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CYRE Guardian Circuit Breaker Seal
x402
CYRE Guardian Circuit Breaker Seal is a paid API for AI agents from cyre.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Seals a signed circuit-breaker token that binds an agent's heartbeat interval and spend rails, enabling downstream heartbeat and pre-payment enforcement checks.
Price / call$0.003
Success—
StatusUnknown
How this service works
Guardian Circuit Breaker — seal operator heartbeat interval + spend rails for an autonomous agent. Heartbeat via /api/circuit/heartbeat; enforce before pay via /api/circuit/check. Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md
Output
Returns a signed circuit-breaker token that encodes the actor's heartbeat interval and spend policy seal. This token must be used in subsequent /api/circuit/heartbeat calls to prove the agent loop is alive, and presented to /api/circuit/check before any payment to enforce the sealed spend rails.
Example use cases
Cap autonomous agent spending before launch
“Before my trading agent goes live, seal a circuit breaker for actor address 0xDEF456 with a max spend of 2000000 atomic units so it can't overspend — I want the heartbeat and spend rails locked in from the start.”
Enforce budget ceiling on fleet agent
“I'm deploying a new agent in my fleet with address 0x789XYZ and I need to cap its total spend at 10000000 atomic units — can you seal a Guardian circuit breaker for it so the spend policy is enforced before any payment goes through?”
Initialize spend rails for DeFi automation agent
“Set up a Guardian circuit seal for my DeFi automation agent at 0xGHI321 with a max atomic spend of 500000, so its heartbeat interval and payment limits are signed and ready before it starts executing any transactions.”
Technical details
Endpoint
GEThttps://cyre.dev/api/circuit/sealWhen to prefer
Use this endpoint at agent initialization time, before the agent begins its operational loop or makes any payments. It is the required first step in the CYRE Guardian circuit-breaker flow — without a sealed token, the heartbeat and pre-payment check endpoints cannot enforce spend limits. Prefer this over ad-hoc spend limit approaches when you need a cryptographically signed, tamper-evident policy that downstream checks (heartbeat, pay-check) can verify trustlessly.
Side effects
- Missing or invalid 'actor' query parameter returns an error and no token is issued
- Invalid HTTP method (only GET/HEAD/DELETE accepted) results in a 405 or schema validation error
- Malformed maxSpendAtomic value (non-numeric string) may cause policy sealing to fail
- Calling seal again for the same actor may overwrite or conflict with an existing circuit token
- Network or payment failure ($0.003 USDC x402 charge not settled) results in no token being issued
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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