REST API · x402 · USDC ON BASE

Blue Agent API

Pay per call with USDC. No subscriptions, no API keys.
18 endpoints · all tools available.

Base URL

blueagent.dev/api/v1

Protocol

HTTPS · REST · JSON

Payment

x402 · USDC on Base

# builder-score — $0.001 per call
curl -X POST https://blueagent.dev/api/v1/builder-score \
  -H "Content-Type: application/json" \
  -H "X-Payment: <x402-payment-token>" \
  -d '{"handle":"madebyshun"}'

// AVAILABLE TOOLS

4

Security

5

Research

6

Builder

3

Premium

40+ total tools via gateway —see Hub for full catalog →

// ERROR CODES

400Bad RequestMissing or invalid parameters.
402Payment RequiredNo X-Payment header or payment insufficient.
429Too Many RequestsRate limit exceeded — 100 req/min per IP.
502Bad GatewayUpstream service unreachable. Retry shortly.