@pmxt/sdk

TypeScript SDK for the PMXT Embed API -- fetch markets, place orders, manage portfolios.

Works in any JavaScript environment. Pairs with @pmxt/components for a complete prediction market UI.

Install

npm install @pmxt/sdk

Setup

The SDK reads configuration from environment variables:

NEXT_PUBLIC_API_KEY=your-api-key               # API key sent as X-API-Key header
NEXT_PUBLIC_API_URL=https://custom-url.com     # optional, overrides the default PMXT API

Set these in your .env.local (Next.js) or equivalent. Only NEXT_PUBLIC_API_KEY is required -- get yours from pmxt.dev/dashboard.

Quick Start

Fetch top events

import { fetchTopEvents } from "@pmxt/sdk";

const events = await fetchTopEvents(5);
for (const event of events) {
  console.log(event.title, event.markets?.length, "markets");
}

Build and submit an order

import { buildOrder, submitSignedOrder } from "@pmxt/sdk";

// 1. Build the order (returns EIP-712 typed data for signing)
const built = await buildOrder({
  tokenId: "0x123...",
  side: "buy",
  amount: 10,
  userAddress: "0xabc...",
});

// 2. Sign with the user's wallet (e.g. wagmi signTypedData)
const signature = await signTypedDataAsync(built.typedData);

// 3. Submit the signed order
const result = await submitSignedOrder({
  side: "buy",
  signature,
  tokenId: "0x123...",
  userAddress: "0xabc...",
  worstPrice: built.params.worstPrice,
  deadline: built.params.deadline,
  nonce: built.params.nonce,
  wait: true,
});

Fetch portfolio and balance

import { fetchPortfolio, fetchBalance } from "@pmxt/sdk";

const portfolio = await fetchPortfolio("0xabc...");
const balance = await fetchBalance("0xabc...");
console.log(`USDC: ${balance.free.USDC}, Positions: ${portfolio.positions.length}`);

API Reference

Catalog

Function	Description
fetchTopMarkets(limit?, sort?)	Fetch top markets by volume
fetchAllMarkets()	Fetch all active markets
fetchLiveMarketCount()	Get total count of active markets
fetchCategories()	List all category names
fetchEvent(slug)	Fetch a single event by slug
fetchTopEvents(limit?)	Fetch top events ranked by 24h volume
fetchEvents()	Fetch all active events
fetchSidebar()	Fetch pre-built sidebar data (banners, trending, sections)
fetchMarketsByOneCategory(name, limit?)	Fetch markets in a single category
fetchMarketsByCategory(limitPer?, maxCats?)	Fetch markets grouped by category
fetchEventsByCategory(eventsPer?, maxCats?)	Fetch events grouped by category, sorted by volume
fetchEventsPaginated(options?)	Fetch events with pagination and optional category filter
searchMarkets(query)	Search markets by text query
searchEvents(query)	Search events by text query

Trading

Function	Description
buildOrder(req)	Build an order and get EIP-712 typed data for signing
submitSignedOrder(req)	Submit a wallet-signed order for execution

Funds

Function	Description
buildDeposit(amount)	Build an unsigned deposit transaction
buildWithdraw(amount)	Build an unsigned withdrawal transaction
buildClaimWithdrawal()	Build a transaction to claim a pending withdrawal
getWithdrawalStatus(address)	Check withdrawal status and claimable time
fetchBalance(address)	Fetch USDC balance (total, free, used)

Portfolio

Function	Description
fetchPortfolio(address)	Fetch full portfolio summary
fetchHoldings(address)	Get the number of open positions
fetchPositions(address)	List all token positions
fetchTrades(address, limit?, offset?)	Fetch paginated trade history

Partner

Function	Description
getPartnerAccruals()	Get fee accrual summary (total accrued, paid out, outstanding)
getPartnerAccrualHistory(params?)	Fetch paginated accrual/payout history

Utilities

Function	Description
fetchPriceHistory(outcomeId, interval?, fidelity?)	Fetch price history for a single outcome
fetchPriceHistoryBatch(tokenIds, interval?, fidelity?)	Fetch price history for multiple outcomes
toCategorySlug(name)	Convert a category name to a URL slug
categoryFromSlug(slug)	Resolve a URL slug back to a category name
toEventSlug(event)	Generate a URL slug for an event

TypeScript

The SDK exports all relevant types:

import type {
  CategoryGroup,
  CategoryEventGroup,
  PaginatedEvents,
  BalanceResponse,
  Position,
  BuildOrderRequest,
  BuildOrderResult,
  SubmitOrderRequest,
  OrderResult,
  UnsignedTx,
  BuildTxResult,
  WithdrawalStatus,
  Trade,
  PartnerAccrualSummary,
  PartnerPayoutEntry,
} from "@pmxt/sdk";

Related

• @pmxt/components -- UI component library built on this SDK
• Prediction Market Starter -- clone-and-deploy Next.js app
• API Documentation