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1inch

1inch is a leading DeFi aggregator providing best-execution swaps across decentralized exchanges, an intent-based Fusion order flow, cross-chain Fusion+ swaps, limit orders, and rich market data. The 1inch Developer Portal (business.1inch.com/portal) exposes 13+ REST APIs covering Swap, Orderbook, Spot Price, Token, Token Details, Charts, Balance, Portfolio, Transaction Gateway, History, Traces, Gas Price, Web3 RPC, NFT, and Domains across 14+ EVM and non-EVM chains, distributed under a single API key.

15 APIs 0 Features
DeFiDEX AggregatorSwapLimit OrdersFusionWeb3RPCMarket Data

1inch publishes 15 APIs on the APIs.io network. Tagged areas include DeFi, DEX Aggregator, Swap, Limit Orders, and Fusion.

1inch’s developer surface includes developer portal, documentation, GitHub presence, engineering blog, and 2 more developer resources.

APIs

1inch Swap API

Returns optimal swap routes and ready-to-sign transaction calldata across aggregated DEX liquidity. Supports Classic Swap, intent-based Fusion, and cross-chain Fusion+ flows.

1inch Orderbook API

Limit Order Protocol orderbook — create, query, fill, and cancel signed limit orders across supported EVM chains.

1inch Spot Price API

Real-time USD and reference spot prices for tokens across supported networks, sourced from on-chain liquidity.

1inch Token API

Token metadata, lists, search, and verification across all 1inch-supported networks.

1inch Token Details API

Enriched token details including market metrics, price history, and trading stats for individual tokens.

1inch Charts API

Historical OHLCV chart data for tokens and trading pairs across supported networks.

1inch Balance API

Token balance lookups and allowance checks for any wallet across supported chains, returning balances in a unified JSON schema.

1inch Portfolio API

Cross-chain portfolio aggregation — wallet positions, protocol exposures, profit and loss, fees, and value over time.

1inch Transaction Gateway API

Submission gateway that broadcasts signed transactions and tracks status across supported EVM chains.

1inch History API

Unified wallet transaction history across all supported chains, decoded into protocol-aware events (swaps, transfers, approvals, liquidity actions).

1inch Traces API

Detailed transaction trace data for debugging and analytics across supported EVM chains.

1inch Gas Price API

Current gas-price recommendations (low / medium / high / instant) for supported EVM chains, accounting for EIP-1559 base and priority fees.

1inch Web3 RPC API

Hosted JSON-RPC endpoints for 14+ EVM and non-EVM networks, exposed through the 1inch API key for unified rate limiting and access control.

1inch NFT API

Wallet NFT holdings, collection metadata, and floor prices across supported chains.

1inch Domains API

Reverse and forward resolution for Web3 naming systems (ENS, Unstoppable Domains, and other supported registries).

Resources

🔗
Website
Website
🌐
Portal
Portal
🔗
Documentation
Documentation
👥
GitHub
GitHub
🔗
Twitter
Twitter
📰
Blog
Blog

