> For the complete documentation index, see [llms.txt](https://docs.nansen.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nansen.ai/api/prediction-market/market-position-details.md).

# Market Position Details

### Data Freshness & Historical Coverage

For data freshness and historical coverage, see [Data Coverage by Chain](/api/data-coverage.md); this endpoint follows it except where noted below.

* Returns a **current, point-in-time snapshot** of each holder's positions — there is no date-range parameter or historical look-back, and values reflect within the standard live latency.

## Get Prediction Market Position Detail

> Get detailed per-token position data for all holders in a specific prediction market.\
> Includes token balances, entry prices, current prices, and per-token PnL.\
> \
> \*\*What it helps to answer:\*\*\
> \
> 1\. \*\*What are the exact positions of each holder in this market?\*\*\
> 2\. \*\*What is the average entry price vs current price for each position?\*\*\
> 3\. \*\*How much has each token position gained or lost?\*\*

```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":{"PositionDetailRequest":{"properties":{"market_id":{"type":"string","maxLength":100,"minLength":1,"title":"Market Id","description":"Polymarket market ID"},"pagination":{"$ref":"#/components/schemas/PaginationRequest"}},"additionalProperties":false,"type":"object","required":["market_id"],"title":"PositionDetailRequest","description":"Request for position detail endpoint."},"PaginationRequest":{"properties":{"page":{"type":"integer","minimum":1,"title":"Page","description":"Page number (1-based)","default":1},"per_page":{"type":"integer","maximum":1000,"minimum":1,"title":"Per Page","description":"Number of records per page (max 1000)","default":10}},"type":"object","title":"PaginationRequest","description":"Pagination parameters for API requests."},"PositionDetailResponse":{"properties":{"pagination":{"$ref":"#/components/schemas/PaginationInfo"},"data":{"items":{"$ref":"#/components/schemas/PositionDetailItem"},"type":"array","title":"Data","description":"List of position detail records"}},"type":"object","required":["data"],"title":"PositionDetailResponse","description":"Response for position detail 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."},"PositionDetailItem":{"properties":{"address":{"anyOf":[{"type":"string"}],"title":"Address","description":"Holder address (hex)"},"owner_address":{"anyOf":[{"type":"string"}],"title":"Owner Address","description":"SAFE proxy owner address (hex)"},"outcome":{"anyOf":[{"type":"string"}],"title":"Outcome","description":"Outcome label"},"outcome_index":{"anyOf":[{"type":"integer"}],"title":"Outcome Index","description":"Outcome index"},"token_id":{"anyOf":[{"type":"string"}],"title":"Token Id","description":"CLOB token ID"},"balance":{"anyOf":[{"type":"number"}],"title":"Balance","description":"Token balance"},"buy_cost_usd":{"anyOf":[{"type":"number"}],"title":"Buy Cost Usd","description":"Total buy cost in USD"},"buy_tokens":{"anyOf":[{"type":"number"}],"title":"Buy Tokens","description":"Total tokens bought"},"sell_proceeds_usd":{"anyOf":[{"type":"number"}],"title":"Sell Proceeds Usd","description":"Total sell proceeds in USD"},"sell_tokens":{"anyOf":[{"type":"number"}],"title":"Sell Tokens","description":"Total tokens sold"},"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_value_usd":{"anyOf":[{"type":"number"}],"title":"Unrealized Value Usd","description":"Unrealized value in USD"},"redemption_value_usd":{"anyOf":[{"type":"number"}],"title":"Redemption Value Usd","description":"Redemption value in USD"},"token_pnl_usd":{"anyOf":[{"type":"number"}],"title":"Token Pnl Usd","description":"Token PnL in USD"},"event_id":{"anyOf":[{"type":"string"}],"title":"Event Id","description":"Parent event ID"},"event_title":{"anyOf":[{"type":"string"}],"title":"Event Title","description":"Parent event title"},"market_resolved":{"anyOf":[{"type":"boolean"}],"title":"Market Resolved","description":"Whether market is resolved"},"market_id":{"type":"string","title":"Market Id","description":"Market ID"}},"type":"object","required":["market_id"],"title":"PositionDetailItem","description":"Position detail data from ch_api_pm_position_detail."},"ErrorEnvelope":{"type":"object","required":["error","message","code","status","request_id","doc_url"],"properties":{"error":{"type":"string","description":"Human-readable error category."},"message":{"type":"string","description":"Human-readable explanation of the error."},"code":{"type":"string","enum":["missing_field","unknown_field","invalid_field_value","invalid_address_format","invalid_date_format","invalid_date_range","mutually_exclusive_fields","value_out_of_range","too_many_items","unauthenticated","forbidden","geo_blocked","plan_upgrade_required","insufficient_credits","rate_limit_exceeded","not_found","method_not_allowed","conflict","payload_too_large","query_timeout","query_too_large","upstream_unavailable","internal_error"],"description":"Stable machine-readable error code."