> ## Documentation Index
> Fetch the complete documentation index at: https://docs.voiz.digital/llms.txt
> Use this file to discover all available pages before exploring further.

# Add liquidity

> Join the open book with one collateral amount via market.addLiquidity.

You put in `credits`. The SDK calls `OutcomeAmm.addFunding` on this market's AMM. That is `market.addLiquidity` after the book is open.

First LP is [`market.seed`](/market/seed) — same contract, with a distribution hint from the odds (Invalid weight 0). For inventory, fees, and resolution, read [How liquidity works](/market/liquidity) first.

You need a seeded market (`seedStatus()` is `"seeded"` when AMM `totalSupply > 0`), enough collateral, and `owner` as the connected wallet.

```ts theme={null}
const credits = parseUnits('50', 18)

await market.addLiquidity({
  credits,
  owner: yourAddress,
  setProgress, // SDK sends "Minting shares…"
})
```

Later LP uses an empty distribution hint and joins **current** proportions. Tiny `credits` fail with “Amount too small…”.

You receive ERC-20 pool shares (`vAMM`), one lot per market. Find them with [`client.user(addr).lpPositions`](/user/get-lp-positions).

## Next

[Remove liquidity](/market/remove-liquidity)