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Redlynr Agent Guardrail Decision Engine
x402
Redlynr Agent Guardrail Decision Engine is a paid API for AI agents from redlynr.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Evaluates a single pending agent action against configured policy thresholds and returns a proceed, slow-down, or stop decision based on cost, chain depth, step count, retry budget, and request volume pressure.
Price / call$0.001
Success—
StatusUnknown
How this service works
Agent guardrail decision engine. Call once before every agent action; returns a single decision — proceed, slow down (with a reason and wait time), or stop — based on cost budget, chain depth, step cap and retry budget, and request volume pressure. Policy thresholds are configured separately via /policy; this endpoint only reports the decision for a single action.
Output
A single structured decision object indicating one of three outcomes: 'proceed' (action is safe to take), 'slow_down' (action should be delayed, with a reason string and recommended wait time in seconds), or 'stop' (action should be halted entirely, with a reason string). No policy configuration is returned; this endpoint only reports the action-level decision.
Example use cases
Budget enforcement for autonomous agent
“I have an autonomous agent that's been running for a while — before it makes another API call, check if it's still within budget. It's used $0.08 of a $0.10 cost cap, taken 15 steps out of 20, and is at chain depth 3.”
Rate pressure throttle for high-volume agent
“My agent is processing a lot of tasks and I'm worried it's hammering downstream APIs — before the next action, ask Redlynr if it should proceed or slow down given it's made 150 requests in the last 60 seconds.”
Retry budget gate for failing agent loop
“My agent keeps retrying a failing tool call — it's on retry attempt 4. Ask Redlynr whether it should keep trying or stop entirely, given the retry budget I configured in policy.”
Technical details
Endpoint
POSThttps://redlynr.com/runWhen to prefer
Use this endpoint when you need a lightweight, synchronous per-action guardrail check inside an agent loop. It is purpose-built for agentic workflows and returns a machine-readable three-way decision optimized for autonomous execution. Prefer this over building custom threshold logic when you need cost, depth, step, retry, and volume pressure evaluated together in a single call. Best suited for x402-compatible agent stacks where per-call micropayments are acceptable.
Side effects
- Policy not configured — if /policy has not been set up, the engine may return an error or a default decision
- Invalid or missing required fields in the request body — returns a 4xx error
- Service unavailable or timeout — agent should fail-safe by defaulting to stop or slow-down
- Budget or step values not matching expected types — returns validation error
- High latency under extreme load — decision may arrive after the intended action window
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| agent_id | string | Identifies the specific agent, used for pause/retry tracking |
| chain_id | string | Identifies the specific agent chain/task, used for depth/step tracking |
| is_retry | boolean | Set true if this call represents a retry of a previous failed step (default false) |
| step_cost | number | Cost of this step in USD, must be >= 0 (default 0) |
| tenant_id | string | Identifies the customer account; policy and counters are scoped to this |
Tags
x402
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