},"status":{"type":"integer","description":"HTTP status code returned for the request."},"request_id":{"type":["string","null"],"description":"Identifier for the request, when available."},"doc_url":{"type":"string","format":"uri","description":"Link to the error-code reference documentation, anchored to this error's code."},"param":{"type":"string","description":"Request parameter associated with the error."},"retry_after":{"type":"integer","minimum":0,"description":"Seconds to wait before retrying the request."}}}},"headers":{"XNansenCreditsCost":{"description":"Quoted credit cost of this request. It is present on successful responses and errors reached after pricing, but absent when a request is rejected before pricing. A value of 0 means plan credits do not apply.","schema":{"type":"string"}},"XRequestId":{"description":"Unique identifier for this request, returned on every response. Uses the upstream-assigned request id when available; otherwise echoes a caller-supplied X-Request-Id or generates an id. Include this value in support requests.","schema":{"type":"string"}},"XNansenCreditsUsed":{"description":"Credits actually deducted for this request. Can differ from the quoted cost, for example 0 when the request was rejected.","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":"Seconds until the rate limit window resets. A delta in seconds, not a Unix timestamp.","schema":{"type":"string"}},"XRateLimitLimit":{"description":"Request limit for the most constrained app-enforced window","schema":{"type":"string"}},"XRateLimitRemaining":{"description":"Requests remaining in the most constrained app-enforced window","schema":{"type":"string"}},"XRateLimitReset":{"description":"Seconds until the most constrained app-enforced window resets. A delta in seconds, not a Unix timestamp: it is at least 1 and never exceeds the window span.","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"}},"XNansenRateLimitScope":{"description":"Window that caused an enforced rate-limit rejection: `second` or `minute` for global plan windows, or `endpoint` for an endpoint-specific window. This is an open set; clients should handle unknown future values with generic rate-limit behavior.","schema":{"type":"string"}}},"responses":{"BadRequestError":{"description":"Bad Request - Invalid request parameters or malformed request","headers":{"X-Nansen-Credits-Cost":{"$ref":"#/components/headers/XNansenCreditsCost"},"X-Request-Id":{"$ref":"#/components/headers/XRequestId"}},"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/ErrorEnvelope"},{"type":"object","properties":{"detail":{"type":"string"}}}]}}}},"UnauthorizedError":{"description":"Authentication error - No API key found in request","headers":{"X-Request-Id":{"$ref":"#/components/headers/XRequestId"}},"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/ErrorEnvelope"},{"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"},"X-Request-Id":{"$ref":"#/components/headers/XRequestId"}},"content":{"application/json":{"schema":{"type":"object","description":"Problem-details body for x402 or MPP payment challenges."}}}},"ForbiddenError":{"description":"Forbidden - User does not have required subscription tier or has exceeded credit limit","headers":{"X-Nansen-Credits-Cost":{"$ref":"#/components/headers/XNansenCreditsCost"},"X-Nansen-Credits-Used":{"$ref":"#/components/headers/XNansenCreditsUsed"},"X-Nansen-Credits-Remaining":{"$ref":"#/components/headers/XNansenCreditsRemaining"},"X-Request-Id":{"$ref":"#/components/headers/XRequestId"}},"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/ErrorEnvelope"},{"type":"object","properties":{"detail":{"type":"string"}}}]}}}},"NotFoundError":{"description":"Not Found - The requested resource was not found","headers":{"X-Nansen-Credits-Cost":{"$ref":"#/components/headers/XNansenCreditsCost"},"X-Request-Id":{"$ref":"#/components/headers/XRequestId"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorEnvelope"}}}},"ValidationError":{"description":"Validation error - Invalid request parameters","headers":{"X-Nansen-Credits-Cost":{"$ref":"#/components/headers/XNansenCreditsCost"},"X-Request-Id":{"$ref":"#/components/headers/XRequestId"}},"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/ErrorEnvelope"},{"type":"object","properties":{"errors":{"type":"array","description":"Per-field request-validation errors, in the order they were detected. This field is absent from other 422 responses. The top-level error, message, and code reflect the primary error, which is not always the first entry. When a request produces an unusually large number of errors the list is truncated and a final entry reports how many were omitted.","items":{"type":"object","required":["field","message","code"],"properties":{"field":{"type":"string","description":"Path of the request field that failed validation, prefixed with its location in the request (body, query, path, header, or cookie) and including array indices. Unlike param, this path keeps the location prefix and array indices."