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Tollex USDG Authorization State Lookup
x402
Tollex USDG Authorization State Lookup is a paid API for AI agents from api.tollex.org, paid per call via x402, $0.0079/call, status unknown (last checked 2026-10-11).
Checks the current authorization state of a USDG payment nonce for a given authorizer address on Robinhood Chain
Price / call$0.0079
Success—
StatusUnknown
How this service works
Tollex lets software agents buy APIs and tools under rules you set: it finds a capability that fits, checks your policy before anything is signed, pays with x402 in USDC on Base or USDG on Robinhood Chain, reconciles uncertain payments and returns a signed receipt.
Output
Returns the current authorization state for the given USDG payment nonce and authorizer address, indicating whether the payment has been authorized, is pending, or has failed — enabling agents to reconcile uncertain payments and decide whether to proceed or retry.
Example use cases
Reconcile uncertain agent payment
“My agent submitted a USDG payment with nonce 0x4f8a2b1c...e7d9 but I'm not sure it was confirmed — can you check the authorization state for authorizer 0x9Fa3...C801 so I know whether to retry?”
Audit agent spend authorization
“Before my agent pipeline continues, verify that the USDG authorization with nonce 0x00112233...aabbcc was approved by the authorizer wallet 0x1A2B...3C4D — I need a green light before the next step.”
Debug stalled x402 payment
“Our autonomous workflow stalled after a USDG payment on Robinhood Chain — look up the authorization state for nonce 0xdeadbeef...cafe00 under authorizer 0xF00d...B4B3 so we can figure out what happened.”
Technical details
Endpoint
POSThttps://api.tollex.org/tools/usdg_authorization_state?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to verify or reconcile the authorization state of a specific USDG payment nonce on Robinhood Chain, particularly after an x402 payment by an autonomous agent that may be uncertain or unconfirmed. Prefer this over generic blockchain explorers when you need a structured, policy-aware response in the Tollex economic control plane context.
Side effects
- Invalid nonce format (not a 0x-prefixed 64-character hex string) returns validation error
- Invalid authorizer address (not a valid EVM address) returns validation error
- Nonce not found on Robinhood Chain returns unknown state or not-found response
- Network or RPC connectivity issues to Robinhood Chain may cause timeouts
- Payment not yet finalized may return a pending/uncertain state
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| nonce | string | |
| authorizer | string |
Output
Schema · Response
{
"type": "json",
"example": {
"tool": {
"id": "usdg_authorization_state",
"version": "1.0.0",
"provider": "tollex.robinhood-chain"
},
"result": {
"used": false,
"nonce": "0x7a3d7400b27830f4f91c2c16a082486d67c1befecaec2f53b33f1f35d5b62036",
"authorizer": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168"
},
"evidence": [],
"untrustedOutput": false
}
}Tags
x402
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