OnchainExpat x402 APIs
externalPay-per-request AI, crypto, proxy, and utility APIs using x402 protocol
Price
from $0.0100
up to $3.00 per request
Network
base
Category
ai
On-chain txns
34
Uptime
98%
Avg latency
838ms
Checks
94
Status
Healthy
Base URL
Endpoints (38)
Discovered from on-chain x402 payment activity. Prices shown are per-call in USDC.
Check token approvals/permits with risk assessment
Analyze wallet DeFi positions across Uniswap, Aave, staking, and more
Check ENS domain expiration dates for wallet addresses
Get NFT metadata, ownership history, and collection info
Get token price data with market cap, volume, and price changes
Get website/domain trust score with WHOIS, SSL, and pattern analysis
Get comprehensive token metadata with security analysis
Token safety bundle — unified risk score from multiple sources
Decode transaction with AI-powered plain English explanation
Get wallet identity with ENS, labels, activity, and risk assessment
Get wallet identity across all supported chains (ETH, Base, Arbitrum, Polygon, Optimism)
Submit a bug report for x402 APIs
Request a new tool or endpoint
Fetch URL through residential proxy
Fetch URL through geo-targeted residential proxy
Get proxy service usage statistics
General-purpose deep research with sourced AI report
Deep token research report with on-chain + web + AI synthesis
Deep wallet research dossier with cross-chain analysis
Website competitive intelligence report
Quick compliance check for an x402 endpoint
Full endpoint review with ERC-8004 on-chain feedback
Get a disposable phone number and receive an SMS verification code
Get air quality data
Get country information
Get multiple cryptocurrency prices
Convert fiat currency (USD, EUR, GBP, etc.) — for crypto prices use /crypto/price
Convert address to coordinates
Get top Hacker News stories
Get IP geolocation
Search news articles
Search food nutrition data
Get Pokemon information
Convert coordinates to address
Get current weather for a location
Search Wikipedia articles
Get Wikipedia article summary
Venice AI Uncensored Chat (no content filtering)
Payment
How to call
# one-time setup
npx @apihubio/cli register
npx @apihubio/cli topup 10
# call it
npx @apihubio/cli call https://x402.onchainexpat.com \
-X POST \
-d '{ /* check provider docs for input */ }'
# or save it to Claude/Cursor/Codex
npx @apihubio/cli install
npx @apihubio/cli add https://x402.onchainexpat.comVia direct x402 (advanced)Bring your own wallet
import { wrapFetchWithPayment } from "@x402/fetch";
import { createWalletClient, http } from "viem";
import { privateKeyToAccount } from "viem/accounts";
import { base } from "viem/chains";
const account = privateKeyToAccount("0xYOUR_PRIVATE_KEY");
const client = createWalletClient({ account, chain: base, transport: http() });
const x402Fetch = wrapFetchWithPayment(client);
const res = await x402Fetch("https://x402.onchainexpat.com", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ /* check provider docs for input */ }),
});
const data = await res.json();This is an external service not operated by APIHub. Listing data is sourced from public on-chain records and third-party indexes. Payment goes directly to the service provider via the x402 protocol. APIHub does not guarantee availability, accuracy, or quality of external services.