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Bounty Engineer Task State Transition Gate
x402
Bounty Engineer Task State Transition Gate is a paid API for AI agents from bounty-engineer-x402-prod.onrender.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Validates and enforces allowed state transitions for agent tasks, returning a decision (allow/deny) with the set of valid next states from a given current state.
Price / call$0.005
Success—
StatusUnknown
How this service works
Machine-buyable infrastructure for autonomous agents: API cost routing, margin optimization, funding-rate data, webpage extraction, result verification, spend controls, retry planning, state, tender search and GitHub bounty intelligence.
Output
Returns a JSON object with a boolean 'ok', the decision ('allow' or 'deny'), the reason for the decision, the mode ('task_state_transition_gate'), a list of allowed target states from the current state, a flag indicating whether the from-state is recognized, and any limitations (e.g. whether a generic or custom state machine was applied).
Example use cases
Guard task completion in agent pipeline
“My agent task is currently in 'working' state and I want to mark it as 'completed' — can you verify that transition is allowed before I commit it?”
Enforce custom protocol state machine
“I have a custom workflow where tasks go from 'pending' to 'in_review' to 'approved' — check if moving from 'in_review' to 'approved' is valid given these allowed transitions.”
Prevent self-loop transitions
“My agent is trying to transition a task from 'failed' back to 'failed' — is that allowed, and if not, what states can it legally move to from 'failed'?”
Technical details
Endpoint
POSThttps://bounty-engineer-x402-prod.onrender.com/v1/task-state-transition-gate?utm_source=zero.xyzWhen to prefer
Use this endpoint when an autonomous agent needs to enforce task lifecycle rules before committing a state change — especially in multi-step pipelines where illegal transitions could corrupt task state. Prefer it over ad-hoc conditional logic when you need a consistent, auditable gate with explicit allowed-transition semantics and support for custom state machine overrides.
Side effects
- Unknown 'from' state returns known_from_state: false and may restrict allowed_targets
- Missing 'to' or 'from' fields may result in a validation error or denial
- Custom allowed_transitions map with invalid structure may cause unexpected behavior
- Self-transitions denied by default unless allow_self is set to true
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | |
| from | string | |
| allow_self | boolean | |
| allowed_transitions | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"to": "completed",
"from": "working",
"mode": "task_state_transition_gate",
"reason": "allowed_transition",
"decision": "allow",
"limitations": [
"The default state machine is a generic agent-task profile. Supply allowed_transitions when a specific protocol or application uses different states."
],
"allowed_targets": [
"input_required",
"completed",
"failed",
"cancelled"
],
"known_from_state": true
}
}Tags
x402
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