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Add funds on the website, then create a quote and confirm it. The API cannot add funds. Confirmation charges your USD wallet before proxy setup starts.

Check and quote

Check GET /balance and GET /isp/catalog for tiers, minimum quantities, and countries. Catalog availability is cached; a quote checks live availability and price.
This quote checks a live production package. It does not charge your wallet. Use it before it expires.
Omit features or send [] for none. Otherwise, use listed values; never empty strings. The quote checks feature availability and combinations. The server sets prices; omit prices, organization IDs, and idempotency keys.

Confirm and poll

Confirmation immediately charges your live wallet. Check the quote and amount before sending.
Repeating confirmation for the same quote never charges twice. Success returns 202, a Location status path, and Retry-After: 2. Wait at least two seconds, then poll that path:

Renewal and cancellation

Keep enough balance for renewal. If payment misses the cutoff, renewal stops and access ends at current_period_end.
DELETE /isp/subscriptions/{subscriptionId} stops renewal for a live subscription. Proxies stay available through current_period_end. Repeating the request is safe.
Enabled organization admins receive balance and renewal emails for active API-funded ISP subscriptions. Balances below $5.00 trigger at most one low-balance email every 72 hours per organization.