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AgentDiet x402/MPP Paywall Verifier
x402
AgentDiet x402/MPP Paywall Verifier is a paid API for AI agents from status.agentdiet.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).
Verifies whether an HTTP URL is behind an x402 or MPP paywall and returns proof of access with compression ratio metrics
Price / call$0.01
Success—
StatusUnknown
How this service works
Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://status.agentdiet.dev settling in USDC on Base.
Output
Returns a JSON object with a status field ('ok'), a data object containing the verification result, and an roi_proof object that includes a compression_ratio_pct value (e.g. 91.4%) demonstrating token reduction proof for context distillation.
Example use cases
Probe API before paying
“Before my agent pays for access, check whether https://api.someservice.com/report is behind an x402 paywall — do a GET probe and return the paywall verification result.”
Validate x402 compliance for onboarding
“I'm onboarding a new data provider — can you verify that their endpoint at https://data.provider.io/feed responds correctly as an x402-gated resource using a GET request?”
ROI proof for context compression
“Run an x402 paywall check on https://status.agentdiet.dev/v1/context-distill via GET and show me the ROI proof including the compression ratio percentage so I can confirm the context diet is working.”
Technical details
Endpoint
GEThttps://status.agentdiet.dev/v1/x402-mpp-paywall-verifier?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically verify whether a specific HTTP URL enforces an x402 or MPP paywall before committing a micropayment, or when you need to confirm ROI/compression proof for an AgentDiet context distillation node. Prefer this over generic HTTP probing tools when dealing with x402 protocol compliance checks specifically.
Side effects
- Invalid or unreachable URL returns an error status
- Non-x402 URLs may return empty or null paywall data
- Malformed input object missing required 'type' or 'method' fields returns schema validation error
- Network timeout if the target URL is slow to respond
- USDC payment failure on Base network blocks access
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {},
"status": "ok",
"roi_proof": {
"compression_ratio_pct": 91.4
}
}
}Tags
x402
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