Canonical events
Versioned schemas carry source identity, exact money, dates, dimensions, external IDs, and evidence.
Developer platform / source-derived contract
Send business events. Receive controlled financial state.
Integrate through one versioned contract with exact decimals, stable external identities, scoped credentials, atomic idempotency, typed errors, signed delivery, and a sandbox that can be reset without destroying its evidence history.
Send what happened in the business. Invarent applies approved accounting policy and returns accepted, held, rejected, posted, reconciled, and exception state.
Production contract
The runtime is the documentation source.
- Runtime operations
- 253generated from API source
- Canonical target
- 217/217operations represented
- Route mismatches
- 0contract-to-controller drift
- Financial browser writes
- 0all commands cross the API
Scoped credentials
OAuth client credentials and API keys carry tenant identity, scopes, lifecycle state, and rotation controls.
Atomic idempotency
A retry cannot create a second financial effect, and a changed payload cannot reuse an earlier key.
Signed webhooks
Ed25519 signatures, DNS revalidation, retries, dead letters, replay, and delivery evidence close the loop.
First controlled lifecycle
Provision, create, submit, approve, post, verify.
- 01
Provision a sandbox tenant
Create a legal entity, books, period, chart template, golden posted entry, and scoped integration credentials.
- 02
Create and submit the journal
Use an idempotency key and exact decimal lines. Submission freezes the content that will be reviewed.
- 03
Approve through a separate actor
The approval grant binds actor, scope, expiry, and the journal content hash. Self-approval fails closed.
- 04
Post and read the proof
Posting, balances, audit event, usage record, idempotent response, and webhook outbox commit in one transaction.
A controlled starting point
Start from the real production contract.
Use the hosted OpenAPI document and generated TypeScript or Python SDK, then prove the complete lifecycle inside an isolated sandbox.