Billing: plans paid in USDC

Plans are priced in US dollars and paid in USDC on Safrochain, 1 USDC = 1 USD. There is no card payment and no automatic debit: you send a transfer, Dyma verifies it on chain, and your plan is extended at once.

Network	Default USDC	Denom
Mainnet safrochain-1	USDC (Injective)	ibc/1E180C085A3A2688CDF2A781E5990BE8AA92CE69CB62A8CC6BB9F5EE17DD5C38
Mainnet, if Dyma enables it	USDC (Noble)	ibc/8E27BA2D5493AF5636760E354E46004562C46AB7EC0CC4C1CA14E9E20E2545B5
Testnet safro-testnet-1	USDC (Noble testnet)	ibc/2180E84E20F5679FCC760D8C165B60F42065DEF7F46A72B447CFF1B7DC6C0A65

Both mainnet USDCs have 6 decimals. Only the exact denoms above count: a token merely called USDC does not.

Buying or renewing a plan

1. Project → Billing → Plans. Pick a plan and a duration: 1, 3, 6 or 12 months. Twelve months cost the yearly price (two months free on the default plans).

2. Studio shows the quote (the price, and for upgrades the credit for the days left) and opens a payment request valid for 60 minutes:

   Field	Example
   Amount	99.000000 USDC
   Send to	Dyma's treasury address (addr_safro1…)
   Memo	DYMA-7K2M9QXA — unique to this request

3. Pay it, either way:

   • With your wallet (Zunia, Keplr, Cosmostation, EightSaf, WalletConnect): Studio builds the transfer with the memo; you approve it.
   • Manual transfer from any Safrochain wallet: send the exact amount of the accepted USDC to the treasury with the memo, then paste the transaction hash in Studio. Pasting is optional: Dyma also scans incoming transfers to the treasury every minute and matches the memo.

4. Dyma verifies the transaction on chain and, once it is confirmed, extends the plan and issues an invoice with the transaction hash and an explorer link.

Your USDC is on Injective?

The payment page says Pay with USDC (Injective) on Safrochain: Dyma takes Circle USDC that came from Injective, on Safrochain. If your USDC is still on Injective, bridge it over IBC first (a minute or two):

1. In Keplr or Leap, open USDC on Injective and choose an IBC transfer (Keplr: IBC Transfer; Leap: Send with Safrochain as the destination).
2. Destination chain Safrochain. If the wallet asks for a channel, use channel-495 (the Injective side; it arrives on Safrochain channel-2).
3. Send it to your own addr_safro1… address and keep a little SAF there for the payment fee.
4. It shows up as USDC (ibc/1E18…5C38). Come back and pay.

When Dyma has configured a bridge page, the payment page also shows a Bridge USDC button.

Paying directly on Injective

Studio lists Pay directly on Injective as a second network. It shows Coming soon until Dyma opens it; then the payment request asks for USDC on Injective (erc20:0xa00C59fF5a080D2b954d0c75e46E22a0c371235a) sent to Dyma's inj1… treasury with the memo, from any Injective wallet or exchange that supports memos (fee in INJ). Paste the transaction hash in Studio (Dyma also watches the Injective treasury). Signing from Studio with a wallet is not available on Injective yet.

What the verification checks

Check	Refused with
The transaction exists and succeeded on the billing chain	TX_NOT_FOUND (retried), TX_FAILED, CHAIN_MISMATCH
It transfers to the treasury (bank send, multi-send, or inside an authz exec)	WRONG_RECIPIENT
In an accepted denom, exactly	WRONG_DENOM
With the request's memo	MEMO_MISMATCH
Sent between 5 minutes before the request and its expiry plus the late-payment window (3 days)	PREDATES_INVOICE, TOO_LATE
Confirmed (1 block by default)	NOT_CONFIRMED (retried)
Never used for another payment	ALREADY_USED

• Short payment: the request becomes Partially paid and shows what is left; send the rest with the same memo, the transfers add up.
• Expired request: a transfer that arrives within 3 days after expiry still settles it. After that, create a new request.
• Only one payment can be in flight per project at a time; cancel a pending request to start another.
• The minimum charge is 1 USD.

Changing plan

Change	Effect
New (from Free, or after a lapse)	the term starts when the payment settles
Renewal (same plan)	the term end moves by the months bought
Upgrade (pricier plan)	switch now and pay only the difference for the days left in the term, plus any extra months
Downgrade (cheaper paid plan)	prepaid, starts at the end of the current term; no refund for unused time
Back to Free	scheduled at the end of the term (or now, if you choose)

Renewals and grace

• Nothing is charged automatically. Reminders arrive 7, 3 and 1 days before the term ends and on the day itself (e-mail and Studio notifications; they cannot be muted).
• If the term ends unpaid, a 7-day grace starts: your plan's limits stay in place, the subscription shows past due, and reminders follow on days 3 and 6.
• Paid during the grace, the new term starts where the old one ended (grace days are not free).
• When the grace ends unpaid, the project moves to Free and Free's limits apply from then on (300 verifications a month by default).
• A project suspended by Dyma is not reactivated by a payment; contact support.

Free plan

Free never expires. Its usage counter resets every month.

Invoices

Billing → Invoices lists every paid request with its number, amount, asset, payer address, transaction hash and explorer link. Card invoices exist only if Dyma ever enables Stripe, which is switched off by default.