# Signalbase, free, 7-day trial, POST /csv-enrichment: Leadership change API

> Submit company lists for enrichment with funding, acquisition, hiring, job change, and investor intelligence

Signalbase's leadership change API on its 7-day trial plan. It costs $0.00 per 1,000 changes. It returns 1 of the 3 key fields we check: Company.
We rank 35 plans by price. [The Swarm's $99 monthly plan](https://datacircle.dev/leadership-change-apis/the-swarm/99-monthly-premium-50-post-v3-profiles-search/llms.txt) costs the least per 1,000 changes: as little as $0.000038. The Swarm's $99 monthly plan covers up to 2,592,000 pages a month at no extra cost. Each page holds 1,000 changes.

- This page: https://datacircle.dev/leadership-change-apis/signalbase/free-7-day-trial-post-csv-enrichment
- Get it: https://www.trysignalbase.com/pricing
- Request: `POST https://www.trysignalbase.com/api/v2/csv-enrichment`
- API key: with the plan, on https://www.trysignalbase.com/pricing
- Its API docs: https://docs.trysignalbase.com/api-reference/csv-enrichment/endpoint/post
- Sold by: Signalbase (https://www.trysignalbase.com)
- Checked: 2026-10-28

## In the answer

- Completeness: 33%
- Company: ✓

## Price

- $ per 1,000 changes: $0.00
- Per: result
- Billing: free

## Charges

- Also pays for: from the same budget: Get Funding Signals · Get Acquisition Signals · Get Job Change Signals · Get Hiring Signals · Get Investors · Get Companies · Search People · Successful webhook delivery

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Submit company lists for enrichment with funding, acquisition, hiring, job change, and investor intelligence

## Data

- Freshness: stored
- Keep data: no API terms
- Use data: “Not on the €99 plan, whose terms are own-use only. Redistribution and white-label API access are licensed separately, sized to your volume and scope in a conversation.”

## Plan

- Pay: $0
- You get: 500 credits
- Enough for: 500,000 results, once
- Expires: 7 days

## Rate limit

- Batch: 1,000

## Speed

- Answer: in the call or by polling

## The call

- You send: companies, one of companies[].company_name, companies[].website_url or companies[].linkedin_url. Optional: fileName, wait, timeout
- Method: POST
- Path: /csv-enrichment

## About the plan

- Plan: 7-day trial
- Who can get it: smaller recruitment agencies and solo recruiters running their own business development

## The 6 fields the plan's answer can hold

company name, company industry, company country, company employee count, credits used, credits remaining

## Signalbase's plans (3)

- [Signalbase, free, 7-day trial, POST /csv-enrichment](https://datacircle.dev/leadership-change-apis/signalbase/free-7-day-trial-post-csv-enrichment/llms.txt): $0.00 per 1,000, 33% complete, stored
- [Signalbase, €99 monthly, Pro, POST /csv-enrichment](https://datacircle.dev/leadership-change-apis/signalbase/99-monthly-pro-post-csv-enrichment/llms.txt): $0.056 per 1,000, 33% complete, stored
- [Signalbase, contact us, Custom, POST /csv-enrichment](https://datacircle.dev/leadership-change-apis/signalbase/contact-us-custom-post-csv-enrichment/llms.txt): 33% complete, stored

## Signalbase's calls for this API (2)

- `POST /csv-enrichment`: [Signalbase, free, 7-day trial, POST /csv-enrichment](https://datacircle.dev/leadership-change-apis/signalbase/free-7-day-trial-post-csv-enrichment/llms.txt)
- `GET /signals/job-changes`: [Signalbase, free, 7-day trial, GET /signals/job-changes](https://datacircle.dev/leadership-change-apis/signalbase/free-7-day-trial-get-signals-job-changes/llms.txt)

## Signalbase's APIs (6)

- [Signalbase: company discovery API pricing, 3 plans](https://datacircle.dev/company-discovery-apis/signalbase/free/llms.txt)
- [Signalbase: company enrichment API pricing, 3 plans](https://datacircle.dev/company-enrichment-apis/signalbase/free/llms.txt)
- [Signalbase: people search API pricing, 3 plans](https://datacircle.dev/people-search-apis/signalbase/free/llms.txt)
- [Signalbase: company funding API pricing, 3 plans, POST /csv-enrichment](https://datacircle.dev/company-funding-apis/signalbase/free-7-day-trial-post-csv-enrichment/llms.txt)
- [Signalbase: company funding API pricing, 3 plans, GET /signals/funding](https://datacircle.dev/company-funding-apis/signalbase/free-7-day-trial-get-signals-funding/llms.txt)
- [Signalbase: job postings API pricing, 3 plans, POST /csv-enrichment](https://datacircle.dev/job-posting-apis/signalbase/free-7-day-trial-post-csv-enrichment/llms.txt)
- [Signalbase: job postings API pricing, 3 plans, GET /signals/hiring](https://datacircle.dev/job-posting-apis/signalbase/free-7-day-trial-get-signals-hiring/llms.txt)
- [Signalbase: leadership change API pricing, 3 plans, POST /csv-enrichment](https://datacircle.dev/leadership-change-apis/signalbase/free-7-day-trial-post-csv-enrichment/llms.txt)

## Signalbase: leadership change API alternatives

- [The Swarm, free, 14-day free trial, POST /v3/profiles/fetch](https://datacircle.dev/leadership-change-apis/the-swarm/free-14-day-free-trial-post-v3-profiles-fetch/llms.txt): $0.00 per 1,000, 100% complete, 1 day
- [Autobound, free, POST /v1/companies/enrich](https://datacircle.dev/leadership-change-apis/autobound/free-post-v1-companies-enrich/llms.txt): $0.00 per 1,000, 100% complete, 1 day
- [ZoomInfo, free, POST /copilot/v1/companies/insights](https://datacircle.dev/leadership-change-apis/zoominfo/free-post-copilot-v1-companies-insights/llms.txt): $0.00 per 1,000, 100% complete
- [Datahyena, free](https://datacircle.dev/leadership-change-apis/datahyena/free/llms.txt): $0.00 per 1,000, 100% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-28.

- https://docs.trysignalbase.com/api-reference/csv-enrichment/endpoint/get.md
- https://docs.trysignalbase.com/api-reference/csv-enrichment/endpoint/post.md
- https://docs.trysignalbase.com/api-reference/csv-enrichment/introduction
- https://docs.trysignalbase.com/api-reference/monitors/introduction
- https://docs.trysignalbase.com/index.md
- https://docs.trysignalbase.com/llms.txt
- https://www.trysignalbase.com
- https://www.trysignalbase.com/llms.txt
- https://www.trysignalbase.com/pricing