Pay Synthflow AI with Crypto

Synthflow's self-serve plan starts at $0/month and only begins charging after you make calls or use chat agents. SolCard makes more sense here than a prepaid gift-card workaround because the core bill is metered usage, not a fixed annual seat.

PAYG usage is billed automatically once unbilled spend reaches $200, and Synthflow notes the actual invoice can exceed that amount because thresholds are checked periodically instead of in real time. SolCard lets you keep those automatic charges on a crypto-funded card.

Synthflow includes 5 concurrency units on PAYG and sells extra units for $20 per month each. If your outbound campaigns or inbound queues need more simultaneous calls, SolCard can cover that recurring add-on without forcing an Enterprise upgrade.

Synthflow lists phone numbers as a separate $1.50 monthly charge on PAYG. That matters when you are spinning up multiple local or campaign-specific numbers and want those subscriptions billed through the same payment method as call usage.

Synthflow offers white-labeling, custom domains, and reseller tooling as a $2,000 per month add-on on PAYG. SolCard is especially relevant for agencies that want to fund a branded client-facing workspace from crypto while staying on the self-serve billing track.

Synthflow says making calls and using chat agents requires a payment method, and its billing FAQ lists major credit and debit cards through Stripe. Because no official self-serve crypto checkout is advertised, SolCard is the cleanest way to pay Synthflow from onchain funds without changing Synthflow's expected billing flow.