Features · Webhooks

Wire voice events into your stack instantly

SvaraCall webhooks POST structured JSON on call lifecycle events — trigger Slack alerts, update data warehouses, or enqueue follow-up jobs without polling.

Set up a webhookAll features
  • Real-time
  • Signed payloads
  • Retry logic
  • Event filters

<1s

Typical delivery after call event

HMAC

Signed payloads for verification

Retry

Automatic backoff on 5xx responses

10+

Event types — start, end, transfer, opt-out

Problem

Polling call logs slows automations

Engineering cron jobs scrape dialer exports every hour. Payment systems learn about promise-to-pay too late. Indian ops teams want WhatsApp nudges and ledger updates the moment an AI call completes.

Today

How integrations work without webhooks

  1. 1Schedule batch exports from dialer to SFTP overnight.
  2. 2Write custom scrapers that break when APIs change.
  3. 3Miss hot leads because CRM updates lag by hours.
  4. 4No reliable signal when customers opt out mid-call.

With SvaraCall

How SvaraCall webhooks work

  1. 1Register HTTPS endpoints in workspace settings with event filters.
  2. 2SvaraCall POSTs signed JSON on call.started, call.ended, call.transferred, etc.
  3. 3Your service ACKs 200 — retries with backoff on failures.
  4. 4Payload includes call ID, disposition, transcript URL, and custom metadata.

Why event-driven voice wins

  • Real-time automations

    Trigger WhatsApp, SMS, or email the second disposition is set.

  • Custom stacks

    Connect internal ERP, ledger, or data lake without native CRM.

  • Reliable delivery

    Retries and dead-letter logs — no silent drops.

  • Secure verification

    HMAC signatures let you reject forged payloads.

Webhooks ROI

Disposition-to-downstream-system latency
Hours→sec

Disposition-to-downstream-system latency

Batch export jobs for integrated workflows
0

Batch export jobs for integrated workflows

Delivery target with retry policy
99.9%

Delivery target with retry policy

Typical webhook integration on pilot
1 day

Typical webhook integration on pilot

Integrate via webhooks

  1. Step 1

    Expose an endpoint

    HTTPS receiver with idempotency on call_id event pairs.

  2. Step 2

    Register in SvaraCall

    Select events, paste URL, store signing secret securely.

  3. Step 3

    Verify signatures

    Validate HMAC before processing — reject tampered payloads.

  4. Step 4

    Go live on one campaign

    Watch events flow; expand filters once stable.

Related integrations

Webhooks FAQs

Which events can webhooks subscribe to?
Call started, ringing, answered, ended, disposition set, transfer, opt-out, and recording ready — filter per endpoint.
How do we verify webhook authenticity?
Each payload includes an HMAC signature using your workspace secret — verify before processing.
What happens if our endpoint is down?
SvaraCall retries with exponential backoff and logs failures in the dashboard for replay.
Can one workspace have multiple webhook URLs?
Yes. Route different events to different services — CRM to one URL, data warehouse to another.

Automate on every event

Register a test webhook on pilot — watch call.end events hit your endpoint live.

Book a pilotAll features

Hear it call.

We'll place a live SvaraCall to your own phone, in Telugu, Hindi, or English.

Book a pilot

Get a demo call

Chat on WhatsApp