SEO Backlink Records

SEO API documentation for REST and MCP, generated from the implemented API contract.

API selector

Backlinks & Authority

API overview

Bounded backlinks projection from the DataForSEO backlink index. Preserve target kind and provider scope. Proprietary rankings are not Google ratings or measured traffic. No pagination or additional provider calls. Unapproved costs prevent execution.

Try this API

Endpoint

/api/skill-api/v1/skills/seo-backlink-records/run

MCP method

nexscope_seo_backlink_records

Authentication

All run endpoints require a user API key. Send it as a bearer token in the Authorization header.

Authorization: Bearer nk-xxxxxxxxxxxxxxxxx

Missing or invalid API keys return an authentication error. Manage keys from .

POST/api/skill-api/v1/skills/seo-backlink-records/run

Run an API

Send a JSON request body using the parameters described below.

Slug	`seo-backlink-records`
Headers	`Authorization: Bearer nk-...` `Content-Type: application/json`
Request body	API-specific JSON object.
Response body	Complete HTTP envelope, including code and data.

Status codes

Code	Description
200	HTTP request completed. Check JSON code; only 0 indicates business success or acceptance.
400	Request JSON or required API parameters are invalid.
401	API key is missing, invalid, or cannot be matched to a user.
5xx	API execution or upstream service failed.

Example request

curl -X POST https://api.nexscope.ai/api/skill-api/v1/skills/seo-backlink-records/run \
  -H "Authorization: Bearer nk-xxxxxxxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{   "limit": 10,   "target": {     "kind": "DOMAIN",     "target": "nexscope.ai"   } }'

All categories/ Backlinks & Authority

POST/api/skill-api/v1/skills/seo-backlink-records/run

Run this API

Send a JSON request to execute this API and receive the documented response payload.

Open tester

Endpoint

Method	`POST`
Path	`/api/skill-api/v1/skills/seo-backlink-records/run`
Auth	`Bearer API key`
Content-Type	`application/json`

Request body

Name	Type	Required	Description
`limit`	`integer`	optional	Limit value used by this API operation. Default: 10 Minimum: 1 Maximum: 20
`target`	`object`	required	Target value used by this API operation.
`target.kind`	`string`	required	Kind value used by this API operation. Allowed: DOMAIN, PAGE
`target.target`	`string`	required	Target value used by this API operation. Minimum length: 1 Maximum length: 2048

Request example

{
  "limit": 10,
  "target": {
    "kind": "DOMAIN",
    "target": "nexscope.ai"
  }
}

