> For the complete documentation index, see [llms.txt](https://docs.42.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.42.space/for-developers/rest-api-alpha/markets/get-per-event-price-history.md).

# Get per-event price history

GET /api/v1/market-data/prices/event-history

## Get per-event price history

> Returns one row per onchain event that touched the outcome (mint/redeem/etc), from the outcome\_stats hypertable. Unlike /prices/history this is NOT bucketed or gap-filled — each point reflects the marginal price and collateral immediately after a specific event, so the chart can plot per-trade resolution for short windows. Use \`start\_ts\`/\`end\_ts\` to bound the window (required for \`start\_ts\` since the hypertable can be large); use \`fidelity\` to downsample if the window contains more events than you want to render. Events before the outcome's first real trade are omitted — the market "seed" mint carries a distorted bootstrap price (not a real traded price), and that price is carried forward until the outcome is first traded, so the series opens on a genuine price.

```json
{"openapi":"3.1.1","info":{"title":"FortyTwo Read API","version":"1.0"},"tags":[{"description":"GET /api/v1/market-data/prices/event-history","name":"get-event-price-history"}],"servers":[{"url":"https://rest.ft.42.space/"}],"paths":{"/api/v1/market-data/prices/event-history":{"get":{"description":"Returns one row per onchain event that touched the outcome (mint/redeem/etc), from the outcome_stats hypertable. Unlike /prices/history this is NOT bucketed or gap-filled — each point reflects the marginal price and collateral immediately after a specific event, so the chart can plot per-trade resolution for short windows. Use `start_ts`/`end_ts` to bound the window (required for `start_ts` since the hypertable can be large); use `fidelity` to downsample if the window contains more events than you want to render. Events before the outcome's first real trade are omitted — the market \"seed\" mint carries a distorted bootstrap price (not a real traded price), and that price is carried forward until the outcome is first traded, so the series opens on a genuine price.","tags":["get-event-price-history"],"summary":"Get per-event price history","parameters":[{"schema":{"type":"string"},"description":"Market contract address","name":"market","in":"query","required":true},{"schema":{"type":"string"},"description":"Outcome token ID (provide token_id or outcome_index, not both)","name":"token_id","in":"query"},{"schema":{"type":"integer"},"description":"Outcome index, 0-based (provide token_id or outcome_index, not both)","name":"outcome_index","in":"query"},{"schema":{"type":"integer"},"description":"Start unix timestamp","name":"start_ts","in":"query","required":true},{"schema":{"type":"integer"},"description":"End unix timestamp (default: now)","name":"end_ts","in":"query"},{"schema":{"type":"integer"},"description":"Max data points returned — downsamples if the window contains more","name":"fidelity","in":"query"}],"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/internal_handler.EventPriceHistoryResponse"}}}},"400":{"description":"Bad Request","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ft_market-service-v2_pkg_api.ErrorResponse"}}}},"404":{"description":"Not Found","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ft_market-service-v2_pkg_api.ErrorResponse"}}}},"500":{"description":"Internal Server Error","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ft_market-service-v2_pkg_api.ErrorResponse"}}}}}}}},"components":{"schemas":{"internal_handler.EventPriceHistoryResponse":{"type":"object","properties":{"history":{"type":"array","items":{"$ref":"#/components/schemas/internal_handler.EventPricePoint"}},"outcomeName":{"type":"string"}}},"internal_handler.EventPricePoint":{"type":"object","properties":{"collateral":{"type":"number"},"mintedQuantity":{"type":"number"},"p":{"type":"number"},"payout":{"type":"number"},"t":{"type":"integer"}}},"ft_market-service-v2_pkg_api.ErrorResponse":{"type":"object","properties":{"code":{"type":"integer"},"error":{"type":"string"},"message":{"type":"string"}}}}}}
```


---

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