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ledgerline
v2.0 · now with SSO

Audit logs for teams that ship.

Every action, every actor, every resource — captured at the edge, queryable in milliseconds, retained for as long as your auditors say. Ledgerline is the audit trail you would build yourself, if you had a quarter to spare.

npm i @ledgerline/sdk · 14-day trial · no card required

app.ledgerline.dev/events live
Events · 24h
48,212
p95 ingest (ms)
41
Recent events
Time Actor Action · resource Result
14:02:11 Mara Okafor user.role.updateorg/acme/members ok
14:01:58 ci-bot deploy.createsvc/api-gateway ok
13:59:40 Jonas Feld secret.rotatevault/prod/db ok
13:58:03 Priya Natarajan billing.plan.changeorg/acme review
13:57:22 203.0.113.9 auth.login.failsso/okta denied

Trusted by engineering teams at

  • NORTHWIND
  • kestrel_labs
  • quorum.io
  • HALYARD
  • Oberon Systems
  • tessellate

Product

Built for the audit you have not been asked for yet.

One SDK call per event. Ledgerline does the rest: capture, sign, index, retain, and hand your compliance lead a report before they finish asking.

Edge capture

Events are accepted at 34 points of presence and acknowledged in under 30 ms. Nothing sits in a queue on your side of the wire.

Query in milliseconds

A columnar index over actor, action, and resource. Ask “who touched prod secrets in March?” and get an answer, not a job id.

Tamper-evident

Every batch is hash-chained and signed. Verify any range offline with the open ledgerline verify tool — no account needed.

Retention by policy

Pick SOC 2, ISO 27001, HIPAA, or your own schedule per project. Legal holds freeze ranges without touching the rest.

Export anywhere

Stream to your SIEM, park Parquet in your own bucket, or pull a signed PDF for the auditor who still prefers paper.

SSO and roles

SAML and OIDC on every plan since 2.0. Viewer, auditor, and admin roles, scoped per project, provisioned with SCIM.

Integration

Wired in an afternoon.

Drop the SDK next to your existing logger. Ledgerline batches, retries, and signs on the client, so a flaky network never costs you an event.

  • Node, Go, Python, Rust, and a plain HTTP API
  • Typed event schemas, generated from your catalog
  • Terraform provider for projects and policies
Read the quickstart →
import { Ledgerline } from '@ledgerline/sdk'

const audit = new Ledgerline({ project: 'acme-prod' })

await audit.record({
  actor: req.user.id,
  action: 'user.role.update',
  resource: 'org/acme/members/' + target.id,
  meta: { from: 'viewer', to: 'admin' },
})
// → ack in 27ms · batch #a91f · signed

Pricing

Pay for seats, not for volume.

Unlimited events on every plan. Switch billing periods any time; yearly plans are billed up front and save about 20%.

save 20% yearly
Starter
For side projects and proofs of concept.

0 per seat / month

free forever · up to 3 seats

  • Unlimited events
  • 30-day retention
  • 1 project
  • Community support
Team popular
For product teams shipping to real customers.

29 per seat / month

billed monthly

  • Everything in Starter
  • 400-day retention
  • Unlimited projects
  • SSO (SAML / OIDC) + SCIM
  • SIEM and bucket exports
  • Email support, 1 business day
Enterprise
For regulated teams with their own auditors.

Custom annual contract

volume pricing from 50 seats

  • Everything in Team
  • Custom retention and legal holds
  • Single-tenant or EU region
  • Signed audit packs (SOC 2, ISO)
  • 99.99% SLA, named engineer

FAQ

Questions, answered.

Yes. We meter seats, not volume. The only soft limit is a fair-use ceiling of 50,000 events per second per project — above that we will ask you to talk to us about a dedicated ingest pool, and we will not bill you for the overage while we do.

Customers

What shipping teams say.

“Our SOC 2 auditor asked for six months of privileged-access history. I pasted a query and had a signed PDF before the call ended.”

Tomasz Wierzba Head of Platform, Halyard

“We replaced a home-grown Kafka topic, two Lambdas, and a spreadsheet. The SDK was one afternoon; the peace of mind was immediate.”

Ines Carvalho Staff Engineer, quorum.io

“The hash chain is what sold legal. They can verify a range on a laptop with no account and no network. That conversation used to take weeks.”

Devon Ashby CTO, Kestrel Labs

Ship the audit trail this sprint.

Free for three seats. No card, no sales call, no Kafka.

Read the docs