2s

2s Crypto API

The crypto API from 2s — 46 operation(s) for crypto.

GitHub OpenAPI

Operations 46

GET /api/crypto/address-history Transaction history for an Ethereum address (via Etherscan V2) #
GET /api/crypto/address-safety Malicious-wallet screen (via GoPlus, free/keyless) #
GET /api/crypto/address-screen Sanctions-screen a crypto wallet address against the US #
GET /api/crypto/address-validate Validate a cryptocurrency address with full checksum #
GET /api/crypto/balances Live native + ERC-20 token balances for an EVM address #
GET /api/crypto/btc-address Bitcoin address summary (free/keyless): confirmed balance #
GET /api/crypto/btc-fees Current Bitcoin network fee rates and mempool backlog from #
GET /api/crypto/btc-mempool Bitcoin mempool state (free/keyless): current unconfirmed #
GET /api/crypto/btc-tx Bitcoin transaction lookup by txid (free/keyless) #
GET /api/crypto/btc-utxos Unspent transaction outputs (UTXOs) for a Bitcoin address #
GET /api/crypto/cex-klines Centralized-exchange OHLCV candlesticks for a spot trading #
GET /api/crypto/cex-ticker Centralized-exchange 24h ticker for a spot pair (e.g #
GET /api/crypto/chain-tvl-history Historical total DeFi TVL time series for a blockchain (e.g #
GET /api/crypto/coin Full coin profile by CoinGecko id (e.g #
GET /api/crypto/coin-history Historical market chart for a coin by CoinGecko id #
GET /api/crypto/contract Decode an EVM smart contract #
POST /api/crypto/decode-calldata Decode raw EVM transaction calldata #
GET /api/crypto/defi DeFi total-value-locked (TVL) metrics via DefiLlama #
GET /api/crypto/defi-chains DeFi TVL leaderboard across all chains (via DefiLlama #
GET /api/crypto/defi-fees Protocol fees/revenue or DEX trading volume leaderboards #
GET /api/crypto/defi-protocol-history Historical total-value-locked (TVL) time series for a DeFi #
GET /api/crypto/defi-yields DeFi yield & lending rates across protocols (via DefiLlama #
GET /api/crypto/dex-networks List the 100+ blockchain networks supported by the on-chain #
GET /api/crypto/dex-ohlcv OHLCV candlesticks for a DEX pool (via GeckoTerminal #
GET /api/crypto/dex-pools Trending or newly-created DEX liquidity pools on a network #
GET /api/crypto/dex-token-pools All DEX pools trading a given token, by contract address #
GET /api/crypto/ens-resolve Resolve ENS (Ethereum Name Service) names and addresses #
GET /api/crypto/fear-greed The Crypto Fear & Greed Index - a 0-100 market-sentiment #
GET /api/crypto/gas-oracle Live EVM gas oracle. Returns latest block baseFeePerGas + #
GET /api/crypto/global Whole-crypto-market overview: total market cap (USD), total #
GET /api/crypto/hyperliquid-funding Live perp funding rates, open interest, and mark/oracle/mid #
GET /api/crypto/hyperliquid-predicted-funding Predicted next funding rates per coin across venues #
GET /api/crypto/kimchi-premium The "kimchi premium" - how much higher a crypto asset #
GET /api/crypto/markets Top cryptocurrencies by market cap with live price, market #
GET /api/crypto/nft Live ERC-721 NFT read (Base, Ethereum, Polygon, Arbitrum #
GET /api/crypto/nft-security NFT collection risk screening via GoPlus (free, keyless) #
GET /api/crypto/stablecoins Stablecoin supply leaderboard (via DefiLlama #
GET /api/crypto/token-info On-chain token metrics by contract address (via #
GET /api/crypto/token-metadata Live on-chain token metadata for an ERC-20 or ERC-721 #
GET /api/crypto/token-price Current spot price and market data for crypto assets #
GET /api/crypto/token-safety Token honeypot & rug-pull risk screen (via GoPlus #
GET /api/crypto/token-transfers ERC-20 token transfer history for an Ethereum address (via #
GET /api/crypto/tx Live EVM transaction status and receipt lookup #
GET /api/crypto/vrf Verifiable random function - deterministic, publicly #

Documentation

📖
Documentation
https://2s.io/llms.txt
📖
APIReference
https://2s.io/discover

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/2s-io/refs/heads/main/openapi/2s-io-crypto-api-openapi.yml

Other Resources

🔗
Webhooks
https://raw.githubusercontent.com/api-evangelist/2s-io/refs/heads/main/asyncapi/2s-io-watchers-webhooks.yml

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OpenAPI Specification

2s-io-crypto-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: 2s — the (most) everything Crypto API
  version: '1'
  summary: The (most) everything API.
  description: 'The (most) everything API for AI agents: 575+ pay-per-call endpoints on one origin.'
  contact:
    name: 2s
    url: https://2s.io
    email: alley@2s.io
  x-logo:
    url: https://2s.io/icon-512.png
    altText: 2s
  x-guidance: 'Pay-per-call REST API for AI agents — hundreds of endpoints returning ground-truth data (US public records, company & legal identifiers, finance/SEC, crypto/web3, security & CVEs, medical codes, weather & geocoding, agriculture, energy, maritime, music, and more). Every endpoint is paid per call in USDC via x402 (Base or Solana) — no API key, no signup. Call any endpoint with no auth to get a 402 PaymentRequirements envelope, sign it (EIP-3009 on Base, partial SPL transfer on Solana), and retry with the PAYMENT-SIGNATURE header. Add ?trial=1 for one free real call per endpoint per hour to test before paying. To discover the right endpoint: GET https://2s.io/api/directory for the full catalog, or GET https://2s.io/api/search/endpoints?q=<natural-language task> for a ranked match. Per-call price is on each operation as x-payment-info (from $0.001). Batch up to 50 calls behind one payment via POST https://2s.io/api/batch/run.'
servers:
- url: https://2s.io
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/2s-io/refs/heads/main/openapi/2s-io-crypto-api-openapi.yml