LeakyCreds
NewInstant webhook alerts now available — notified within seconds of any credential detection.Learn more →

Developer Resources & API

Integrate LeakyCreds into your security workflows with our powerful API, webhooks, and real-time alerting system.

ENTERPRISE API SOLUTIONS

Custom integration support for your exact use case.

Every enterprise runs a different authentication and risk workflow. We can tailor API behavior, payload design, and rollout support around your security architecture.

  • Custom request/response contracts for your auth stack

  • Enterprise-grade SLAs, throughput planning, and deployment guidance

  • Hands-on onboarding for security, identity, and platform teams

BUILT FOR ENTERPRISE SECURITY TEAMS

Tell us your workflow. We will adapt the API.

From high-volume sign-in traffic to regulated environments, we provide a custom solution aligned to your controls and user experience goals.

CREDENTIAL VERIFICATION API

Protect sign-ins with hash-only checks.

When a user signs in or sets a new password, your app sends only the SHA256 hash to our API. The original password stays on your side and is never shared.

We check that hash against our exposure data and return a simple answer in real time: breached or not breached. You can then allow sign-in, force a reset, or trigger MFA.

Sub-100ms response

Real-time verification suitable for inline authentication flows without user-facing latency.

No plaintext storage

Only SHA256 hashes are sent for verification. Plaintext passwords are never transmitted, stored, or logged.

9B+ records checked

Verification runs against our full indexed repository, updated with 3M+ new records daily.

Breach context returned

Response includes source feed, breach date, and exposure count to inform your remediation logic.

POST /v1/verify

REST API

// Send SHA256 hash and get breached / not breached

fetch('https://api.leakycreds.com/v1/verify', {
method: 'POST',
headers: {
'X-API-Key': API_KEY,
'Content-Type': 'application/json'
},
body: JSON.stringify({
password_sha256: sha256Password
})
})

RESPONSE 200 OK

{
"breached": true,
"status": "match_found"
}

React in seconds, not days.

Traditional threat intelligence platforms batch-process findings and send daily digests. By the time you read the email, attackers have already acted on the credentials.

LeakyCreds fires a webhook the moment a credential matching your configuration is ingested — giving your team the fastest possible window to rotate passwords, revoke sessions, and block account takeover.

Fires within seconds of ingestion for high-confidence matches

Customisable JSON payload with full credential metadata

Integrates with Slack, PagerDuty, Splunk, and any HTTP endpoint

Configurable per-domain and per-application alert thresholds

Separate webhook endpoints for Organisation and Platform incidents

Webhook Event Stream — acmecorp.com

LIVE

Credential detected — Organisation

just now

[email protected]

CriticalLumma Stealer v2

Credential detected — Platform

3 min ago

[email protected] • app.acmecorp.com

CriticalTelegram Paste

Credential detected — Organisation

18 min ago

[email protected]

MediumRockYou2024

Credential detected — Platform

52 min ago

[email protected] • app.acmecorp.com

MediumBreachForums

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