---
title: "Pre-trade HFT route certification"
method: POST
path: "/v1/finsec/hft/verify-route"
---

# Pre-trade HFT route certification

`POST /v1/finsec/hft/verify-route`

## Request

- Base URL: `https://financesec.api.caleralabs.com`
- URL: `https://financesec.api.caleralabs.com/v1/finsec/hft/verify-route`
- Auth: API key in header `X-License-Key`

Certify a child order before it hits the matching engine. Execute only if status is APPROVED. HTTP 422 if REFUSED. Solver SLA < 500µs. Aliases: /v1/hft/verify-route.

## Request body

- HftVerifyRouteRequest
  - `desk_id` string, required
  - `instrument` string, required
  - `order_type` string, required
  - `order_size_shares` integer, required
  - `target_venues` string[], required
  - `max_slippage_tolerance_bps` number, required

## Response `200`

Route certification stability verdict with recommended split

- HftVerifyRouteResponse
  - `status` string
  - `routing_stability` string
  - `latency_microseconds` integer
  - `projected_slippage_bps` number
  - `liquidity_manifold` object
    - `betti_0_fragmentation` integer
    - `betti_1_vortex_risk` integer
    - `flash_crash_potential` string
  - `recommended_split` object
    - `NASDAQ` number
    - `IEX` number
    - `ARCA` number

## Other responses

- `422`: Route refused — do not send the child order

---

[API](https://skmtc.dev/caleralabs/apis/financesec-api-reference.md) · [All operations](https://skmtc.dev/caleralabs/apis/financesec-api-reference/llms.txt) · [OpenAPI document](https://skmtc.dev/caleralabs/apis/financesec-api-reference/revisions/fed76f2ec6e5?raw)