Sources

apis.yml Raw ↑ 
aid: 1inch
url: https://raw.githubusercontent.com/api-evangelist/1inch/refs/heads/main/apis.yml
name: 1inch
kind: company
description: >-
  1inch is a leading DeFi aggregator providing best-execution swaps across decentralized
  exchanges, an intent-based Fusion order flow, cross-chain Fusion+ swaps, limit orders,
  and rich market data. The 1inch Developer Portal (business.1inch.com/portal) exposes
  13+ REST APIs covering Swap, Orderbook, Spot Price, Token, Token Details, Charts,
  Balance, Portfolio, Transaction Gateway, History, Traces, Gas Price, Web3 RPC, NFT,
  and Domains across 14+ EVM and non-EVM chains, distributed under a single API key.
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - DeFi
  - DEX Aggregator
  - Swap
  - Limit Orders
  - Fusion
  - Web3
  - RPC
  - Market Data
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.19'
apis:
  - aid: 1inch:swap-api
    name: 1inch Swap API
    description: >-
      Returns optimal swap routes and ready-to-sign transaction calldata across
      aggregated DEX liquidity. Supports Classic Swap, intent-based Fusion, and
      cross-chain Fusion+ flows.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/swap
    tags:
      - Swap
      - Aggregation
      - Fusion
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:orderbook-api
    name: 1inch Orderbook API
    description: >-
      Limit Order Protocol orderbook — create, query, fill, and cancel signed limit
      orders across supported EVM chains.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/orderbook
    tags:
      - Limit Orders
      - Orderbook
      - Trading
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:price-api
    name: 1inch Spot Price API
    description: >-
      Real-time USD and reference spot prices for tokens across supported networks,
      sourced from on-chain liquidity.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/price
    tags:
      - Price
      - Market Data
      - Spot
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:token-api
    name: 1inch Token API
    description: >-
      Token metadata, lists, search, and verification across all 1inch-supported
      networks.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/token
    tags:
      - Token
      - Metadata
      - Lists
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:token-details-api
    name: 1inch Token Details API
    description: >-
      Enriched token details including market metrics, price history, and trading
      stats for individual tokens.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/token-details
    tags:
      - Token
      - Details
      - Analytics
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:charts-api
    name: 1inch Charts API
    description: >-
      Historical OHLCV chart data for tokens and trading pairs across supported
      networks.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/charts
    tags:
      - Charts
      - OHLCV
      - History
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:balance-api
    name: 1inch Balance API
    description: >-
      Token balance lookups and allowance checks for any wallet across supported
      chains, returning balances in a unified JSON schema.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/balance
    tags:
      - Balance
      - Wallet
      - Allowance
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:portfolio-api
    name: 1inch Portfolio API
    description: >-
      Cross-chain portfolio aggregation — wallet positions, protocol exposures,
      profit and loss, fees, and value over time.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/portfolio
    tags:
      - Portfolio
      - PnL
      - Positions
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:transaction-gateway-api
    name: 1inch Transaction Gateway API
    description: >-
      Submission gateway that broadcasts signed transactions and tracks status across
      supported EVM chains.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/tx-gateway
    tags:
      - Transactions
      - Broadcast
      - Tracking
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:history-api
    name: 1inch History API
    description: >-
      Unified wallet transaction history across all supported chains, decoded into
      protocol-aware events (swaps, transfers, approvals, liquidity actions).
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/history
    tags:
      - History
      - Transactions
      - Wallet
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:traces-api
    name: 1inch Traces API
    description: >-
      Detailed transaction trace data for debugging and analytics across supported
      EVM chains.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/traces
    tags:
      - Traces
      - Debugging
      - Analytics
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:gas-price-api
    name: 1inch Gas Price API
    description: >-
      Current gas-price recommendations (low / medium / high / instant) for supported
      EVM chains, accounting for EIP-1559 base and priority fees.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/gas-price
    tags:
      - Gas
      - Fees
      - EVM
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:web3-rpc-api
    name: 1inch Web3 RPC API
    description: >-
      Hosted JSON-RPC endpoints for 14+ EVM and non-EVM networks, exposed through the
      1inch API key for unified rate limiting and access control.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/web3
    tags:
      - RPC
      - JSON-RPC
      - Web3
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:nft-api
    name: 1inch NFT API
    description: >-
      Wallet NFT holdings, collection metadata, and floor prices across supported
      chains.
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/nft
    tags:
      - NFT
      - Collections
      - Metadata
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
  - aid: 1inch:domains-api
    name: 1inch Domains API
    description: >-
      Reverse and forward resolution for Web3 naming systems (ENS, Unstoppable
      Domains, and other supported registries).
    humanURL: https://business.1inch.com/portal/documentation
    baseURL: https://api.1inch.dev/domains
    tags:
      - Domains
      - ENS
      - Resolution
    properties:
      - type: Documentation
        url: https://business.1inch.com/portal/documentation
common:
  - type: Website
    url: https://1inch.io
  - type: Portal
    url: https://portal.1inch.dev
  - type: Documentation
    url: https://business.1inch.com/portal/documentation
  - type: GitHub
    url: https://github.com/1inch
  - type: Twitter
    url: https://x.com/1inch
  - type: Blog
    url: https://blog.1inch.io
integrations:
  - name: Ethereum
  - name: Base
  - name: Arbitrum
  - name: Optimism
  - name: Polygon
  - name: BNB Chain
  - name: Avalanche
  - name: Solana
  - name: zkSync Era
maintainers:
  - FN: Kin Lane
    email: [email protected]