{"uid":"cap_XK7RWukLhNDNJYNW0ZDeY","slug":"tollex-usdg-authorization-state-lookup-788b1bc5","name":"Tollex USDG Authorization State Lookup","description":"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.","url":"https://api.tollex.org/tools/usdg_authorization_state?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"nonce":{"type":"string","pattern":"^0x[0-9a-fA-F]{64}$"},"authorizer":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$"}}},"responseSchema":{"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}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0079","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.0079/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0079","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0079","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_7XimQlIJY-s-h6tL-4_fZ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0079","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks the current authorization state of a USDG payment nonce for a given authorizer address on Robinhood Chain","exampleAgentPrompt":"Check whether the USDG payment nonce 0x3a1b2c...d4e5f6 was authorized by the wallet 0xAbCd...1234 on Tollex — I need to confirm this payment went through before releasing the next task.","exampleUseCases":[{"title":"Reconcile uncertain agent payment","prompt":"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?"},{"title":"Audit agent spend authorization","prompt":"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."},{"title":"Debug stalled x402 payment","prompt":"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."}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:47:48.875Z","isFirstParty":false,"canonicalSlug":"tollex-usdg-authorization-state-lookup-788b1bc5"}