/v1/extend-inboxAdd purchased time to the current expiry of one active receive-only inbox. The same inbox id, address, messages, read/delete capability, and limits remain in place. Deleted or expired inboxes cannot be revived, and prepaid expiry cannot exceed 30 days from the extension time.
{
"additionalProperties": false,
"properties": {
"idempotency_key": {
"maxLength": 128,
"minLength": 16,
"type": "string"
},
"input": {
"additionalProperties": false,
"properties": {
"additional_duration_seconds": {
"enum": [
3600,
86400,
604800
],
"type": "integer"
},
"expected_expires_at": {
"pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}(\\.[0-9]{1,3})?Z$",
"type": "string"
},
"extension_authorization": {
"pattern": "^aue_[A-Za-z0-9_-]{43}$",
"type": "string"
},
"inbox_id": {
"pattern": "^inb_[A-Za-z0-9_-]{22,64}$",
"type": "string"
}
},
"required": [
"inbox_id",
"extension_authorization",
"expected_expires_at",
"additional_duration_seconds"
],
"type": "object"
},
"input_schema_digest": {
"enum": [
"sha256:f19bd6463ce1c5123385231dd60984264a5a94587383e1351083817dcc1cba4f"
]
},
"offer_id": {
"enum": [
"inbox.extend"
]
},
"offer_revision": {
"enum": [
"extend-duration-r3"
]
},
"offer_revision_digest": {
"enum": [
"sha256:99391570fee1ffa5752f5c02582e773fbf9f96d379f9e5859ef9d24af58d6832"
]
},
"output_schema_digest": {
"enum": [
"sha256:4ac04a385731095a6fa7f1de251456ee3da396fe6a1876483b36eadd23fad09c"
]
}
},
"required": [
"offer_id",
"offer_revision",
"offer_revision_digest",
"input_schema_digest",
"output_schema_digest",
"input",
"idempotency_key"
],
"type": "object"
}{
"inspect_url": "/v1/invocations/ausca-discovery-example",
"invocation": {
"invocation_id": "ausca-discovery-example",
"offer_revision_digest": "sha256:99391570fee1ffa5752f5c02582e773fbf9f96d379f9e5859ef9d24af58d6832",
"output": {
"extension": {
"additional_duration_seconds": 86400,
"address": "inbox+0123456789abcdef0123456789abcdef01234567.89abcdef01234567@mail.ausca.com",
"expires_at": "2026-09-02T01:00:00.000Z",
"extended_at": "2026-09-01T00:30:00.000Z",
"inbox_id": "inb_0123456789abcdef0123456789abcdef01234567",
"previous_expires_at": "2026-09-01T01:00:00.000Z",
"schema": "ausca.agent_inbox.extension.v1",
"state": "active"
}
},
"output_digest": "sha256:66004d562e7ec85c0d5cf8504ed3d87e707671db55e74c2cd90ee1b59b3a72bd",
"receipt_ref": {
"public_url": "https://runx.ai/r/0000000000000000000000000000000000000000000000000000000000000000",
"type": "receipt",
"uri": "runx:receipt:discovery-example"
},
"state": "succeeded",
"updated_at": "2026-01-01T00:00:00Z"
},
"status": "accepted"
}