We’re excited to share the news about a powerful new feature for API users: response field selection. This addition puts you in control by allowing you to decide exactly which fields to extract when making data collection or enrichment requests using any of our APIs.
Whether you need the full record or just specific parts of it, this feature gives you the flexibility to work smarter and faster.
How it works
When sending a request, you can now specify the fields you want to receive. For example, instead of downloading an entire profile with dozens of attributes, you can choose just the name, company, and job title.
Here’s a snippet of a Multi-Source Company API request that only includes company_name data field:
curl -X 'GET'
'https://api.coresignal.com/cdapi/v2/company_multi_source/collect/{company_id}?fields=id&fields=company_name' \
-H "accept: application/json"
-H "apikey: {API Key}"If you don’t specify fields, the API will continue to return the full dataset by default. This way, nothing changes in your existing workflow unless you want it to. More examples can be found in the documentation.
Why it matters
- Efficiency at scale. Selecting only the fields you need makes each response lighter, which means smaller datasets, quicker downloads, and reduced storage overhead.
- AI-ready. With smaller payloads, AI-powered systems can interact with our APIs in a more cost-effective way. Since data size directly impacts token usage, field selection ensures you’re not paying extra for information you don’t use. By eliminating unnecessary data, you can accelerate development cycles, reduce expenses, and integrate data more seamlessly with AI agent flows and large language models.
- Optimized workflows. You can focus only on the information that’s most relevant to you, whether that’s enriching a CRM, training a model, or conducting targeted analysis.
Response field selection is a simple improvement with a big impact. It empowers you to customize downloads, speed up your processes, and get more value from every request.
Start using response field selection today and take full control of your data experience. Have any questions? We’re here to help.
