---
title: "Look up multiple professional email addresses in bulk (up to 50 per call) to get associated LinkedIn profiles."
method: POST
path: "/icypeas/api/reverse-email-lookups"
tags: ["Icypeas"]
---

# Look up multiple professional email addresses in bulk (up to 50 per call) to get associated LinkedIn profiles.

`POST /icypeas/api/reverse-email-lookups`

## Request

- Base URL: `https://api.orthogonal.com/mpp`
- URL: `https://api.orthogonal.com/mpp/icypeas/api/reverse-email-lookups`
- Auth: none declared
- TypeScript: <https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/docs/icypeas/api/reverse-email-lookups/post.ts> (a function with typed inputs; its response is checked against the schema)

## Request body

- object
  - `data` string[], required: Array of objects, each with an email field and optional custom object
  - `custom` object: Optional object with webhookUrl and/or externalId for tracking

## Response `200`

Successful response

## Other responses

- `402`: Payment Required (x402 / MPP / np)

## Changes

- **2026-11-08** `857e915717f4`: 1 breaking
  - added required request body

[Operation history](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/changes/icypeas/api/reverse-email-lookups/post.md)

---

[API](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace.md) - [All operations](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/llms.txt) - [OpenAPI document](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/revisions/857e915717f4?raw)