Everything you need to build on Ledgersync.
A self-serve developer portal, sandbox and live environments, a v3 REST API, signed webhooks, and a quickstart that takes you from signup to your first webhook in 15 minutes.
Set aside about 15 minutes. By the end you'll have a working bank connection in sandbox — transactions in your database and a webhook firing on every refresh.
A developer portal that does the work for you.
Developer Portal
Self-serve everything from https://portal.ledgersyncappv2.com.
- Self-serve signup with an approval gate
- Sandbox-or-Live environment switcher
- Onboarding form — env-aware: short for sandbox, full KYC-style for live (with Zoho CC for billing)
- Dashboard overview with an integration guide
- API keys page: create, list, rotate, scope — separate sandbox and live keys
- Webhooks page: subscribe a URL, choose event types, manage the signing secret, fire a test event
- Testing playbook with sandbox bank credentials
- API docs — Scalar viewer of the OpenAPI spec
- Error codes reference
Metrics page
Four tiles plus four charts, all with custom date ranges.
- Tiles: clients, accounts, webhook subscriptions, API keys
- Charts: API requests, connection health, webhook deliveries, top institutions
- Custom date-range selection on every chart
Sign in your way.
- Email and password — 10 character minimum, complexity rules, breach rejection via HaveIBeenPwned, last-5 password reuse blocked
- Magic Auth — 6-digit email code, passwordless
- Google sign-in
Every resource you'd expect, and a few you wouldn't.
Clients
- Full CRUD
Connections
- Initiate, list, get, refresh, delete
- Submit MFA form
Accounts
- List, get
Transactions
- List with filters
Statements
- List, download PDF
Webhook subscriptions
- Full CRUD
- Rotate signing secret
- Send test event
Institutions catalog
- List, search
Operations
- Poll status of async work
Metrics
- Summary, time series, connection health, top institutions, API usage, webhook delivery
API keys
- Full CRUD
- Rotate
Health probe
- Service health endpoint
Signed events for every meaningful change.
connection.initiatedconnection.requires_actionconnection.activeconnection.failedconnection.disconnectedconnection.refreshedconnection.capability_changedtransaction.createdstatement.availableaccount.refresh.completedaccount.refresh.failedwebhook.testScopes, signatures, and isolation by default.
- 13 scopes — read/write/manage variants for clients, connections, accounts, transactions, statements, webhooks, api-keys, and metrics
- HMAC-SHA256 webhook signatures with a Stripe-style timestamp prefix
- Headers: X-LS-Webhook-Signature, X-LS-Webhook-Timestamp, X-LS-Webhook-Event-Id, X-LS-Webhook-Event-Type
- 24-hour grace window after secret rotation — old and new signatures both valid
- Cloudflare Turnstile on signups
- Sandbox and live keys clearly prefixed (sk_test_ vs sk_live_)
- Per-environment isolated WorkOS auth context
Built to be debugged.
- Stripe-style two-level error envelope: error.code, error.type, error.category, doc_url, is_user_actionable, trace_id
- Per-env Postman collection auto-served (sandbox vs live, host-aware), every request ships with pm.test assertions
- Quickstart guide that walks from signup to first webhook in 15 minutes
- Test bank credentials documented per source — FinBank Decertified for Finicity, mxbank for MX
- OpenAPI 3 spec served from the portal
8 error categories
Every error carries a category so you can branch on it programmatically.
Aggregator coverage, active today.
Finicity
Test bank: FinBank Decertified
MX
Test bank: mxbank
Need the full reference? The developer portal serves the OpenAPI 3 spec, Scalar docs, and a per-environment Postman collection. Or head back to the API overview.
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