},"message":{"type":"string","description":"Human-readable explanation of the field error."},"code":{"type":"string","enum":["missing_field","unknown_field","invalid_field_value","invalid_address_format","invalid_date_format","invalid_date_range","mutually_exclusive_fields","value_out_of_range","too_many_items"],"description":"Stable machine-readable error code."}}}}}}]}}}},"TooManyRequestsError":{"description":"Too Many Requests - Rate limit exceeded","content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/ErrorEnvelope"},{"type":"object","properties":{"detail":{"type":"string"},"retry_after":{"type":"integer","description":"Seconds to wait before retrying"}}}]}}},"headers":{"X-Nansen-Credits-Cost":{"$ref":"#/components/headers/XNansenCreditsCost"},"Retry-After":{"$ref":"#/components/headers/RetryAfter"},"X-RateLimit-Limit":{"$ref":"#/components/headers/XRateLimitLimit"},"X-RateLimit-Remaining":{"$ref":"#/components/headers/XRateLimitRemaining"},"X-RateLimit-Reset":{"$ref":"#/components/headers/XRateLimitReset"},"X-Nansen-RateLimit-Scope":{"$ref":"#/components/headers/XNansenRateLimitScope"},"X-Request-Id":{"$ref":"#/components/headers/XRequestId"}}},"InternalServerError":{"description":"Internal Server Error - An unexpected error occurred","headers":{"X-Nansen-Credits-Cost":{"$ref":"#/components/headers/XNansenCreditsCost"},"X-Request-Id":{"$ref":"#/components/headers/XRequestId"}},"content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorEnvelope"}}}},"BadGatewayError":{"description":"Bad Gateway - Upstream service unavailable","headers":{"X-Nansen-Credits-Cost":{"$ref":"#/components/headers/XNansenCreditsCost"},"Retry-After":{"$ref":"#/components/headers/RetryAfter"},"X-Request-Id":{"$ref":"#/components/headers/XRequestId"}},"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/ErrorEnvelope"},{"type":"object","required":["retry_after"],"properties":{"retry_after":{"type":"integer","description":"Seconds to wait before retrying"}}}]}}}},"ServiceUnavailableError":{"description":"Service Unavailable - Service temporarily unavailable","headers":{"X-Nansen-Credits-Cost":{"$ref":"#/components/headers/XNansenCreditsCost"},"Retry-After":{"$ref":"#/components/headers/RetryAfter"},"X-Request-Id":{"$ref":"#/components/headers/XRequestId"}},"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/ErrorEnvelope"},{"type":"object","required":["retry_after"],"properties":{"retry_after":{"type":"integer","description":"Seconds to wait before retrying"}}}]}}}},"GatewayTimeoutError":{"description":"Gateway Timeout - Upstream service timed out","headers":{"X-Nansen-Credits-Cost":{"$ref":"#/components/headers/XNansenCreditsCost"},"Retry-After":{"$ref":"#/components/headers/RetryAfter"},"X-Request-Id":{"$ref":"#/components/headers/XRequestId"}},"content":{"application/json":{"schema":{"allOf":[{"$ref":"#/components/schemas/ErrorEnvelope"},{"type":"object","required":["retry_after"],"properties":{"retry_after":{"type":"integer","description":"Seconds to wait before retrying"}}}]}}}}}},"paths":{"/api/v1/prediction-market/position-detail":{"post":{"tags":["Prediction Markets"],"summary":"Get Prediction Market Position Detail","description":"Get detailed per-token position data for all holders in a specific prediction market.\nIncludes token balances, entry prices, current prices, and per-token PnL.\n\n**What it helps to answer:**\n\n1. **What are the exact positions of each holder in this market?**\n2. **What is the average entry price vs current price for each position?**\n3. **How much has each token position gained or lost?**","operationId":"get_prediction_market_position_detail_api_v1_prediction_market_position_detail_post","requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/PositionDetailRequest"}}},"required":true},"responses":{"200":{"description":"Position detail data","content":{"application/json":{"schema":{"$ref":"#/components/schemas/PositionDetailResponse"}}},"headers":{"X-Nansen-Credits-Cost":{"$ref":"#/components/headers/XNansenCreditsCost"},"X-Request-Id":{"$ref":"#/components/headers/XRequestId"},"X-Nansen-Credits-Used":{"$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":{"$ref":"#/components/headers/RateLimitReset"},"X-RateLimit-Limit":{"$ref":"#/components/headers/XRateLimitLimit"},"X-RateLimit-Remaining":{"$ref":"#/components/headers/XRateLimitRemaining"},"X-RateLimit-Reset":{"$ref":"#/components/headers/XRateLimitReset"},"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"},"502":{"description":"Bad Gateway","$ref":"#/components/responses/BadGatewayError"},"503":{"description":"Service Unavailable","$ref":"#/components/responses/ServiceUnavailableError"},"504":{"description":"Gateway Timeout","$ref":"#/components/responses/GatewayTimeoutError"}}}}}}
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://docs.nansen.ai/api/prediction-market/market-position-details.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.