---
title: "Cross Platform Reach"
method: POST
path: "/api/kols/{username}/cross-platform/resolve"
tags: ["Enrichment"]
---

# Cross Platform Reach

`POST /api/kols/{username}/cross-platform/resolve`

## Request

- Base URL: `https://api.kolens.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.kolens.ai/api/kols/{username}/cross-platform/resolve`
- Auth: HTTP bearer

Resolve a creator's other-platform profiles and merge them into a
single cross-platform reach view.

The paid sibling of the free ``GET /kols/{username}/cross-platform``
dossier aggregation (which only surfaces pointers we already know):
this POST actively fetches each other-platform profile via Apify and
merges real follower counts. Pay-for-result — charges
``cross_platform_cost_credits`` (default 1) per platform actually
resolved; unresolved platforms never debit; a cached repeat within the
freshness window is free.

## Path parameters

- `username` string, required

## Headers

- `x-kolens-user-id` string, nullable
- `x-kolens-workspace-id` string, nullable

## Request body

- CrossPlatformRequest
  - `platforms` string[]: Target platforms to resolve + merge (youtube / facebook / instagram).
  - `force` boolean: Bypass the cache + re-resolve

## Response `200`

Successful Response

- CrossPlatformResolveResponse
  - `platforms` object[], required
  - `reach_total` integer, nullable
  - `native_followers` integer, nullable
  - `confidence` string, required
  - `cost_credits` integer, required
  - `cached` boolean, required
  - `summary` string, required
  - `risk_flags` string[]
  - `next_actions` string[]

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/kolens/apis/kolens-api.md) · [All operations](https://skmtc.dev/kolens/apis/kolens-api/llms.txt) · [OpenAPI document](https://skmtc.dev/kolens/apis/kolens-api/revisions/5d6865ab0a24?raw)