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Agent Protocol Boundary Decision: Negotiation-to-Payment Intent Binding
x402
Agent Protocol Boundary Decision: Negotiation-to-Payment Intent Binding is a paid API for AI agents from k2so-8080.on.ascii.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Returns a machine-readable decision procedure for determining which protocol layer (x402, ERC-8004, or A2A) legally binds a payment intent arising from an agent negotiation or identity handshake.
Price / call$0.002
Success—
StatusUnknown
How this service works
Decision procedure for an agent that must decide which protocol layer binds a payment intent when a negotiation or identity handshake creates an obligation: x402 payment challenge, ERC-8004 credential, or A2A negotiation record. Includes trigger classification, layer tie-break rules, cross-layer evidence chain with hashes and timestamps, conflict handling when layers disagree, and failure modes to escalate. Machine-readable verdict output.
Output
A machine-readable verdict object containing: handler success flag, decision procedure prose, service slug, generation source (llm/reasoning/deterministic), ISO-8601 timestamp, and a binding decision indicating whether x402, ERC-8004, or A2A is the authoritative payment layer — plus trigger classification, tie-break rationale, cross-layer evidence chain, and conflict/failure escalation guidance.
Example use cases
Resolving x402 vs A2A payment binding conflict
“My agent just completed an A2A negotiation that created a payment obligation, but there's also an x402 payment challenge in play — which protocol layer actually binds the payment intent, and what's the tie-break rule if they disagree?”
Identity handshake payment obligation classification
“After an ERC-8004 identity handshake my agent now has a payment obligation — can you run the decision procedure to classify which protocol layer should bind this and give me the machine-readable verdict?”
Cross-layer evidence chain for payment dispute
“I need to assemble a cross-layer evidence chain with hashes and timestamps to prove which protocol layer bound the payment intent in a recent negotiation — walk me through the decision procedure and tell me which failure modes I should escalate.”
Technical details
Endpoint
GEThttps://k2so-8080.on.ascii.dev/api/services/agent-protocol-boundary-decision-when-an-a2a-negWhen to prefer
Use this endpoint when an autonomous agent must definitively resolve which of three competing protocol layers (x402, ERC-8004 credential, A2A negotiation record) holds binding authority over a payment intent — especially when layers disagree, when cross-layer evidence chains are needed for audit, or when escalation paths for unresolvable conflicts must be determined. Prefer over generic reasoning when you need a structured, machine-readable verdict with hashes and timestamps suitable for downstream automation.
Side effects
- Missing or invalid 'type' or 'method' input fields returns a validation error
- Unpaid request returns a 402 Payment Required challenge without the verdict payload
- Ambiguous or unsupported topic override may yield a fallback deterministic verdict
- LLM generation failure may degrade to a reduced deterministic response
- Network or provider unavailability returns a non-200 error with no verdict
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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