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Vybe x402 API — Pay-Per-Call Access Now Live

about 4 hours ago by ReadMe API

The Vybe x402 API is now live on Solana mainnet — pay per HTTP request in USDC, no API key required. AI agents, scripts, and developers can autonomously discover and pay for Solana analytics endpoints without signing up or maintaining a subscription.

What is x402?

x402 is an open payment protocol from Coinbase that embeds USDC payments directly into HTTP requests using the long-dormant 402 Payment Required status code. A client makes a request, signs a USDC transfer matching the returned payment requirements, and retries — all within a single HTTP exchange. No accounts, no checkout flow.

What's Included

  • Pay-per-call HTTP — every endpoint in the Vybe API Reference is callable through the x402 API at the same path. Same params, same response shapes, billed per request in USDC.
  • Prepaid WebSocket streaming — one $0.01 payment buys 1000 credits for a session. The SDK opens the WebSocket and auto-tops up before credits run out.
  • No SOL required — the Vybe x402 API covers Solana gas on every transfer; your wallet only needs USDC.
  • Open-source TypeScript SDK — @vybenetwork/x402-client on npm. Per-call USD caps, cumulative budget tracking, typed errors, AI-agent-friendly.

Endpoint + Pricing

  • Base URL: https://x402-api.vybenetwork.xyz (distinct from api.vybenetwork.xyz, the API-key subscription endpoint)
  • Default price: $0.001 per call, tiered up to $0.010 for the heaviest endpoints (Top Holders, Transfers, batch POSTs)
  • Live price table: GET https://x402-api.vybenetwork.xyz/ returns the authoritative pricing — the SDK reads this on startup, no hardcoding needed.

Quickstart

npm install @vybenetwork/x402-client
import { VybeClient, loadKeypair } from "@vybenetwork/x402-client";

const client = new VybeClient({
  wallet: await loadKeypair(process.env.CLIENT_PRIVATE_KEY!),
  rpcUrl: process.env.SOLANA_RPC_URL,
});

const token = await client.get("/v4/tokens/<mintAddress>");

The SDK handles the 402 challenge, USDC signing, and retry transparently — a single await returns the parsed body.

Why It Matters

Endpoints and WebSocket streams previously exclusive to higher-tier plans — Top Traders, Wallet PnL, Top Holders, WebSocket trade streams — are now accessible to anyone with a funded Solana wallet, at granular per-request prices. AI agents can autonomously discover, pay for, and consume Solana data without pre-configured API keys.

Beta Status

This is a beta release on Solana mainnet. The endpoint surface, error semantics, pricing tiers, and WS protocol may evolve before general availability — pin your SDK version (@vybenetwork/[email protected]) and watch the npm version history before upgrading.

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