# Argus & LIFT Trading API

> Trade ArgusPad and lift.fun tokens on Arc through one keyless API

shrine.trade's free, keyless HTTP API for the Argus and LIFT launchpads on Arc (chain id 5042, Circle's USDC-native chain). Buy and sell any Argus or LIFT token in the Uniswap pool it launched into (v4 with the launchpad's fee hook, or v3 for older launches), plus any other Uniswap pool on Arc against USDC. Every endpoint returns unsigned EIP-1559 transactions the caller signs and sends themselves; the API never holds keys or funds.

Key facts:

- Base URL: https://api.shrine.trade/arc (launch feed: wss://api.shrine.trade/arc/api/launches/ws; advanced data stream: wss://api.shrine.trade/arc/api/stream/ws?key=…, free key by request)
- Auth: none. Limits: 3 requests/second per IP per endpoint (HTTP 429 beyond).
- Everything is USDC: gas is paid in USDC (Arc's native token), every pool is priced in USDC, and `amount` on a buy is USDC to spend. Sells pay out USDC.
- Fee: 0.75% per trade to shrine.trade, taken in USDC inside the swap. Reads are free. The launchpad's pool fee, the token's creator tax and its snipe tax (early buys) apply on top and are inside every quote.
- Responses carry `txs`: sign each with the wallet in `from` and POST the signed hex to /api/send as `{ "signedTx" }`, in order - no RPC needed. The first buy or sell of a token carries one-time Permit2 approvals in front of the swap. Errors are `{ "error": code, "message": text }`.
- No token creation endpoint yet.
- Full text of every page: https://shrine.trade/arc/llms-full.txt

## Docs

- [Argus & LIFT Trading API: Trade ArgusPad and lift.fun Tokens on Arc](https://shrine.trade/arc/index.md): Build bots that trade Argus and LIFT tokens on Arc, Circle's USDC-native chain, through one free, keyless API. Buy and sell in the Uniswap pool every launch lives in, with the launchpad's fees and snipe tax already inside the quote.
- [Argus & LIFT Trade Stream: Every Buy, Sell and Liquidity Change on Arc](https://shrine.trade/arc/advanced-stream.md): WebSocket stream of every buy, sell, liquidity add and liquidity removal for the Argus and LIFT tokens you choose, in their Uniswap v4 or v3 pool on Arc. Free key, live.
- [Argus & LIFT Trading API Errors](https://shrine.trade/arc/errors.md): Every error code the Argus & LIFT Trading API returns, grouped by endpoint, with what to do about each.
- [Argus & LIFT Trading API FAQ](https://shrine.trade/arc/faq.md): Answers about supported launchpads, USDC amounts, fees, snipe tax, approvals, private-key safety, slippage and rate limits for the Argus & LIFT Trading API on Arc.
- [Argus & LIFT Trading API Fees](https://shrine.trade/arc/fees.md): shrine.trade charges 0.75% per trade on Argus and LIFT tokens on Arc, taken in USDC inside the swap; reads are free. The launchpad's pool fee, creator tax and snipe tax apply on top.
- [Live Argus and LIFT Launches on Arc: New Token Feed](https://shrine.trade/arc/live-launches.md): WebSocket feed of every new Argus and LIFT launch on Arc, plus every plain Uniswap v4 pool opened against USDC, the moment it happens. Free and keyless.
- [Buy & Sell Argus and LIFT Tokens on Arc (ArgusPad, lift.fun)](https://shrine.trade/arc/local-trade.md): Buy or sell any Argus or LIFT token on Arc with one script, in the Uniswap pool it launched into. Pay in USDC; the launchpad's fees, creator tax and snipe tax are already inside the quote.
- [Argus & LIFT Token Info API: Price, Snipe Tax and Pool on Arc](https://shrine.trade/arc/token-info.md): Read any Argus or LIFT token on Arc: which launchpad and pool, pool fee, creator tax, the current snipe tax, price and market cap in USDC, and a wallet's balance.