⚡ Pro API Catalog

33 paid x402 APIs built for AI agents. Micropayments from $0.001/call. No signup, no KYC — pay with USDC on Base.

🔑 How x402 Payments Work

x402 = HTTP 402 Payment Required for AI agents. Your agent sends USDC with each API call — no API keys, no signup, no billing dashboard.

1

Send request with x402-version header

2

Server returns 402 with price + wallet address

3

Your agent sends USDC tx on Base

4

Resend with tx hash → get data

Example: Call /crypto for $0.10

# Step 1: Request with version header
curl -H "x402-version: 1" https://minia2a.uk/crypto

# → 402 response with: X-PAYMENT-REQUIRED header
# Send $0.10 USDC to 0xf16F... (on Base)

# Step 2: Resend with tx hash
curl -H "x402-version: 1" \
     -H "x402-payment-tx: 0xYOUR_TX_HASH" \
     https://minia2a.uk/crypto

💡 Use minia2a SDK for automatic x402 payment handling in Python/JS — zero config.

📡 All 33 Paid APIs

Standard Tier · $0.005/call

/cryptoCrypto OracleMulti-source crypto price oracle with 24h change, volume, market cap./walletWallet ScannerFull wallet portfolio across 5+ chains. Balances, tokens, DeFi positions./arbDEX Arb ScannerCross-DEX arbitrage detector. Compare prices across Uniswap, Sushi, Curve, Balancer./blockBlock ExplorerBlock details, transactions, gas used, validator info for any EVM chain./tokenToken InfoToken metadata, price, supply, holders, contract verification status./chainChain CompareCompare gas, TPS, finality, TVL across 10+ EVM chains. Find cheapest chain./polymarketPolymarket FeedLive prediction market data. Prices, volume, liquidity, event metadata./captchaCAPTCHA SolverSolve reCAPTCHA v2/v3, hCaptcha, Turnstile. 15-30s average solve time./emailEmail SenderSend transactional emails via SMTP. HTML or plain text, attachment support./contract-checkContract ScannerSmart contract security scan: ownership, proxy risk, honeypot detection.

Mid Tier · $0.003/call

/browserBrowser RenderHeadless Chromium. Render JS-heavy pages, take screenshots, extract data./screenshotWeb ScreenshotCapture any webpage as PNG screenshot. Full JS rendering, returns base64 image.

Budget Tier · $0.002/call

/web2mdWeb to MarkdownConvert any URL to clean, readable markdown. Strip ads, nav, clutter./gasGas Tracker APIReal-time gas fees. ETH, Base, Arbitrum, OP, Polygon. JSON format./tokenscanToken Security ScanHoneypot check, liquidity analysis, holder concentration, buy/sell tax./dnsDNS LookupA, AAAA, MX, TXT, NS, CNAME, SOA records. DNSSEC validation./txTX DecoderDecode any EVM transaction. Method signature, params, logs, internal calls./abiABI LookupFetch verified contract ABI from Etherscan and 8+ other explorers./briefingAgent BriefingDaily crypto market summary. Prices, news, gas, trending tokens. For AI agents./github-trendingGitHub TrendingTrending repositories today/this week. Filter by language./hnHacker NewsTop stories, Show HN, Ask HN, jobs. Sorted by score, comments, recency./npmnpm RegistryPackage metadata, versions, dependencies, download counts, README./currencyCurrency Rates170+ fiat exchange rates. EUR, GBP, JPY, CNY, KRW. Updated hourly./trendingTrending ResearchWeb-wide trend analysis on any topic. Reddit, X, HN, GitHub aggregated./price/advancedAdvanced Crypto Prices1000+ tokens, historical data, OHLCV candles, multi-source aggregation./convertCSV↔JSON ConverterConvert CSV to JSON or JSON to CSV. Handles nested objects, large files./diffText Diff Tool (API)Compute unified or inline diff between two texts. Line-level, word-level.

Micro Tier · $0.001/call

/hashHash FunctionsSHA-256, SHA-512, Keccak-256, MD5, RIPEMD-160. Hex or base64 output./jsonJSON ToolsValidate, format, minify, query with JSONPath, diff two JSON objects./unshortenURL ExpanderFollow redirects, reveal destination. Resolve t.co, bit.ly, tinyurl./tsTimestamp ConverterUnix timestamp ↔ ISO 8601 ↔ human-readable. Any timezone./ipIP GeolocationIP → country, city, ISP, ASN, timezone. IPv4 + IPv6 support./rngRandom GeneratorCryptographic random: integers, floats, hex, UUID, dice rolls, shuffle.

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