Deployments

Base Mainnet — 8453

Base Sepolia — 84532

Collectives are Base Sepolia only for now — base is deliberately absent from slotCollectiveFactoryAddress, and the app derives its "not deployed here" message straight from those keys.

Local anvil — 31337

pnpm dev:local at the repo root starts a chain, deploys the protocol and runs an indexer against it. Both addresses are pinned — they survive edits to the Solidity, which a plain CREATE2 would not, since CREATE2 hashes the init code and so moves whenever the contract changes. See LocalBootstrap.sol.

CHAINS filters anvil out unless NODE_ENV === "development". Bundlers inline NODE_ENV, so a production build drops the entry at compile time rather than shipping a chain option pointing at nobody's localhost. The address table itself is unconditional — it is only data, and a consumer that knows it wants the local factory can still ask for it by id.

Resolving a policy

Policy factories are listed in the order a resolver should try them. Ask each one whether an address is theirs until one says yes:

import { POLICY_FACTORIES } from "@0xslots/contracts";
 
for (const factory of POLICY_FACTORIES[chainId] ?? []) {
  if (await verify(factory, policyAddress)) {
    // genuine policy — read its terms and format them
  }
}

POLICY_FACTORIES holds more than the two current factories. A policy is immutable and lives at a CREATE2 address derived from its init code, so every redeploy of a factory strands the policies the previous one minted at addresses only that older factory can claim. Superseded factories therefore stay in the list, ordered current-first, so existing slots keep resolving:

Factories predating IPolicyFactory are deliberately absent from that list. They have no verify(), so slots still pointing at their policies read as unrecognised — the honest answer rather than a guess.

ABIs

import {
  slotAbi,
  slotFactoryAbi,
  slotCollectiveAbi,
  slotCollectiveFactoryAbi,
  metadataModuleAbi,
  minimumTenurePolicyFactoryAbi,
} from "@0xslots/contracts";

Addresses are exported too, so you rarely need to hardcode one:

import {
  getSlotsHubAddress,
  slotCollectiveFactoryAddress,
  POLICY_FACTORIES,
} from "@0xslots/contracts";
 
const factory = getSlotsHubAddress(8453);