{
  "generated_at": "2026-04-24T15:01:35.625676+00:00",
  "slug": "x402-api-aubr-ai-api-chat-private",
  "title": "AUBRAI \u00b7 Private encrypted chat with HPKE-secured prompts",
  "url": "https://x402-api.aubr.ai/api/chat-private",
  "category": "ai",
  "summary": "Send HPKE-encrypted prompts to a private AI chat endpoint. Uses ephemeral X25519 key exchange for prompt privacy.",
  "seo": {
    "title": "AUBRAI Private Chat API | HPKE Encryption | x402",
    "description": "Send encrypted prompts to AI chat via HPKE. Pay 0.02 USDC per call on Base. Privacy-preserving LLM inference with ephemeral key exchange."
  },
  "use_cases": [
    "Submit sensitive prompts without exposing content to intermediaries",
    "Integrate privacy-preserving AI chat into agent workflows",
    "Encrypt proprietary queries before LLM processing"
  ],
  "ideal_buyer": "Agents and systems requiring confidential AI inference where prompt content must remain private from infrastructure providers.",
  "example_prompt": "Encrypt this medical diagnosis query using HPKE and send it to the private chat endpoint, then decrypt the response.",
  "example_request_body": {
    "hpke_ciphertext": "base64-encoded-encrypted-prompt",
    "hpke_ephemeral_public_key": "base64-encoded-x25519-public-key"
  },
  "risk_notes": [],
  "pricing_sanity": {
    "flag": "normal",
    "ratio": 2,
    "median_category_atomic": 10000
  },
  "pricing_review_required": false,
  "pricing_decimal_suspect": false,
  "trust_tier": "indexed_external",
  "accepts": [
    {
      "scheme": "exact",
      "network": "base",
      "pay_to": "0x44dc2dceaa22c7ef6b2e2cf2362fd3fb476b7c2c",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "max_amount_required_atomic": "20000",
      "max_timeout_seconds": 120,
      "verified": false,
      "hints": {
        "input": {
          "body": {
            "required": [
              "hpke_ciphertext",
              "hpke_ephemeral_public_key"
            ],
            "properties": {
              "hpke_ciphertext": {
                "type": "string",
                "description": "HPKE-encrypted prompt, base64-encoded"
              },
              "hpke_ephemeral_public_key": {
                "type": "string",
                "description": "Sender's one-time X25519 public key, base64-encoded"
              }
            }
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "requestId": "req_abc123",
            "hpke_response_ciphertext": "<base64-encrypted-response>",
            "hpke_response_ephemeral_key": "<base64-enclave-ephemeral-key>"
          }
        }
      }
    }
  ],
  "origin": {
    "slug": "x402-api-aubr-ai",
    "host": "x402-api.aubr.ai",
    "title": "AUBRAI x402 Payment Proxy",
    "description": "AUBRAI operates an x402 payment proxy service on mainnet. The origin provides API endpoints for payment processing and system health monitoring, with documentation available for integration.",
    "url": "https://x402-api.aubr.ai",
    "favicon": "https://x402-api.aubr.ai/favicon.ico?favicon.d93bcfb7.ico"
  },
  "json_ld": {
    "@id": "https://x402all.com/resource/x402-api-aubr-ai-api-chat-private",
    "url": "https://x402all.com/resource/x402-api-aubr-ai-api-chat-private",
    "name": "AUBRAI \u00b7 Private encrypted chat with HPKE-secured prompts",
    "@type": "WebAPI",
    "offers": {
      "url": "https://x402all.com/resource/x402-api-aubr-ai-api-chat-private",
      "@type": "Offer",
      "price": "0.02",
      "availability": "https://schema.org/InStock",
      "priceCurrency": "USDC",
      "priceSpecification": {
        "@type": "UnitPriceSpecification",
        "price": "0.020000",
        "unitText": "call",
        "priceCurrency": "USDC"
      },
      "eligibleCustomerType": "Agent",
      "additionalProperty": [
        {
          "@type": "PropertyValue",
          "name": "paymentNetwork",
          "value": "base"
        },
        {
          "@type": "PropertyValue",
          "name": "paymentAsset",
          "value": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        }
      ]
    },
    "sameAs": "https://x402-api.aubr.ai/api/chat-private",
    "@context": "https://schema.org",
    "provider": {
      "@id": "https://x402all.com/server/x402-api-aubr-ai",
      "url": "https://x402-api.aubr.ai",
      "name": "AUBRAI x402 Payment Proxy",
      "@type": "Organization"
    },
    "identifier": "x402-api-aubr-ai-api-chat-private",
    "description": "Send encrypted prompts to AI chat via HPKE. Pay 0.02 USDC per call on Base. Privacy-preserving LLM inference with ephemeral key exchange.",
    "potentialAction": {
      "@type": "BuyAction",
      "target": "https://axon402.com/test-buy?resource=x402-api-aubr-ai-api-chat-private",
      "description": "Test-buy this endpoint on AXON"
    },
    "applicationCategory": "ai"
  },
  "axon_deep_link": "https://axon402.com/test-buy?resource=x402-api-aubr-ai-api-chat-private"
}