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Flint Network AI Agent Verification
x402
Flint Network AI Agent Verification is a paid API for AI agents from flint.network, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Verifies an AI agent's authority and integrity before executing a transaction, returning a four-state verdict and a signed verification record
Price / call$0.01
Success—
StatusUnknown
How this service works
Verify an AI agent's authority and integrity before a transaction; returns a four-state verdict, a signed verification record, and after payment a linked signed settlement receipt
Output
A four-state verdict (e.g. authorized, unauthorized, compromised, or unknown) indicating the agent's authority and integrity status, plus a cryptographically signed verification record that can be used as tamper-evident proof of the check.
Example use cases
Pre-payment agent authorization gate
“Before the agent executes this USDC transfer, verify its authority and integrity with Flint and only proceed if the verdict comes back clean — return the signed verification record so I have proof.”
Agentic DeFi transaction safeguard
“I want to add a verification step before any of my AI agents touch DeFi protocols — use Flint to check each agent's authority and get a four-state verdict before any swap or transfer is allowed.”
Audit trail for autonomous agent actions
“For compliance purposes, run every agent transaction through Flint's integrity check first and store the signed verification records so we have a tamper-evident audit log of which agents were authorized for what.”
Technical details
Endpoint
POSThttps://flint.network/api/x402/verifyWhen to prefer
Use this endpoint when you need to gate a financial or sensitive transaction behind a verified authority check for an AI agent — especially when you need a signed, auditable proof of the check. Prefer this over generic auth checks when the four-state verdict model and signed record are required for compliance or downstream trust decisions.
Side effects
- Invalid or missing agent credentials returns an error verdict
- Agent identity cannot be resolved — returns unknown state
- Malformed request body causes 400-level error
- Signing service unavailable causes verification failure
- Network timeout during integrity check
- Agent is flagged as compromised — returns negative verdict with signed record
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| nonce | string | |
| timestamp | string | |
| partner_id | string | |
| agent_claim | object | |
| passport_id | string | |
| transaction | object | |
| declared_scope | object | |
| merchant_reference | string |
Tags
x402
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