---
title: "Pre-computed collision status for a lead (provider_id e.g. 'ACoAABCDEFG'): lists, campaigns, blacklisted, connected. Ref"
method: GET
path: "/api/v1/leads/{provider_id}/duplicates"
tags: ["leads", "intelligence"]
---

# Pre-computed collision status for a lead (provider_id e.g. 'ACoAABCDEFG'): lists, campaigns, blacklisted, connected. Ref

`GET /api/v1/leads/{provider_id}/duplicates`

## Request

- Base URL: `https://crispy.sh`
- URL: `https://crispy.sh/api/v1/leads/{provider_id}/duplicates`
- Auth: HTTP bearer

## Path parameters

- `provider_id` string, required

## Query parameters

- `refresh` boolean: If true, synchronously recompute before returning (slower, always fresh). Default false.

## Response `200`

Success

## Other responses

- `401`: Missing or expired API key
- `403`: Insufficient key scope or permission denied
- `429`: Rate limit exceeded

---

[API](https://skmtc.dev/crispy/apis/crispy-rest-api.md) · [All operations](https://skmtc.dev/crispy/apis/crispy-rest-api/llms.txt) · [OpenAPI document](https://skmtc.dev/crispy/apis/crispy-rest-api/revisions/6bed0974d9ce?raw)