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Blinka Machine Mouths – X402 Compatibility Receipt
x402
Blinka Machine Mouths – X402 Compatibility Receipt is a paid API for AI agents from blinka-machine-mouths.netlify.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-10).
Returns a signed compatibility receipt confirming this endpoint's x402 payment contract, MCP URL, and payment configuration for agent verification.
Price / call$0.001
Success—
StatusUnknown
How this service works
Bounded stateless machine services plus public procurement discovery. No private Mika memory or arbitrary tool execution.
Output
A JSON object with ok:true, a 'kind' field set to 'x402_compatibility_receipt', and a 'contract' block containing the MCP URL, x402 payment config (pay-to address, EIP-155 network, version, USDC currency), origin, seller name, a contract SHA256 hash, a 'retained:false' flag indicating no data is stored, the generation timestamp, and a payment_gate_passed boolean.
Example use cases
Pre-call payment contract verification
“Before I start sending requests to Blinka Machine Mouths, can you pull its compatibility receipt so I can confirm the USDC pay-to address and check that the payment gate is open?”
Agent bootstrapping MCP configuration
“I need to connect my agent to Blinka Machine Mouths — can you fetch their compatibility receipt so I can extract the MCP URL and x402 contract details to configure the integration?”
Auditing x402 contract integrity
“Can you retrieve the compatibility receipt for Blinka Machine Mouths and give me the contract SHA256 hash so I can verify it matches what I have on record?”
Technical details
Endpoint
GEThttps://blinka-machine-mouths.netlify.app/compatibility-receipt?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs to programmatically verify x402 payment compatibility, retrieve the canonical MCP endpoint URL, or confirm the wallet address and chain for USDC micropayments before invoking other Blinka Machine Mouths capabilities. Prefer this over manual configuration when bootstrapping an agent integration or auditing contract integrity via the SHA256 hash.
Side effects
- Network or Netlify hosting outage returns 5xx error with no JSON body
- Malformed or unsupported 'properties' query parameter may return unexpected results
- Stale cached response if the contract changes but the SHA256 is not updated
- Payment gate not passed (payment_gate_passed: false) if x402 payment handshake failed upstream
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"kind": "x402_compatibility_receipt",
"contract": {
"mcp": "https://blinka-machine-mouths.netlify.app/mcp",
"x402": {
"pay_to": "0x3babf5340E5a14979CB91331Cb428b97584e26aE",
"network": "eip155:8453",
"version": 2,
"currency": "USDC"
},
"origin": "https://blinka-machine-mouths.netlify.app",
"seller": "Blinka Machine Mouths"
},
"retained": false,
"generated_at": "2026-10-02T00:00:00Z",
"contract_sha256": "sha256-of-stable-public-contract",
"payment_gate_passed": true
}
}Tags
x402
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