x402 Protocol · USDC on Base · Pay Per Call
NexusAPI
444 Paid Endpoints for AI Agents
Crypto, AI, Social Media, Finance, Weather, Tools & more.
Pay per call in USDC on Base. No API keys.
444
Endpoints
14
Categories
$0.05–$0.20
Price Range (USD)
Base
Network
Endpoint Categories
Browse all 444 endpoints across 14 categories
🤖
AI & Machine Learning
50 endpoints
chatsummarizetranslatesentimentkeywords+45 more
⛩️
Anime & Manga
8 endpoints
topsearchdetailsseasonalrecommendations+3 more
₿
Crypto & Blockchain
50 endpoints
pricehistorymarkettrendingsearch+45 more
📊
Finance & Markets
50 endpoints
quotehistorysearchmoversearnings+45 more
🎉
Fun & Trivia
22 endpoints
randomprogrammingrandomsearchrandom+17 more
🎮
Gaming
12 endpoints
searchdetailsdealsstatstop+7 more
🌍
Geo & Location
40 endpoints
geocodereverse-geocodeip-lookuptimezonedistance+35 more
💪
Health & Fitness
30 endpoints
bmicaloriesnutritionexercisesbodypart+25 more
🎬
Entertainment & Media
17 endpoints
trendingsearchdetailsratingstrending+12 more
📰
News & Media
15 endpoints
topcategorysearchsourcecountry+10 more
📱
Social Media
51 endpoints
usertweetssearchtrendingfollowers+46 more
🔧
Tools & Utilities
50 endpoints
generatedecodelookupgenerategenerate+45 more
🌤️
Weather & Climate
40 endpoints
currentforecasthourlydailyhistorical+35 more
🌐
Web & Search
9 endpoints
searchimagesnewsvideosscholar+4 more
How It Works
🔍
1. Discover
Fetch /openapi.json to discover all 444 endpoints with pricing, schemas, and x402 payment info.
💳
2. Pay
Send an X-PAYMENT header with your USDC payment proof. The x402 protocol handles escrow and settlement on Base.
⚡
3. Get Data
Once payment is verified, your request is proxied to the upstream API and the response is returned instantly.
Quick Start
terminal
# 1. Discover endpoints
curl https://nexus-api.vercel.app/openapi.json
# 2. Call an endpoint (returns 402 with price)
curl -X GET https://nexus-api.vercel.app/api/crypto/price
# 3. Pay with x402 (agent handles this automatically)
curl -X GET https://nexus-api.vercel.app/api/crypto/price \
-H "X-PAYMENT: <payment_proof>"