KushBitx AgentProof — USDC Payment Verification

x402

KushBitx AgentProof — USDC Payment Verification is a paid API for AI agents from kushbitx.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Verifies a Base chain USDC transaction by checking its hash, confirming sender/receiver, expected amount, and screening for token risk before an agent proceeds with a payment.

Price / call$0.01

Seller volume →—

Success—

StatusUnknown

How this service works

Free protected spending policies for AI agents, plus pay-per-call Base transaction preflight, token risk and USDC payment verification. JavaScript SDK available on npm.

Output

Returns a JSON object containing a verdict with a decision field (e.g. 'VERIFIED') and a boolean verified flag, a list of transfer events found on-chain, and the number of block confirmations. The agent can use this to gate downstream actions on payment success.

Example use cases

Agent payment gate before service delivery

“I need you to check that transaction 0x4f3a...9e1b on Base was a valid USDC payment of 2.50 from 0xBuyerWallet to 0xMyShopWallet before you send them the access code.”

Automated invoice reconciliation bot

“We just got a payment notification — can you verify that Base tx 0xd7c2...44fa sent exactly 100.00 USDC from 0xClientAddress to 0xOurTreasury so I can mark invoice #2041 as paid?”

Token-risk screening before agent payout

“Before the agent sends a payout, screen this transaction hash 0x91be...77cc on Base — confirm it's coming from 0xUserWallet to 0xAgentPool for 0.50 USDC and flag any token risk issues.”

Technical details

Endpoint

POSThttps://kushbitx.com/api/verify-payment?utm_source=zero.xyz

When to prefer

Use this endpoint when an AI agent or automated workflow needs to gate an action (fulfillment, access grant, payout) on confirmed receipt of a USDC payment on Base. It combines transaction existence check, amount/address verification, and token-risk screening in a single call, making it ideal for agentic payment pipelines where trust in the incoming payment must be established before proceeding.

Side effects

Transaction hash not found or not yet confirmed — returns unverified verdict
Amount mismatch — transaction found but USDC value differs from expectedAmount
Address mismatch — sender or receiver does not match expectedFrom/expectedTo
Token risk flag raised — transaction involves a screened or suspicious token
Invalid transaction hash format — 400 error if txHash does not match 0x hex pattern
Chain not supported — only 'base' is accepted; other chains return validation error
Insufficient confirmations — transaction exists but has too few block confirmations

Input

Schema · Request body

Field	Type	Description
chain	string
txHash	string
expectedTo	string
expectedFrom	string
expectedAmount	string	Expected USDC amount.

Output

Schema · Response

{
  "type": "json",
  "example": {
    "verdict": {
      "decision": "VERIFIED",
      "verified": true
    },
    "transfers": [],
    "confirmations": 1
  }
}

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How this service works

Free protected spending policies for AI agents, plus pay-per-call Base transaction preflight, token risk and USDC payment verification. JavaScript SDK available on npm.

Output

Example use cases

Agent payment gate before service delivery

“I need you to check that transaction 0x4f3a...9e1b on Base was a valid USDC payment of 2.50 from 0xBuyerWallet to 0xMyShopWallet before you send them the access code.”

Automated invoice reconciliation bot

“We just got a payment notification — can you verify that Base tx 0xd7c2...44fa sent exactly 100.00 USDC from 0xClientAddress to 0xOurTreasury so I can mark invoice #2041 as paid?”

Token-risk screening before agent payout

“Before the agent sends a payout, screen this transaction hash 0x91be...77cc on Base — confirm it's coming from 0xUserWallet to 0xAgentPool for 0.50 USDC and flag any token risk issues.”

Technical details

Endpoint

POSThttps://kushbitx.com/api/verify-payment?utm_source=zero.xyz

When to prefer

Side effects

Transaction hash not found or not yet confirmed — returns unverified verdict
Amount mismatch — transaction found but USDC value differs from expectedAmount
Address mismatch — sender or receiver does not match expectedFrom/expectedTo
Token risk flag raised — transaction involves a screened or suspicious token
Invalid transaction hash format — 400 error if txHash does not match 0x hex pattern
Chain not supported — only 'base' is accepted; other chains return validation error
Insufficient confirmations — transaction exists but has too few block confirmations

Input

Schema · Request body

Field	Type	Description
chain	string
txHash	string
expectedTo	string
expectedFrom	string
expectedAmount	string	Expected USDC amount.

Output

Schema · Response

{
  "type": "json",
  "example": {
    "verdict": {
      "decision": "VERIFIED",
      "verified": true
    },
    "transfers": [],
    "confirmations": 1
  }
}