Lifi
LI.FI REST API for cross-chain and same-chain token swaps, bridging, DeFi deposits...
Install
npx skills add internet-court/internet-court-skill --skill lifi -g -a claude-code -y- Repository
- internet-court/internet-court-skill7k
- Category
- AI and agents
- Updated
- 9d ago
- License
- See repository
- Context cost
- Mediumabout 3,000 tokens
- Runs scripts
- No, instructions only
What it does
LI.FI REST API for cross-chain and same-chain token swaps, bridging, DeFi deposits (Composer), yield discovery (Earn), and intent-based execution (Intents). USE THIS SKILL WHEN USER WANTS TO: - Swap tokens between different blockchains (e.g., "swap USDC on Ethereum to ETH on Arbitrum") - Bridge tokens to another chain (e.g., "move my ETH from mainnet to Optimism") - Swap tokens on the same chain with best rates (e.g., "swap ETH to USDC on Polygon") - Find the best route or quote for a token swap across chains - Deposit into DeFi vaults/lending/staking in one click, including cross-chain (Composer: Aave, Morpho, Pendle, EtherFi, Yearn, etc.) - Discover yield opportunities, vault APY/TVL data, or track DeFi positions (Earn) - Execute gasless or intent-based transfers via a solver network (LI.FI Intents) - Move stablecoins cheaply with optimized defaults (stablecoin preset) - Build multi-chain payment flows (accept any token, settle in specific token) - Check supported chains, tokens, bridges, or gas prices - Track status of a cross-chain transaction, recover from failed/partial transfers - Query transfer history/analytics or withdraw collected integrator fees - Build backends, bots, or AI agents (any language) that need cross-chain functionality
LI.FI API Integration
LI.FI aggregates bridges, DEXs, intent solvers, and DeFi protocols behind one API. This skill covers the full product surface:
| Product | Base URL | What it does |
|---|---|---|
| Core API (swaps & bridges) | https://li.quest/v1 | Quotes, routes, execution data, status tracking across 75+ chains |
| Composer (DeFi execution) | https://li.quest/v1 (same /quote endpoint) | One-click swap/bridge + deposit/withdraw into vaults, lending, staking |
| Earn (yield data) | https://earn.li.fi/v1 | Vault discovery, APY/TVL analytics, portfolio positions |
| Intents (solver marketplace) | https://order.li.fi | Intent-based orders filled by a competitive solver network |
For AI agents, LI.FI also offers an MCP server (https://mcp.li.quest/mcp) and a CLI (@lifi/cli). LI.FI recommends agents and backends use the REST API directly rather than the SDK.
Authentication & Rate Limits
API key is optional, it only raises rate limits. Header: x-lifi-api-key (get one at the LI.FI Partner Portal).
curl "https://li.quest/v1/chains" -H "x-lifi-api-key: YOUR_API_KEY"
| Tier | /quote, /advanced/routes | /advanced/stepTransaction | Other endpoints |
|---|---|---|---|
| Without API key | 75 req / 2 hours | 50 req / 2 hours | 100 req / minute |
| With API key (default) | 100 RPM (2-hour rolling window: 12,000 / 2h) | same | 100 RPM |
Responses include ratelimit-limit, ratelimit-remaining, ratelimit-reset (seconds) headers. 429 responses carry error code 1005. Never expose your API key in client-side code.
Quick Start, The Five-Call Recipe
The canonical flow for any swap/bridge:
