About the index ↗
MARKET MONITOR / CATALOGUE Services 83,399 MCP listed 39,682 x402 43,726 Rails Base / Solana / Polygon / Arbitrum Imported 2026-10-26 · 2 sources
Provider

x402tap.com

x402tap.com · 16 listed services · provider site

x402 Weather API x402 REST usage

Live current weather conditions for any city, sourced from Open-Meteo

x402tap.com Geo & Maps 55 calls / 30d checked 2026-10-26
0.01 USDC per call per call

x402 Web Search x402 REST usage

Real-time web search (via Exa) — ranked results with title, URL, published date, author, and relevance score for a query

x402tap.com Search & Research 28 calls / 30d checked 2026-10-26
0.015 USDC per call per call

x402 Crypto Market Data x402 REST usage

Rich market data for one or more cryptocurrencies: rank, 24h high/low, volume, ATH, and more

x402tap.com Data & Finance 9 calls / 30d checked 2026-10-26
0.01 USDC per call per call

Prediction arb x402 REST usage

Find prediction-market questions priced differently on Polymarket vs. Kalshi — a cross-platform divergence signal built from data no single-platform competitor has

x402tap.com Search & Research 6 calls / 30d checked 2026-10-26
0.05 USDC per call per call

x402 Multi-Chain RPC x402 REST usage

Safelisted read-only JSON-RPC proxy across major EVM chains (base, ethereum, polygon, arbitrum, optimism) — eth_call, eth_getBalance, eth_getTransactionReceipt, eth_getBlockByNumber, and more

x402tap.com Crypto & Payments 6 calls / 30d checked 2026-10-26
0.01 USDC per call per call

x402 Trend Insights x402 REST usage

Trend insights for a topic, based on real Wikipedia page-view volume and momentum. Premium tier adds relatedTrends: other Wikipedia article titles matching the same search terms (title-similarity, not a curated semantic-...

x402tap.com Search & Research 5 calls / 30d checked 2026-10-26
0.01 USDC per call per call

x402 Heartbeat x402 REST usage

Heartbeat endpoint billed via a batch-settlement payment channel

x402tap.com Crypto & Payments 5 calls / 30d checked 2026-10-26
0.001 USDC per call per call

x402 Crypto Price Lookup x402 REST usage

Look up current price, 24h change, and market cap for one or more cryptocurrencies

x402tap.com Data & Finance 5 calls / 30d checked 2026-10-26
0.01 USDC per call per call

x402 Kalshi Markets x402 REST usage

Search or list open Kalshi prediction markets (regulated US event contracts)

x402tap.com Crypto & Payments 5 calls / 30d checked 2026-10-26
0.01 USDC per call per call

x402 ENS Resolver x402 REST usage

Resolve an ENS name to an address, or reverse-resolve an address to its primary ENS name

x402tap.com Crypto & Payments 5 calls / 30d checked 2026-10-26
0.01 USDC per call per call

x402 Crypto Trending x402 REST usage

Get the top trending cryptocurrencies right now, ranked by search interest

x402tap.com Data & Finance 4 calls / 30d checked 2026-10-26
0.01 USDC per call per call

x402 Gas Price Oracle x402 REST usage

Current gas price and EIP-1559 fee estimate for a chain (base, ethereum, polygon, arbitrum, optimism)

x402tap.com Crypto & Payments 2 calls / 30d checked 2026-10-26
0.01 USDC per call per call

x402 Wallet Balance Lookup x402 REST usage

Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism)

x402tap.com Crypto & Payments 2 calls / 30d checked 2026-10-26
0.01 USDC per call per call

x402 DeFi Chain TVL Ranking x402 REST usage

Rank blockchains by total DeFi value locked (TVL) across all protocols

x402tap.com Data & Finance 2 calls / 30d checked 2026-10-26
0.01 USDC per call per call

x402 Polymarket Markets x402 REST usage

Search or list active Polymarket prediction markets, ranked by 24h volume

x402tap.com Crypto & Payments 2 calls / 30d checked 2026-10-26
0.01 USDC per call per call

x402 Protected Content x402 REST usage

Premium content

x402tap.com Crypto & Payments 41 calls / 30d checked 2026-10-26
0.01 USDC per call per call

Provider identity is derived from the domain or repository in the source record. If two vendors share a host, they appear together here — that is a limitation of the data, not a statement about ownership.