Works where you work

Striker connects to the tools you already use. Set everything up in the app, under Integrations.

Your mailbox

Starter and up

Emails go from your own Gmail, Outlook or other mailbox, and replies come back to your inbox.

HubSpot

Pro and up

Contacts and every sent email logged in your CRM.

Zapier, Make and n8n

Pro and up

Send replies, meetings, calls and sent emails to Slack, a spreadsheet or any CRM.

Read API

Pro and up

Your campaigns, contacts, replies and meetings, for your own systems.

Browser extension

Every plan

On any company website, open it in Striker to research it and write the first email.

Read API

Create a key in Integrations (it is shown once) and send it with each request as Authorization: Bearer stk_.... Lists are newest first. Optional query: limit (1 to 100, default 50) and since (a date). 5,000 requests a day per account.

GET /api/v1/me	The account the key belongs to: email, plan, credits used and limit. Use it to test a connection.
GET /api/v1/campaigns	Campaigns, newest first: the company, the reason for reaching out and where each contact stands.
GET /api/v1/replies	Replies and meetings, newest first, with the company and the contact.

curl https://www.getstriker.io/api/v1/replies?limit=10 \
  -H "Authorization: Bearer stk_your_key"

Webhooks

Add an https address in Integrations and choose the events. Striker sends a JSON POST for each one. Paste the address Zapier, Make or n8n gives you for a “catch hook” trigger.

email.sent	An email was sent from Striker
reply.received	A prospect replied
meeting.booked	A meeting was booked
call.completed	A call was wrapped up, with the summary and next step

{
  "id": "evt_...",
  "type": "reply.received",
  "created": "2026-10-22T09:00:00.000Z",
  "data": { "company": "...", "kind": "positive", "contact": { "name": "...", "title": "...", "email": "..." } }
}

Each request carries Striker-Signature: t=<seconds>,v1=<signature>: an HMAC SHA-256 of <t>.<raw body> with your endpoint's signing secret (shown once). Check it and refuse anything older than five minutes. Failed deliveries are tried again up to five times over about 15 hours.

Webhooks and the API come with the Pro plan and above. See pricing and trust and security.