Response body

Name	Type	Required	Description
`code`	`integer`	required	0 is a successful envelope; inspect data.status separately. Allowed: 0, 42008, 42009
`cost`	`string`	required	Elapsed processing milliseconds; not price. -1 for non-web context.
`data`	`object`	required	Data value used by this API operation.
`data.callId`	`string \| null`	optional	Call id value used by this API operation.
`data.completedAt`	`string \| integer \| null`	optional	Completed at value used by this API operation.
`data.coverage`	`object`	optional	Coverage value used by this API operation.
`data.coverage.missing`	`array`	optional	Missing value used by this API operation.
`data.coverage.missing[]`	`object`	required	Item in data coverage missing.
`data.coverage.missing[].field`	`string`	optional	Field value used by this API operation.
`data.coverage.missing[].reason`	`string`	optional	Reason value used by this API operation.
`data.coverage.status`	`string`	optional	Status value used by this API operation.
`data.requestedAt`	`string \| integer \| null`	optional	Requested at value used by this API operation.
`data.result`	`object \| null`	required	Result value used by this API operation.
`data.result.grouping`	`string`	required	Grouping value used by this API operation. Constant: provider_unique_referring_page
`data.result.inputTarget`	`object`	required	Input target value used by this API operation.
`data.result.inputTarget.kind`	`string`	required	Kind value used by this API operation. Allowed: DOMAIN, PAGE
`data.result.inputTarget.target`	`string`	required	Target value used by this API operation. Minimum length: 1 Maximum length: 2048
`data.result.items`	`array`	required	Items value used by this API operation. Minimum items: 0 Maximum items: 20
`data.result.items[]`	`object`	required	Item in data result items.
`data.result.items[].anchor`	`string \| null`	required	Anchor value used by this API operation.
`data.result.items[].dofollow`	`boolean \| null`	required	Dofollow value used by this API operation.
`data.result.items[].firstSeenAt`	`integer \| null`	required	First seen at value used by this API operation. Minimum: 0
`data.result.items[].fromUrl`	`string`	required	From url value used by this API operation.
`data.result.items[].isLost`	`boolean \| null`	required	Is lost value used by this API operation.
`data.result.items[].isNew`	`boolean \| null`	required	Is new value used by this API operation.
`data.result.items[].lastSeenAt`	`integer \| null`	required	Last seen at value used by this API operation. Minimum: 0
`data.result.items[].linksCount`	`integer \| null`	required	Links count value used by this API operation. Minimum: 0
`data.result.items[].missing`	`array`	required	Missing value used by this API operation. Minimum items: 0
`data.result.items[].missing[]`	`object`	required	Item in data result items[] missing.
`data.result.items[].missing[].field`	`string`	required	Field value used by this API operation.
`data.result.items[].missing[].reason`	`string`	required	Reason value used by this API operation. Allowed: UPSTREAM_FIELD_MISSING, UPSTREAM_FIELD_INVALID, DUPLICATE_UPSTREAM_ITEM, UPSTREAM_ITEM_MISSING
`data.result.items[].rank`	`integer \| null`	required	Rank value used by this API operation. Minimum: 0 Maximum: 1000
`data.result.items[].spamScore`	`integer \| null`	required	Spam score value used by this API operation. Minimum: 0 Maximum: 100
`data.result.items[].toUrl`	`string`	required	To url value used by this API operation.
`data.result.missing`	`array`	required	Missing value used by this API operation. Minimum items: 0
`data.result.missing[]`	`object`	required	Item in data result missing.
`data.result.missing[].field`	`string`	required	Field value used by this API operation.
`data.result.missing[].reason`	`string`	required	Reason value used by this API operation. Allowed: UPSTREAM_FIELD_MISSING, UPSTREAM_FIELD_INVALID, DUPLICATE_UPSTREAM_ITEM, UPSTREAM_ITEM_MISSING
`data.result.normalizedTarget`	`object`	required	Normalized target value used by this API operation.
`data.result.normalizedTarget.kind`	`string`	required	Kind value used by this API operation. Allowed: DOMAIN, PAGE
`data.result.normalizedTarget.target`	`string`	required	Target value used by this API operation. Minimum length: 1 Maximum length: 2048
`data.result.providerTotalCount`	`integer \| null`	required	Provider total count value used by this API operation. Minimum: 0
`data.result.requestedLimit`	`integer`	required	Requested limit value used by this API operation. Minimum: 1
`data.result.returnedCount`	`integer`	required	Returned count value used by this API operation. Minimum: 0
`data.result.sourceKind`	`string`	required	Source kind value used by this API operation. Constant: dataforseo_backlink_index
`data.result.sourceProduct`	`string`	required	Source product value used by this API operation. Constant: backlinks
`data.result.status`	`string`	required	Status value used by this API operation. Constant: live
`data.result.truncated`	`boolean`	required	Truncated value used by this API operation.
`data.schemaVersion`	`string \| null`	optional	Schema version value used by this API operation.
`data.source`	`string \| null`	optional	Source value used by this API operation.
`data.status`	`string`	optional	Status value used by this API operation. Allowed: SUCCESS, PARTIAL, EMPTY, PROCESSING, UNKNOWN, FAILED
`data.usage`	`object \| null`	optional	Usage value used by this API operation.
`data.usage.billingStatus`	`string \| null`	optional	Billing status value used by this API operation.
`data.usage.chargedCredits`	`string \| integer \| null`	optional	Charged credits value used by this API operation.
`msg`	`string \| null`	required	Available upstream msg/errmsg/message is preferred for success and failure; Chinese is translated to English. Missing successful message is null. Platform-only errors and task states use platform English. Message text never determines success or retry.
`time`	`string`	required	yyyy-MM-dd HH:mm:ss
`traceId`	`string \| null`	required	Trace id value used by this API operation.
`ts`	`string`	required	Epoch milliseconds; global long serializer.

Accepted processing response

code 0 confirms acceptance. Use data.callId to query the same request; processing is not completion.

Name	Type	Required	Description
`code`	`integer`	required	0 is a successful envelope; inspect data.status separately. Constant: 0
`cost`	`string`	required	Elapsed processing milliseconds; not price. -1 for non-web context.
`data`	`object`	required	Data value used by this API operation.
`data.callId`	`string \| null`	required	Call id value used by this API operation.
`data.reason`	`string`	required	Reason value used by this API operation. Constant: IN_PROGRESS
`data.retryable`	`boolean`	optional	Retryable value used by this API operation.
`data.status`	`string`	required	Status value used by this API operation. Constant: PROCESSING
`data.taskId`	`string \| null`	optional	Task id value used by this API operation.
`msg`	`string \| null`	required	Available upstream msg/errmsg/message is preferred for success and failure; Chinese is translated to English. Missing successful message is null. Platform-only errors and task states use platform English. Message text never determines success or retry.
`time`	`string`	required	yyyy-MM-dd HH:mm:ss
`traceId`	`string \| null`	required	Trace id value used by this API operation.
`ts`	`string`	required	Epoch milliseconds; global long serializer.

Error response

Name	Type	Required	Description
`code`	`integer`	required	0 is a successful envelope; inspect data.status separately.
`cost`	`string`	required	Elapsed processing milliseconds; not price. -1 for non-web context.
`data`	`object`	required	Data value used by this API operation.
`data.callId`	`string \| null`	required	Call id value used by this API operation.
`data.reason`	`string \| null`	required	Reason value used by this API operation.
`data.retryable`	`boolean`	optional	Retryable value used by this API operation.
`data.status`	`string \| null`	required	Status value used by this API operation.
`data.taskId`	`string \| null`	optional	Task id value used by this API operation.
`msg`	`string \| null`	required	Available upstream msg/errmsg/message is preferred for success and failure; Chinese is translated to English. Missing successful message is null. Platform-only errors and task states use platform English. Message text never determines success or retry.
`time`	`string`	required	yyyy-MM-dd HH:mm:ss
`traceId`	`string \| null`	required	Trace id value used by this API operation.
`ts`	`string`	required	Epoch milliseconds; global long serializer.

