the402 x402 endpoint directory

⚠️ BETA — IOC data under active verification 2026-05-25, do not rely on matches for production. Supply chain campaign

Wallet activity profile - total transactions, NFT and token counts classified into an activity tier (dormant/regular/a

Get a Wikipedia article summary by exact title. Returns extract (lead paragraph), description, thumbnail, originalimag

Historical USD price of a token at a specific past timestamp, by chain and contract address or coingecko id. For backt

Total stablecoin circulating supply per blockchain, ranked, showing where dollar liquidity sits. For routing, market a

Search recent news articles via Google News. Returns articles with title, source, link, snippet, published_at. Use ?q=

Top stablecoins ranked by circulating market cap, with current peg price and peg mechanism, aggregated across all chai

Get Hyperliquid vault summaries sorted by APR

Query Polymarket markets with filtering, sorting, and pagination

Query Kalshi markets with filtering, sorting, and pagination

List Polymarket events with filtering and sorting

Search markets across Polymarket, Kalshi, Limitless, Opinion, and Predict.Fun in a single call

Get the global leaderboard of smart wallets

List Predict.Fun markets with filtering and sorting

List Polymarket markets with cursor-based keyset pagination (same filters as /polymarket/markets)

Query historical Polymarket trade data with flexible filtering

Fetch all user positions with filtering and pagination

Filter wallets by market trades with AND/OR logic

Discover markets where high-performing wallets are active

List Polymarket events with cursor-based keyset pagination

List Limitless markets with filtering and sorting

List Opinion markets with filtering and sorting

Compare performance across trading style cohorts

List sports markets grouped by game

Fear & Greed index history.

Get current or historical price for a specific token

Aggregated project profile (token + DeFi + social).

Fetch historical orderbook snapshots for a Kalshi market

List UMA oracle questions filtered by state (proposed, disputed, resolved, …)

Fetch trading activity (merges, splits, redeems) for a user

Get OHLCV candlestick data for a Binance trading pair

List crypto up/down prediction markets

Token price history.

Get current or historical price for a specific token

Get historical orderbook snapshots for a token

List available sports categories

Fetch historical orderbook snapshots for a Predict.Fun market

Fetch historical orderbook snapshots for an Opinion market

Fetch historical orderbook snapshots for a Limitless market

Bulk identity lookup for up to 200 wallet addresses (POST body: {addresses: [..]})

Batch retrieve wallet profiles for multiple addresses

Get current or historical price for a specific token

Get raw book ticker data at microsecond granularity

Raw SQL query against 80+ ClickHouse tables (sub-second).

Get raw book ticker data at microsecond granularity

Exchange order book depth.

Perpetual contract snapshot.

Query Polymarket markets with filtering, sorting, and pagination

Project search by name, ticker, or description.

Aggregated wallet profile across chains.