The Universal API for extracting B2B Sales Data

Deliverable API is the fastest way to embed powerful contact and company intelligence directly into your CRM, product, or revenue workflows—giving your team superpowers without switching tabs.

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Integrate in

Minutes

Build scalable verification workflows that improve data quality across your entire product.

Accurate by Design

Real-time verification ensures emails are valid before they ever reach your users.

Accurate by Design

Real-time verification ensures emails are valid before they ever reach your users.

Developer-First APIs

Clean endpoints, fast responses, and simple integration for engineering teams.

Developer-First APIs

Clean endpoints, fast responses, and simple integration for engineering teams.

Enterprise-Ready Scale

Handle millions of verifications daily with consistent performance and uptime.

Enterprise-Ready Scale

Handle millions of verifications daily with consistent performance and uptime.

Fast Response Time

Verify contacts in milliseconds – built for speed at scale.

Fast Response Time

Verify contacts in milliseconds – built for speed at scale.

Powerful APIs for

Every Usecase

Integrate Deliverable into your workflow with our comprehensive API suite

Verify Single Email

Submits an email for verification. Returns a task ID to check the verification status via the /verify/single/status endpoint.

curl --request POST \
  --url https://api.deliverable.co/gateway/verify/single \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "email": "user@example.com"
}
'

Verify Single Email

Submits an email for verification. Returns a task ID to check the verification status via the /verify/single/status endpoint.

Verify Bulk Email

Upload a CSV or TXT file containing a list of email addresses for bulk verification. Returns a file_id to track the processing status via /verify/bulk/status.

curl --request POST \
  --url https://api.deliverable.co/gateway/verify/bulk \
  --header 'Content-Type: multipart/form-data' \
  --header 'x-api-key: <api-key>' \
  --form file='@example-file' \
  --form fileName=my-email-list

Verify Bulk Email

Upload a CSV or TXT file containing a list of email addresses for bulk verification. Returns a file_id to track the processing status via /verify/bulk/status.

Get Email/File Status

Returns the processing status of a bulk verification file or task.

curl --request POST \
  --url https://api.deliverable.co/gateway/verify/single/status \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "task_id": "task_abc123xyz"
}
'