Create a stablecoin mint operation

Create a provider-backed mint operation for a registered stablecoin. Funding and destination accounts are normal Grid ExternalAccount objects; any provider-specific Brale address linkage is managed internally by Grid. Wire-funded mints return funding instructions and remain pending until the provider reports funds received.

POST /stablecoins/{stablecoinId}/mints

Create a stablecoin mint operation

cURL

curl --request POST \
  --url https://api.lightspark.com/grid/2025-10-13/stablecoins/{stablecoinId}/mints \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "amount": "1000000",
  "fundingSource": {
    "type": "WIRE"
  },
  "destination": {
    "accountId": "ExternalAccount:019542f5-b3e7-1d02-0000-000000000201"
  },
  "description": "Initial program funding mint"
}
'

201

{
  "id": "StablecoinOperation:019542f5-b3e7-1d02-0000-000000000301",
  "stablecoinId": "Stablecoin:019542f5-b3e7-1d02-0000-000000000002",
  "operationType": "MINT",
  "status": "CREATED",
  "amount": "1000000",
  "provider": "BRALE",
  "providerEnvironment": "SANDBOX",
  "stablecoinProviderAccountId": "StablecoinProviderAccount:019542f5-b3e7-1d02-0000-000000000001",
  "createdAt": "2026-05-20T16:40:00Z",
  "updatedAt": "2026-05-20T17:10:00Z",
  "source": {
    "type": "ACH_DEBIT",
    "externalAccountId": "ExternalAccount:019542f5-b3e7-1d02-0000-000000000101",
    "accountId": "InternalAccount:019542f5-b3e7-1d02-0000-000000000102",
    "sourceTokenIdentifier": "USDC",
    "cryptoNetwork": "SOLANA"
  },
  "fundingInstructions": {
    "rail": "SPARK",
    "network": "SPARK",
    "address": "spark1...",
    "valueType": "ACME"
  },
  "destination": {
    "accountId": "ExternalAccount:019542f5-b3e7-1d02-0000-000000000205",
    "rail": "WIRE"
  },
  "estimatedDelivery": {
    "rail": "ACH_CREDIT",
    "amount": "100",
    "currency": "USD",
    "timing": "1-3 business days"
  },
  "expiresAt": "2026-05-27T16:40:00Z",
  "providerStatus": "pending",
  "failureReason": "PROVIDER_TRANSFER_FAILED",
  "description": "Initial program funding mint"
}

Authorizations

Authorization · string · header · required

API token authentication using format <api token id>:<api client secret>

Headers

Idempotency-Key · string · required

Required idempotency key for retrying this mint request safely.

Maximum string length: 255

Path Parameters

stablecoinId · string · required

System-generated stablecoin identifier

Body

application/json

amount · string · required

Amount to mint in the stablecoin's smallest unit. The amount must convert exactly to a whole fiat cent for the token decimals.

Pattern: ^[0-9]+$

Example:

"1000000"

fundingSource · Wire · object · required

Wire funding source. The issuer wires fiat to the provider using the returned funding instructions.

Wire

ACH Debit

Same-Day ACH Debit

Grid Internal Account

Provider Internal Balance

Show child attributes

destination · object · required

Account that receives the minted stablecoin. External and Grid-managed accounts are represented as a single account reference, matching the accountId pattern used elsewhere in the API; the id prefix (ExternalAccount: or InternalAccount:) determines which. In the initial Brale-backed flow this must reference an active Spark external account.

Show child attributes

description · string

Optional platform-provided operation description.

Maximum string length: 1024

Example:

"Initial program funding mint"

Response

201

application/json

Mint operation created

id · string · required

System-generated stablecoin issuer operation identifier.

Example:

"StablecoinOperation:019542f5-b3e7-1d02-0000-000000000301"

stablecoinId · string · required

Stablecoin this operation belongs to.

Example:

"Stablecoin:019542f5-b3e7-1d02-0000-000000000002"

operationType · enum<string> · required

Stablecoin issuer operation type.

Available options: MINT, BURN

status · enum<string> · required

Stablecoin issuer operation lifecycle status.

Available options: CREATED, PENDING_FUNDING, PENDING_PROVIDER, PROCESSING, COMPLETED, FAILED, EXPIRED

amount · string · required

Operation amount in the stablecoin's smallest unit.

Example:

"1000000"

provider · enum<string> · required

Stablecoin provider backing the linked account, stablecoin, or operation.

Available options: BRALE

providerEnvironment · enum<string> · required

Provider environment derived from the authenticated Grid platform mode.

Available options: SANDBOX, PRODUCTION

stablecoinProviderAccountId · string · required

Stablecoin provider account link used for the operation.

Example:

"StablecoinProviderAccount:019542f5-b3e7-1d02-0000-000000000001"

createdAt · string<date-time> · required

Creation timestamp.

Example:

"2026-05-20T16:40:00Z"

updatedAt · string<date-time> · required

Last update timestamp.

Example:

"2026-05-20T17:10:00Z"

source · object

Source of a stablecoin operation, as reported on a StablecoinOperation. A single merged shape (superset of the mint funding source and burn source request variants) so the field is unambiguously deserializable regardless of operation type: externalAccountId is present for external-account funded mints, accountId for Grid internal account sources, and sourceTokenIdentifier/cryptoNetwork for provider internal balance sources.

Show child attributes

fundingInstructions · object

Provider funding instructions safe to show publicly. Present for wire-funded mint operations and external-source burn operations when available. The common fields below are always declared; the exact set of remaining fields is rail- and provider-specific (for example, wire instructions carry bank beneficiary/account/routing details while Spark and on-chain instructions carry a deposit address), so additionalProperties stays open to pass those through without a spec change per rail.

Show child attributes

Example:

{
  "rail": "SPARK",
  "network": "SPARK",
  "address": "spark1...",
  "valueType": "ACME"
}

destination · object

Destination of a stablecoin operation, as reported on a StablecoinOperation. A single merged (flat) shape so the field is unambiguously deserializable regardless of operation type: accountId identifies the receiving account (its ExternalAccount: / InternalAccount: prefix disambiguates external vs Grid-managed), and rail is present for burn (fiat payout) destinations and absent for mint destinations.

Show child attributes

estimatedDelivery · object

Static rail timing estimate for fiat redemption delivery. This is guidance, not a guaranteed arrival time.

Show child attributes

Example:

{
  "rail": "ACH_CREDIT",
  "amount": "100",
  "currency": "USD",
  "timing": "1-3 business days"
}

expiresAt · string<date-time>

Expiry for operations awaiting external funding.

Example:

"2026-05-27T16:40:00Z"

providerStatus · string

Sanitized provider status when available.

Example:

"pending"

failureReason · string

Stable internal failure code for terminal failed operations.

Example:

"PROVIDER_TRANSFER_FAILED"

description · string

Platform-provided operation description.

Example:

"Initial program funding mint"