x402-api.aubr.ai

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1

0.03 USDC
Atomic price: 30000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "30000",
    "payTo": "0x44dC2dceaA22c7EF6B2E2cF2362Fd3FB476b7c2C"
  }
]

Observed health

Status

Healthy

Latest latency

167 ms

Average latency

224 ms

HTTP status

402

Last checked

2026-11-04T02:19:59.665Z

Reachability

100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "bodyType": {
      "type": "string",
      "enum": [
        "json",
        "form-data",
        "text"
      ]
    },
    "body": {
      "properties": {
        "question": {
          "type": "string",
          "description": "Research question"
        },
        "mode": {
          "type": "string",
          "enum": [
            "fast",
            "deep"
          ],
          "description": "Search depth"
        },
        "sourceProfile": {
          "type": "string",
          "enum": [
            "fast-default",
            "deep-default",
            "clinical",
            "paperclip",
            "litqa-recall"
          ],
          "description": "Optional source profile. Omit for Aubrai defaults."
        },
        "tags": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Tracked terms for radar-style searches. With tagMode=fanout, each tag is searched separately."
        },
        "tagMode": {
          "type": "string",
          "enum": [
            "fanout",
            "combined"
          ],
          "description": "Use fanout for independent tracked-term searches; use combined only when tags must be searched together."
        },
        "allowSourceExpansion": {
          "type": "boolean",
          "description": "Deprecated / ignored — Exa is a single index. Use scope for deliberate scoping."
        },
        "maxResults": {
          "type": "number",
          "description": "Max results to return"
        },
        "perSourceLimit": {
          "type": "number",
          "description": "Deprecated / ignored — Exa is a single index (no per-source cap)."
        },
        "sources": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Deprecated / ignored — retrieval is one Exa index (already covers pubmed/arxiv/biorxiv/etc.). Use scope instead."
        },
        "scope": {
          "type": "string",
          "enum": [
            "preprints",
            "no-preprints",
            "trials"
          ],
          "description": "Opt-in scoping mapped to Exa domains: preprints (biorxiv/medrxiv/arxiv), no-preprints (exclude those), trials (clinicaltrials.gov). Omit for full index."
        },
        "retrievalProfile": {
          "type": "string",
          "enum": [
            "default",
            "litqa-recall"
          ],
          "description": "Optional retrieval profile: \"default\" or \"litqa-recall\"."
        },
        "privacyMode": {
          "type": "string",
          "description": "Optional plaintext privacy mode forwarded to Aubrai when provided."
        },
        "year": {
          "type": "string",
          "description": "Filter by publication year"
        },
        "date_from": {
          "type": "string",
          "description": "Start date filter (YYYY-MM-DD)"
        },
        "date_to": {
          "type": "string",
          "description": "End date filter (YYYY-MM-DD)"
        },
        "filterReferences": {
          "type": "boolean",
          "description": "Default true upstream — drop off-topic refs. Set false for raw/unfiltered refs (debug)."
        },
        "includeRejected": {
          "type": "boolean",
          "description": "Default false — when true, completed responses include rejectedReferences[] and relevance.reason on rejected refs."
        }
      },
      "required": [
        "question"
      ]
    }
  },
  "required": [
    "type",
    "bodyType",
    "body",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object"
    }
  },
  "required": [
    "type"
  ]
}