Your account

Manage your subscription and check usage with your API key.

Manage billing

Update your card, change plan, or cancel. Opens the secure Stripe billing portal — your key is the credential, no separate login.

Checking usage

Every API response includes your live headroom in the X-RateLimit-Remaining header. To check programmatically:

curl -X POST https://x402stock.xyz/api/account/usage \
  -H "Content-Type: application/json" \
  -d '{"key":"sk_live_…"}'

Lost your key?

Keys are shown once and never stored, but we can replace yours. Recover by email →

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