# Market Top Holders ## Get Prediction Market Top Holders > Get the largest position holders for a Polymarket prediction market. Positions are\ > computed from on-chain ERC-1155 token transfers on Polygon, with SAFE proxy wallet\ > resolution to identify actual users.\ > \ > \*\*What it helps to answer:\*\*\ > \ > 1\. \*\*Who are the biggest holders in this prediction market?\*\*\ > 2\. \*\*What are the position sizes and entry prices of top holders?\*\*\ > 3\. \*\*What is the unrealized PnL of major positions?\*\*\ > 4\. \*\*Are whales positioned Yes or No?\*\* ```json {"openapi":"3.1.0","info":{"title":"Nansen API","version":"1.0.0"},"servers":[{"url":"https://api.nansen.ai"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","in":"header","name":"apiKey","description":"API key for authentication"}},"schemas":{"TopHoldersRequest":{"properties":{"market_id":{"type":"string","maxLength":100,"minLength":1,"title":"Market Id","description":"Polymarket market 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requests."},"SortOrder_TopHolderSortField_":{"properties":{"field":{"$ref":"#/components/schemas/TopHolderSortField","description":"Field to sort by"},"direction":{"$ref":"#/components/schemas/SortDirection","description":"Sort direction (ASC or DESC)"}},"type":"object","required":["field","direction"],"title":"SortOrder[TopHolderSortField]"},"TopHolderSortField":{"type":"string","enum":["position_size","unrealized_pnl_usd","avg_entry_price"],"title":"TopHolderSortField","description":"Sortable fields for top holders endpoint."},"SortDirection":{"type":"string","enum":["ASC","DESC"],"title":"SortDirection","description":"Enum for sort directions."},"TopHoldersResponse":{"properties":{"pagination":{"$ref":"#/components/schemas/PaginationInfo"},"data":{"items":{"$ref":"#/components/schemas/TopHolder"},"type":"array","title":"Data","description":"List of top holder records"}},"type":"object","required":["data"],"title":"TopHoldersResponse","description":"Response for top holders endpoint."},"PaginationInfo":{"properties":{"page":{"type":"integer","minimum":1,"title":"Page","description":"Current page number","default":1},"per_page":{"type":"integer","maximum":1000,"minimum":1,"title":"Per Page","description":"Number of records per page","default":10},"is_last_page":{"type":"boolean","title":"Is Last Page","description":"Whether this is the last page","default":true}},"type":"object","title":"PaginationInfo","description":"Pagination information for API responses."},"TopHolder":{"properties":{"market_id":{"type":"string","title":"Market Id","description":"Market ID"},"outcome_index":{"anyOf":[{"type":"integer"}],"title":"Outcome Index","description":"Outcome index"},"address":{"anyOf":[{"type":"string"}],"title":"Address","description":"Holder address (hex)"},"owner_address":{"anyOf":[{"type":"string"}],"title":"Owner Address","description":"SAFE proxy owner address (hex)"},"side":{"anyOf":[{"type":"string"}],"title":"Side","description":"Side held (Yes/No)"},"position_size":{"anyOf":[{"type":"number"}],"title":"Position Size","description":"Token position size"},"avg_entry_price":{"anyOf":[{"type":"number"}],"title":"Avg Entry Price","description":"Average entry price"},"current_price":{"anyOf":[{"type":"number"}],"title":"Current Price","description":"Current price"},"unrealized_pnl_usd":{"anyOf":[{"type":"number"}],"title":"Unrealized Pnl Usd","description":"Unrealized PnL in USD"}},"type":"object","required":["market_id"],"title":"TopHolder","description":"Top holder data from ch_api_pm_top_holders."}},"headers":{"XNansenCreditsUsed":{"description":"Number of credits consumed by this API request","schema":{"type":"string"}},"XNansenCreditsRemaining":{"description":"Total credits remaining in the user's account after this request","schema":{"type":"string"}},"PaymentReceipt":{"description":"Base64url-encoded MPP receipt returned on successful paid requests via Authorization: Payment","schema":{"type":"string"}},"RateLimitLimit":{"description":"Combined rate limit across all configured time windows","schema":{"type":"string"}},"RateLimitRemaining":{"description":"Number of requests remaining in the current limiting window","schema":{"type":"string"}},"RateLimitReset":{"description":"Time in seconds until the rate limit window resets","schema":{"type":"string"}},"XRateLimitLimitSecond":{"description":"Maximum requests allowed per second","schema":{"type":"string"}},"XRateLimitRemainingSecond":{"description":"Requests remaining in the current second","schema":{"type":"string"}},"XRateLimitLimitMinute":{"description":"Maximum requests allowed per minute","schema":{"type":"string"}},"XRateLimitRemainingMinute":{"description":"Requests remaining in the current minute","schema":{"type":"string"}},"PaymentRequired":{"description":"Base64-encoded x402 payment options returned on 402 responses for x402 clients","schema":{"type":"string"}},"WWWAuthenticatePayment":{"description":"MPP payment challenge returned on 402 responses, for example `Payment id=\"...