Free & Instant

Submit your x402 endpoint

Add your paid API to the x402dash index in seconds. We probe it live, verify the x402 payment spec, and index it with a reliability score. AI agents discover it via search, MCP, and semantic matching.

Requirements

✓ Your endpoint returns HTTP 402 when called without payment
✓ The 402 response includes a valid x402 payment spec (X-Payment-Required header)
✓ Payment asset is USDC on Base (eip155:8453)
✓ The endpoint is publicly reachable (no VPN, no IP whitelist)

Not sure if your endpoint qualifies? Just submit the URL below — we verify it live and tell you exactly what's missing.

Register your endpoint

Or use the API directly

Agents and scripts can register endpoints programmatically:

# Minimal — just the URL
curl -X POST https://api.x402dash.com/v1/register \
  -H "Content-Type: application/json" \
  -d '{"url": "https://your-api.com/endpoint"}'

# With metadata
curl -X POST https://api.x402dash.com/v1/register \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://your-api.com/endpoint",
    "name": "My DeFi Oracle",
    "description": "Real-time token prices on Base",
    "category": "DeFi/Crypto",
    "tags": ["defi", "oracle", "price-feed"],
    "contact": "dev@example.com"
  }'

Rate limit: 5 requests/hour per IP. Only url is required. The endpoint is verified live before insertion.

What happens after you submit

1. Live verification

We call your endpoint immediately. It must return HTTP 402 with a valid x402 payment spec. If verification fails, you get an error explaining why.

2. Indexed & scored

Your endpoint enters the monitoring pool. Every 30 minutes we probe it and update its liveness score (0–100). AI enrichment (description, category, tags) runs within the hour.

3. Discoverable

Your endpoint appears in /v1/endpoints, /v1/search, /v1/route, /v1/agent-search, and the MCP server. AI agents worldwide can find and call it.