xAudit

What it does

POST content with a claim_type and receive a validation verdict, a confidence score, and a signed certificate of the audit result. Use before consuming third-party API output or LLM-generated facts — verify integrity before injecting into your agent's reasoning loop. The signed certificate lets downstream consumers verify the audit independently. Pairs well with SchemaGate (structural validation) and PromptGuard (injection detection) for end-to-end response safety.

When to use it

• Validate facts in LLM-generated content before publishing
• Audit third-party API responses before consuming downstream
• Gate tool-call outputs against factual claims in a research workflow
• Generate signed audit certificates for compliance trails

Request schema

{
  "content": "Australia's capital is Sydney.",
  "claim_type": "factual"
}

Response schema

{
  "verdict": "invalid",
  "confidence": 0.97,
  "reasoning": "Australia's capital is Canberra, not Sydney.",
  "certificate": "cert_8a3f...signed",
  "payment_hash": "0x..."
}

Code example — TypeScript via MCP

Install the MCP server once; all 22 services become tool calls.

// Configure @melis-ai/x402-tools-mcp in your MCP client
// Then call the tool:

const result = await mcpClient.callTool("xaudit", {
  "content": "Australia's capital is Sydney.",
  "claim_type": "factual"
});

console.log(result);
// ["verdict","confidence","reasoning","certificate","payment_h...

Code example — Python via direct HTTP

import requests

# x402 payment header must be set by your wallet client
# See x402.org for client libraries

headers = {
    "Content-Type": "application/json",
    "x-payment": "<signed-x402-payment-header>",
}

resp = requests.post(
    "https://xaudit.melis.ai/validate",
    json={
      "content": "Australia's capital is Sydney.",
      "claim_type": "factual"
    },
    headers=headers,
)
print(resp.json())

Code example — curl with internal key bypass

For testing with an issued internal key (skips x402 payment flow):

curl -X POST https://xaudit.melis.ai/validate \
  -H "Content-Type: application/json" \
  -H "x-internal-key: YOUR_KEY" \
  -d '{"content":"Australia's capital is Sydney.","claim_type":"factual"}'

How is this different from alternatives?

Related services

FAQ