\", realm=\"api.nansen.ai\", method=\"tempo\", intent=\"charge\", request=\"...\"`","schema":{"type":"string"}},"RetryAfter":{"description":"Number of seconds to wait before making a new request","schema":{"type":"string"}}},"responses":{"BadRequestError":{"description":"Bad Request - Invalid request parameters or malformed request","content":{"application/json":{"schema":{"type":"object","properties":{"detail":{"type":"string"}}}}}},"UnauthorizedError":{"description":"Authentication error - No API key found in request","content":{"application/json":{"schema":{"type":"object","properties":{"detail":{"type":"string"}}}}}},"PaymentRequiredError":{"description":"Payment Required - This endpoint supports pay-per-request via x402 and MPP. x402 responses advertise payment options in `Payment-Required`; MPP responses advertise a fresh `WWW-Authenticate: Payment ...` challenge. Successful MPP responses may include `Payment-Receipt`.","headers":{"Payment-Required":{"$ref":"#/components/headers/PaymentRequired"},"WWW-Authenticate":{"$ref":"#/components/headers/WWWAuthenticatePayment"}},"content":{"application/json":{"schema":{"type":"object","description":"Problem-details body for x402 or MPP payment challenges."}}}},"ForbiddenError":{"description":"Forbidden - User does not have required subscription tier or has exceeded credit limit","content":{"application/json":{"schema":{"type":"object","properties":{"detail":{"type":"string"}}}}}},"NotFoundError":{"description":"Not Found - The requested resource was not found","content":{"application/json":{"schema":{"type":"object","properties":{"detail":{"type":"string"}}}}}},"ValidationError":{"description":"Validation error - Invalid request parameters","content":{"application/json":{"schema":{"type":"object","properties":{"detail":{"type":"array","items":{"type":"object","properties":{"loc":{"type":"array","items":{"type":"string"}},"msg":{"type":"string"},"type":{"type":"string"}}}}}}}}},"TooManyRequestsError":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"type":"object","properties":{"detail":{"type":"string"},"retry_after":{"type":"integer","description":"Seconds to wait before retrying"}}}}},"headers":{"Retry-After":{"$ref":"#/components/headers/RetryAfter"}}},"InternalServerError":{"description":"Internal Server Error - An unexpected error occurred","content":{"application/json":{"schema":{"type":"object","properties":{"detail":{"type":"string"}}}}}}}},"paths":{"/api/v1/prediction-market/top-holders":{"post":{"tags":["Prediction Markets"],"summary":"Get Prediction Market Top Holders","description":"Get the largest position holders for a Polymarket prediction market. Positions are\ncomputed from on-chain ERC-1155 token transfers on Polygon, with SAFE proxy wallet\nresolution to identify actual users.\n\n**What it helps to answer:**\n\n1. **Who are the biggest holders in this prediction market?**\n2. **What are the position sizes and entry prices of top holders?**\n3. **What is the unrealized PnL of major positions?**\n4. **Are whales positioned Yes or No?**","operationId":"get_prediction_market_top_holders_api_v1_prediction_market_top_holders_post","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/TopHoldersRequest"}}},"required":true},"responses":{"200":{"description":"Top holder data","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TopHoldersResponse"}}},"headers":{"X-Nansen-Credits-Used":{"$ref":"#/components/headers/XNansenCreditsUsed"},"X-Nansen-Credits-Remaining":{"$ref":"#/components/headers/XNansenCreditsRemaining"},"Payment-Receipt":{"$ref":"#/components/headers/PaymentReceipt"},"RateLimit-Limit":{"$ref":"#/components/headers/RateLimitLimit"},"RateLimit-Remaining":{"$ref":"#/components/headers/RateLimitRemaining"},"RateLimit-Reset":{"$ref":"#/components/headers/RateLimitReset"},"X-RateLimit-Limit-Second":{"$ref":"#/components/headers/XRateLimitLimitSecond"},"X-RateLimit-Remaining-Second":{"$ref":"#/components/headers/XRateLimitRemainingSecond"},"X-RateLimit-Limit-Minute":{"$ref":"#/components/headers/XRateLimitLimitMinute"},"X-RateLimit-Remaining-Minute":{"$ref":"#/components/headers/XRateLimitRemainingMinute"}}},"400":{"description":"Bad Request","$ref":"#/components/responses/BadRequestError"},"401":{"description":"Unauthorized","$ref":"#/components/responses/UnauthorizedError"},"402":{"description":"Payment Required","$ref":"#/components/responses/PaymentRequiredError"},"403":{"description":"Forbidden","$ref":"#/components/responses/ForbiddenError"},"404":{"description":"Not Found","$ref":"#/components/responses/NotFoundError"},"422":{"description":"Unprocessable Content","$ref":"#/components/responses/ValidationError"},"429":{"description":"Too Many Requests","$ref":"#/components/responses/TooManyRequestsError"},"500":{"description":"Internal Server Error","$ref":"#/components/responses/InternalServerError"}}}}}} ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.nansen.ai/api/prediction-market/market-top-holders.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.