Api Endpoint

Grounded answer with citations

Ask a question and get a written answer with the sources it was drawn from. The engine searches its index, reads the pages and composes the answer, returning the citation list (title, URL, published date) alongside it so every claim can be checked. Model-backed: the answer text is generated, the citations are retrieved.

Open interactive test console

Offering

Provider: agent402.tools
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Web Search Research
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://agent402.tools/api/exa-answer
MIME type: application/json
First seen: 2026-10-16T01:50:53.972Z
Last seen: 2026-11-03T04:30:58.234Z
Tags: Web, Search, answer, citations, Agents

Website

Payment pricing

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

Payment option 1: 0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2: 0.01 USDC
Atomic price: 10000 · Network: eip155:137 · Asset: USDC · Scheme: exact
Payment option 3: 0.01 USDC
Atomic price: 10000 · Network: eip155:42161 · Asset: USDC · Scheme: exact
Payment option 4: 0.01 USDC
Atomic price: 10000 · Network: eip155:143 · Asset: USDC · Scheme: exact
Payment option 5: 0.01 USDC
Atomic price: 10000 · Network: eip155:43114 · Asset: USDC · Scheme: exact
Payment option 6: 10000 atomic units
Atomic price: 10000 · Network: eip155:1329 · Asset: 0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392 · Scheme: exact
Payment option 7: 0.011 USDC
Atomic price: 11000 · Network: eip155:10 · Asset: USDC · Scheme: exact
Payment option 8: 0.01 USDC
Atomic price: 10000 · Network: eip155:4663 · Asset: USDC · Scheme: exact
Payment option 9: 10000 atomic units
Atomic price: 10000 · Network: eip155:42220 · Asset: 0xcebA9300f2b948710d2653dD7B07f33A8B32118C · Scheme: exact
Payment option 10: 10000 atomic units
Atomic price: 10000 · Network: eip155:5042 · Asset: 0x3600000000000000000000000000000000000000 · Scheme: exact
Payment option 11: 0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: upto
Payment option 12: 0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 13: 100000 atomic units
Atomic price: 100000 · Network: stellar:pubnet · Asset: CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75 · Scheme: exact
Payment option 14: 10000 atomic units
Atomic price: 10000 · Network: algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k · Asset: 31566704 · Scheme: exact
Payment option 15: 0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 16: 10000 atomic units
Atomic price: 10000 · Network: eip155:5042 · Asset: 0x3600000000000000000000000000000000000000 · Scheme: exact

Raw x402 terms

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]

Observed health

Status: Healthy
Latest latency: 139 ms
Average latency: 233 ms
HTTP status: 204
Last checked: 2026-11-02T18:12:42.570Z
Reachability: 100% over 11 checks

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

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "properties": {
        "query": {
          "description": "The question to answer (max 1000 chars).",
          "type": "string"
        },
        "text": {
          "description": "Include the full page text of each citation (default false).",
          "type": "boolean"
        }
      },
      "required": [
        "query"
      ]
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST"
      ],
      "type": "string"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "properties": {
            "query": {
              "description": "The question to answer (max 1000 chars).",
              "type": "string"
            },
            "text": {
              "description": "Include the full page text of each citation (default false).",
              "type": "boolean"
            }
          },
          "required": [
            "query"
          ]
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "answer": {
              "type": "string"
            },
            "citationCount": {
              "type": "integer"
            },
            "citations": {
              "items": {
                "properties": {
                  "author": {},
                  "publishedDate": {
                    "type": "string"
                  },
                  "text": {},
                  "title": {
                    "type": "string"
                  },
                  "url": {
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "type": "array"
            },
            "fetchedAt": {
              "type": "string"
            },
            "query": {
              "type": "string"
            },
            "source": {
              "type": "string"
            }
          },
          "required": [
            "source",
            "fetchedAt",
            "query",
            "answer",
            "citationCount",
            "citations"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}