> ## Documentation Index > Fetch the complete documentation index at: https://docs.influship.com/llms.txt > Use this file to discover all available pages before exploring further. # Find Similar Creators > Find creators similar to provided seed creators using AI-powered similarity matching. Analyzes content themes, audience overlap, posting style, and engagement patterns. **Use cases:** - Expand campaigns with creators similar to proven performers - Find alternatives when preferred creators are unavailable - Discover emerging creators in the same niche **How it works:** 1. Provide 1-10 seed creators (by ID or platform/username) 2. Optionally weight seeds to prioritize certain creators 3. Get ranked results with similarity scores and shared traits Also callable as the `find_lookalike_creators` MCP tool — see [the MCP server guide](/guides/mcp-server) for setup. **Pricing**: 1.5 credits per creator returned ($0.015) ## OpenAPI ````yaml https://app.stainless.com/api/spec/documented/influship-api/openapi.documented.yml post /v1/creators/lookalike openapi: 3.1.0 info: title: Influship API version: 1.0.0 description: > Public API for creator search, profile lookup, and campaign-fit analysis. ## Authentication Send your API key in the `X-API-Key` header on every authenticated request. ```bash curl -H "X-API-Key: your_api_key" https://api.influship.com/v1/creators/autocomplete?q=fitness ``` ## Billing and Rate Limits The API uses credit-based billing and credit-based rate limits. - every endpoint has a credit cost - successful responses include `X-Credits-Charged` and `X-Credits-Features` - rate limits are enforced with per-minute and per-hour credit budgets - rate limit state is returned in the `RateLimit-*` headers ## Pagination List endpoints use cursor pagination. - send `limit` to control page size - use `next_cursor` from the response to fetch the next page - stop when `has_more` is `false` Search has one special rule: - `POST /v1/search` creates a persisted search session - `GET /v1/search/{id}` paginates that session for free - free pagination is capped by the original search `limit` ## Errors Errors use a consistent shape: ```json { "error": { "code": "rate_limit_exceeded", "message": "Rate limit exceeded (per minute)" } } ``` See each operation for exact request and response schemas. contact: name: Influship Support email: support@influship.com license: name: Proprietary url: https://influship.com/terms servers: - url: https://api.influship.com description: Production security: - ApiKeyAuth: [] tags: - name: Health description: API health and status endpoints - name: Creators description: >- Retrieve creator profiles and discover new creators through search, autocomplete, and lookalike matching. Creators are cross-platform entities that may have profiles on multiple social networks. - name: Profiles description: >- Access individual social media profiles with detailed metrics, growth data, and activity information. Profiles are platform-specific accounts linked to creators. - name: Creator Emails description: >- Look up known creator email addresses by creator ID or social username. Empty or unresolved results are not billable. - name: Posts description: >- Retrieve and analyze social media posts with engagement metrics, media content, and performance data. - name: Search description: >- AI-powered semantic search to find creators using natural language queries. Understands intent and context to match creators based on content themes, audience, and style. - name: Live Scraping description: >- Fetch fresh data directly from social platforms in real-time. Use when you need the most current information or data for profiles not yet in our database. paths: /v1/creators/lookalike: post: tags: - Creators summary: Find Similar Creators description: >- Find creators similar to provided seed creators using AI-powered similarity matching. Analyzes content themes, audience overlap, posting style, and engagement patterns. **Use cases:** - Expand campaigns with creators similar to proven performers - Find alternatives when preferred creators are unavailable - Discover emerging creators in the same niche **How it works:** 1. Provide 1-10 seed creators (by ID or platform/username) 2. Optionally weight seeds to prioritize certain creators 3. Get ranked results with similarity scores and shared traits Also callable as the `find_lookalike_creators` MCP tool — see [the MCP server guide](/guides/mcp-server) for setup. **Pricing**: 1.5 credits per creator returned ($0.015) operationId: findLookalikeCreators requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/LookalikeRequest' description: Find similar creators request responses: '200': description: Successful response content: application/json: schema: $ref: '#/components/schemas/LookalikeResponse' '400': description: Validation error response content: application/json: schema: $ref: '#/components/schemas/Error400' '401': description: Authentication error response content: application/json: schema: $ref: '#/components/schemas/Error401' '403': description: Permission error response content: application/json: schema: $ref: '#/components/schemas/Error403' '404': description: Not found error response content: application/json: schema: $ref: '#/components/schemas/Error404' '429': description: >- Rate limit exceeded response. Check Retry-After header for backoff timing. Also returned (without RateLimit-* headers) when an IP is temporarily blocked after repeated failed authentication attempts. content: application/json: schema: $ref: '#/components/schemas/Error429' '500': description: Internal server error response content: application/json: schema: $ref: '#/components/schemas/Error500' x-codeSamples: - lang: JavaScript source: >- import Influship from 'influship'; const client = new Influship({ apiKey: process.env['INFLUSHIP_API_KEY'], // This is the default and can be omitted }); // Automatically fetches more pages as needed. for await (const creatorLookalikeResponse of client.creators.lookalike({ seeds: [{}] })) { console.log(creatorLookalikeResponse.creator); } - lang: Python source: |- import os from influship import Influship client = Influship( api_key=os.environ.get("INFLUSHIP_API_KEY"), # This is the default and can be omitted ) page = client.creators.lookalike( seeds=[{}], ) page = page.data[0] print(page.creator) components: schemas: LookalikeRequest: type: object properties: seeds: minItems: 1 maxItems: 10 type: array items: $ref: '#/components/schemas/LookalikeSeed' description: Seed creators to find similar creators for filters: $ref: '#/components/schemas/CommonFilters' description: Additional filters limit: default: 25 description: Maximum results to return example: 25 type: integer minimum: 1 maximum: 100 cursor: description: Pagination cursor for next page type: string required: - seeds description: Find similar creators request examples: - seeds: - platform: instagram username: fitness_coach_jane limit: 20 - seeds: - creator_id: 123e4567-e89b-12d3-a456-426614174000 weight: 1 - platform: instagram username: wellness_guru weight: 0.5 filters: followers: min: 25000 limit: 25 LookalikeResponse: type: object properties: data: $ref: '#/components/schemas/LookalikeResponseData' has_more: type: boolean description: Whether more results are available example: true next_cursor: type: - string - 'null' description: Cursor for the next page example: eyJvZmZzZXQiOjI1fQ== required: - data - has_more - next_cursor additionalProperties: false Error400: $ref: '#/components/schemas/Error' description: Validation error response examples: - error: code: validation_error message: 'Invalid value for parameter ''limit'': must be between 1 and 100' param: limit request_id: 550e8400-e29b-41d4-a716-446655440000 Error401: $ref: '#/components/schemas/Error' description: Authentication error response examples: - error: code: unauthorized message: API key missing or invalid request_id: 550e8400-e29b-41d4-a716-446655440000 Error403: $ref: '#/components/schemas/Error' description: Permission error response examples: - error: code: forbidden message: Your plan does not include access to this endpoint request_id: 550e8400-e29b-41d4-a716-446655440000 Error404: $ref: '#/components/schemas/Error' description: Not found error response examples: - error: code: not_found message: Creator with ID '123e4567-e89b-12d3-a456-426614174000' not found request_id: 550e8400-e29b-41d4-a716-446655440000 Error429: $ref: '#/components/schemas/Error' description: >- Rate limit exceeded response. Check Retry-After header for backoff timing. Also returned (without RateLimit-* headers) when an IP is temporarily blocked after repeated failed authentication attempts. examples: - error: code: rate_limit_exceeded message: Rate limit exceeded (per minute) request_id: 550e8400-e29b-41d4-a716-446655440000 - error: code: rate_limit_exceeded message: Rate limit exceeded (per hour) request_id: 550e8400-e29b-41d4-a716-446655440001 - error: code: rate_limit_exceeded message: Too many failed authentication attempts. Please try again later. request_id: 550e8400-e29b-41d4-a716-446655440002 Error500: $ref: '#/components/schemas/Error' description: Internal server error response examples: - error: code: internal_error message: An unexpected error occurred. Please try again later. request_id: 550e8400-e29b-41d4-a716-446655440000 LookalikeSeed: type: object properties: creator_id: description: Creator ID (use this OR platform+username) example: 123e4567-e89b-12d3-a456-426614174000 type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ platform: $ref: '#/components/schemas/Platform' description: Platform (required with username) username: description: Username (required with platform) example: fitness_coach_jane