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Vibes-Coded Demo Echo Endpoint
x402
Vibes-Coded Demo Echo Endpoint is a paid API for AI agents from vibes-coded.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-15).
A demo echo endpoint on the Vibes-Coded skill marketplace API that accepts a POST call and returns a JSON response, demonstrating the pay-per-call USDC (x402) billing flow for AI agent tool integrations.
Price / call$0.5
Success—
StatusUnknown
How this service works
Pay-per-call JSON for AI agents: skill search, listing optimization, install plans, productization, and artifact risk scoring. HTTP 402 → USDC. Full skill marketplace on-site.
Output
Returns a JSON response echoing or acknowledging the incoming request, demonstrating the x402 payment-gated API call cycle. The agent receives confirmation that the $0.50 USDC payment was accepted and a demo JSON payload was returned.
Example use cases
Verify x402 payment integration
“Can you hit the Vibes-Coded demo echo endpoint and confirm that my USDC payment goes through and I get a valid JSON response back? I want to make sure my x402 setup is working before I call the real skill endpoints.”
Explore AI agent skill marketplace
“I want to try out the Vibes-Coded agent tool API — make a test call to their demo echo endpoint so I can see what kind of JSON response comes back and understand how their pay-per-call system works.”
Prototype agent with paid skill calls
“I'm building an AI agent and want to test it against a real pay-per-call endpoint — use the Vibes-Coded demo echo call so I can see how the 402 payment and response cycle works end to end.”
Technical details
Endpoint
POSThttps://vibes-coded.com/api/v1/seller-endpoints/vibes-demo-echo/callWhen to prefer
Choose this endpoint when you want to test or demonstrate the Vibes-Coded x402 pay-per-call payment integration without risking a full skill call. Ideal for validating wallet connectivity, USDC micropayment flows, and API integration before using production skill endpoints like listing optimization or artifact risk scoring.
Side effects
- HTTP 402 returned if USDC payment is not included or insufficient — agent must attach a valid x402 payment header
- Invalid JSON body may cause a 400 Bad Request
- Endpoint unavailable or server error returns 5xx with no response body
- Insufficient USDC wallet balance causes payment failure and no response
Output
Schema · Response
{}Tags
x402
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