards, trading bots, analytics tools, and more. By leveraging this service, developers eliminate the need for manual tracking across disparate networks, reducing complexity while increasing accuracy in asset management.

👉 Discover how to unlock real-time portfolio insights with seamless API integration.

Key Features of the 1inch Portfolio API

The 1inch Portfolio API stands out due to its powerful feature set tailored for modern Web3 financial management:

Multi-Wallet Support

Users can monitor multiple wallets simultaneously, aggregating balances and performance metrics into a single, unified view. This eliminates the hassle of switching between addresses and provides a holistic overview of total crypto exposure.

Cross-Chain Asset Tracking

Support spans major blockchains including Ethereum, BNB Chain, Polygon, and others. The API allows filtering by specific chains or viewing consolidated performance across all connected networks—ideal for users with diversified multi-chain portfolios.

Deep Liquidity Position Analysis

Gain detailed insights into liquidity provider (LP) positions across leading DeFi protocols such as Uniswap V3, Aave, and Lido. Understand impermanent loss, rewards accruals, and overall yield performance—all from a single endpoint.

These capabilities make the 1inch Portfolio API an essential tool for anyone serious about data-driven decision-making in decentralized finance.

Core Advantages for Developers and Investors

Why choose the 1inch Portfolio API over alternative solutions? Several key advantages set it apart:

With these benefits, the API serves both retail investors looking to optimize returns and development teams building next-generation financial tools.

Practical Use Cases for the Portfolio API

DeFi Investment Management

Automate tracking of staking rewards, liquidity mining yields, and token swaps across various protocols. Analyze PnL trends over time to refine investment strategies and maximize returns.

Multi-Chain Asset Oversight

For users active on several blockchains, manually aggregating portfolio value is time-consuming. The API automates this process, delivering real-time net worth summaries across chains.

Secure & Private Portfolio Monitoring

Since all data remains under user control without third-party access, it's ideal for privacy-conscious investors who want transparency without sacrificing security.

👉 See how integrating advanced portfolio analytics can transform your financial toolkit.

Getting Started: Quick Integration Guide

This step-by-step tutorial demonstrates how to use the 1inch Portfolio API (v4) to fetch key metrics like current token value, profit and loss (PnL), return on investment (ROI), and detailed token statistics.

Key Endpoints Used:

Step 1: Initialize Project and Install Dependencies

npm init -y
npm install dotenv

Step 2: Create .env File

API_KEY=PASTE_YOUR_API_KEY_HERE
WALLET_ADDRESS=PASTE_YOUR_WALLET_ADDRESS_HERE
CHAIN_ID=1  # Using Ethereum mainnet as example

Step 3: Implement Helper Functions

require("dotenv").config();
const delay = (ms) => new Promise(resolve => setTimeout(resolve, ms));

async function getCurrentValue(walletAddress, chainId) {
  const endpoint = `https://api.1inch.dev/portfolio/portfolio/v4/overview/erc20/current_value?addresses=${walletAddress}&chain_id=${chainId}`;
  const response = await fetch(endpoint, {
    headers: { Authorization: `Bearer ${process.env.API_KEY}` }
  });
  return response.json();
}

Repeat similar patterns for getProfitAndLoss and getTokenDetails, adjusting parameters accordingly.

Step 4: Execute Main Logic

async function main() {
  console.log("Current Value:", await getCurrentValue(process.env.WALLET_ADDRESS, process.env.CHAIN_ID));
  await delay(2000);
  
  console.log("Profit and Loss:", await getProfitAndLoss(
    process.env.WALLET_ADDRESS,
    process.env.CHAIN_ID,
    "2025-01-01T00:00:00Z",
    "2025-01-31T23:59:59Z"
  ));
  await delay(2000);
  
  console.log("Token Details:", await getTokenDetails(process.env.WALLET_ADDRESS, process.env.CHAIN_ID));
}
main();

Run with node index.js. Ensure delays are maintained to comply with rate limits on free tiers.

Frequently Asked Questions (FAQ)

Q: Can I specify which functions to use via the 1inch API?
A: Currently, direct function selection isn’t supported. However, you can use compatibility mode parameters to force certain behaviors, though this may impact gas efficiency.

Q: Does the API return routing path comparisons like those seen on app.1inch.io?
A: No. Path comparison data isn’t included in API responses. You’ll need to source this information separately if required for your application.

Q: Is there an example of using the 1inch Router in a smart contract?
A: Yes, code examples are available through official documentation. For further assistance, support is accessible via live chat.

Q: Can I use the 1inch Router without the API?
A: Technically yes—functions like unoswap or uniswapV3Swap can be called directly—but doing so requires complex bit masking and encoding. More importantly, you lose access to aggregation logic that ensures optimal pricing. Using the API is strongly recommended.

Q: How are rate limits determined?
A: Rate limits vary based on your DevPortal subscription tier. Higher tiers offer increased request quotas and priority access.

Q: What does the value field represent in transactions?
A: It indicates the amount of ETH sent to the 1inch Router. When swapping tokens (not ETH), this should be set to 0. For ETH trades, it reflects the actual ETH amount being exchanged.

👉 Start building smarter crypto tools with powerful portfolio data today.

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