type: string minLength: 1 maxLength: 50 weight: default: 1 description: Weight for this seed (0-1) example: 1 type: number minimum: 0 maximum: 1 description: Seed creator for lookalike search CommonFilters: type: object properties: followers: $ref: '#/components/schemas/FollowersFilter' description: Filter by follower count engagement_rate: $ref: '#/components/schemas/EngagementRateFilter' description: Filter by engagement rate verified: description: Filter by verified status example: true type: boolean description: Common filters for creator discovery LookalikeResponseData: type: array items: $ref: '#/components/schemas/LookalikeResultItem' Error: type: object properties: error: type: object properties: code: $ref: '#/components/schemas/ErrorCode' description: Machine-readable error code message: type: string description: Human-readable error message example: Request validation failed param: description: Parameter that caused the error (if applicable) example: query type: string request_id: description: Request ID for debugging example: 550e8400-e29b-41d4-a716-446655440000 type: string details: description: Structured error context (e.g., field-level validation issues) type: object propertyNames: type: string additionalProperties: {} required: - code - message additionalProperties: false required: - error additionalProperties: false Platform: type: string enum: - instagram description: Social media platform example: instagram FollowersFilter: type: object properties: min: description: Minimum follower count example: 10000 type: number minimum: 0 max: description: Maximum follower count example: 500000 type: number minimum: 0 description: Filter by follower count range EngagementRateFilter: type: object properties: min: description: Minimum engagement rate (%) example: 1.5 type: number minimum: 0 maximum: 100 max: description: Maximum engagement rate (%) example: 10 type: number minimum: 0 maximum: 100 description: Filter by engagement rate range LookalikeResultItem: type: object properties: creator: $ref: '#/components/schemas/CreatorBasic' primary_profile: anyOf: - $ref: '#/components/schemas/ProfileSummary' - type: 'null' description: >- Primary profile (largest audience, null if no profile data available) similarity: $ref: '#/components/schemas/SimilarityInfo' required: - creator - primary_profile - similarity additionalProperties: false ErrorCode: type: string enum: - validation_error - invalid_parameter - missing_parameter - unauthorized - forbidden - payment_required - not_found - rate_limit_exceeded - internal_error - service_unavailable - database_error - seed_not_found - invalid_seeds - seed_resolution_failed - lookalike_failed - get_profiles_failed - post_analysis_failed - match_failed - scraping_failed - transcript_unavailable description: Machine-readable error code for programmatic handling example: validation_error CreatorBasic: type: object properties: id: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ description: Creator unique identifier example: 123e4567-e89b-12d3-a456-426614174000 name: type: string description: Creator display name example: Jane Fitness bio: type: - string - 'null' description: Creator bio example: Fitness coach & wellness advocate avatar_url: type: - string - 'null' description: Avatar URL example: https://cdn.example.com/avatars/jane.jpg required: - id - name - bio - avatar_url additionalProperties: false description: Basic creator information ProfileSummary: type: object properties: id: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ description: Profile unique identifier example: 123e4567-e89b-12d3-a456-426614174000 platform: $ref: '#/components/schemas/Platform' username: type: string description: Profile username example: fitness_coach_jane url: type: string format: uri description: Profile URL example: https://www.instagram.com/fitness_coach_jane followers: type: - integer - 'null' minimum: 0 maximum: 9007199254740991 description: Follower count (null if unknown) example: 125000 engagement_rate: type: - number - 'null' minimum: 0 description: >- Engagement rate as a percentage, null if unknown (e.g. 3.5 means 3.5%) example: 3.5 is_verified: type: boolean description: Whether the account is verified example: true required: - id - platform - username - url - followers - engagement_rate - is_verified additionalProperties: false description: Abbreviated profile information SimilarityInfo: type: object properties: score: type: number minimum: 0 maximum: 1 description: Similarity score (0-1) example: 0.78 shared_traits: type: array items: type: string description: Shared traits with seed creators example: - Similar content style - Same niche audience required: - score - shared_traits additionalProperties: false description: Similarity information for lookalike match securitySchemes: ApiKeyAuth: type: apiKey in: header name: X-API-Key ````