Response example

Example response envelope from the documented SEO API contract.

{
  "code": 0,
  "cost": "-1",
  "data": {
    "callId": "synthetic-call",
    "completedAt": null,
    "coverage": {
      "missing": [
        {
          "field": "synthetic",
          "reason": "UPSTREAM_FIELD_MISSING"
        }
      ],
      "status": "PARTIAL"
    },
    "requestedAt": "123",
    "result": {
      "grouping": "synthetic",
      "inputTarget": {
        "kind": "synthetic",
        "target": "synthetic"
      },
      "items": [
        {
          "anchor": "synthetic",
          "dofollow": false,
          "firstSeenAt": 9007199254740992,
          "fromUrl": "synthetic",
          "isLost": false,
          "isNew": false,
          "lastSeenAt": 9007199254740992,
          "linksCount": 9007199254740992,
          "missing": [
            {
              "field": "synthetic",
              "reason": "synthetic"
            }
          ],
          "rank": 9007199254740992,
          "spamScore": 9007199254740992,
          "toUrl": "synthetic"
        }
      ],
      "missing": [
        {
          "field": "synthetic",
          "reason": "synthetic"
        }
      ],
      "normalizedTarget": {
        "kind": "synthetic",
        "target": "synthetic"
      },
      "providerTotalCount": 9007199254740992,
      "requestedLimit": 1,
      "returnedCount": 1,
      "sourceKind": "synthetic",
      "sourceProduct": "synthetic",
      "status": "synthetic",
      "truncated": false
    },
    "schemaVersion": "synthetic",
    "source": "synthetic",
    "status": "PARTIAL",
    "usage": {
      "billingStatus": "UNAPPROVED",
      "chargedCredits": "0"
    }
  },
  "msg": null,
  "time": "2026-01-01 00:00:00",
  "traceId": "synthetic-trace",
  "ts": "9007199254740993"
}

Retrieve a processing result

A response with PROCESSING and a callId means the result is still being prepared. Use the result query below with the returned identifier. This lookup reads the stored result and does not spend credits.

curl -X GET https://api.nexscope.ai/api/skill-api/v1/skills/seo-backlink-records/calls/{callId} \
  -H "Authorization: Bearer nk-xxxxxxxxxxxxxxxxx"

Responses

Code	Description
200	HTTP request completed. Check JSON code; only 0 indicates business success or acceptance.
400	Request JSON or required API parameters are invalid.
401	API key is missing, invalid, or cannot be matched to a user.
5xx	API execution or upstream service failed.

Data source, freshness, and limitations

Source, freshness, coverage, rate limits, and estimation notes are not specified in this API definition unless they appear in the request or response field documentation above. Do not assume official marketplace data or real-time freshness when it is not explicitly documented.

MCP

V2 recommended

Connect remote agents through the standard MCP 2025-11-25 Streamable HTTP endpoint. Use OAuth 2.1 Authorization Code with PKCE, or an API key for compatibility.

POST https://api.nexscope.ai/api/skill-api/v2/mcp
MCP-Protocol-Version: 2025-11-25
Content-Type: application/json

Authentication

OAuth clients request the mcp:tools scope. The endpoint's 401 response advertises protected-resource metadata for authorization discovery.

Call a tool

{
  "jsonrpc": "2.0",
  "id": "tool-call-1",
  "method": "tools/call",
  "params": {
    "name": "nexscope_seo_backlink_records",
    "arguments": {
      "limit": 10,
      "target": {
        "kind": "DOMAIN",
        "target": "nexscope.ai"
      }
    }
  }
}

Legacy MCP v1

Existing API-key clients can continue using the compatibility endpoint. New integrations should use MCP v2.

GET / POST /api/skill-api/v1/mcp

Online test

Execute the current API with your API key and JSON payload.

Try it

Send a real request with the same contract shown in the reference.

Endpoint

/api/skill-api/v1/skills/seo-backlink-records/run

Processing result endpoint

https://api.nexscope.ai/api/skill-api/v1/skills/seo-backlink-records/calls/{resultId}

MCP method

nexscope_seo_backlink_records

API key*

JSON payload*

cURL

curl -X POST \
  https://api.nexscope.ai/api/skill-api/v1/skills/seo-backlink-records/run \
  -H "Authorization: Bearer nk-..." \
  -H "Content-Type: application/json" \
  -d '{ "limit": 10, "target": { "kind": "DOMAIN", "target": "nexscope.ai" } }'

Response

No response yet. Run the request to see the response here.

Processing result

Use the identifier returned by Run API. The tester selects the correct result query automatically, and result queries do not spend credits.

Result identifier

Result response

No task result yet. Query the task to see the generated output here.