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Getting started
OverviewConceptsAuthenticationCreate an API key
API reference
EndpointsErrors
Audit Logs
Quick startIntegrationsEmbeddable viewerEvent schemaExporting eventsSDK reference
AI Attestations
Quick startAttestation schemaVerification & proofSDK reference
Events
OverviewSDK reference
Documents
OverviewSDK reference
Traces
OverviewSDK reference
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API Endpoints

RESTful endpoints for anchoring, attesting, and retrieving immutable records with cryptographic guarantees. All writes are append-only. All reads are deterministic.

Base URL
https://api.invoance.com/v1

Global API contract

All write endpoints enforce strict server-side validation. Payloads are canonicalized, signed, and verified before being committed to the immutable ledger. Requests over plain HTTP are rejected.

TransportHTTPS only, HTTP requests are rejected
AuthenticationRequired for all write and read endpoints
CanonicalizationCanonical payload computed server-side before signing
Key revocationInvalid or revoked keys are rejected immediately
IdempotencyRequired on all write endpoints via Idempotency-Key header
Authorization: Bearer invoance_live_XXXXXXXXXXXXXXXXXXXXXXXX
Idempotency-Key: 7f4c1c9d-5b8a-4d42-9e0b-xxxxxxxx
Content-Type: application/json

Endpoint reference

Endpoints are grouped by resource. Each group has its own reference page with request and response samples for every endpoint.

Key Introspection
1 endpoint

Validate an API key and see who it belongs to: organization, tenant, key metadata, and effective rate limit.

Documents
5 endpoints

Anchor document hashes into the append-only ledger, list and retrieve records, download originals, and verify hashes.

AI Attestations
8 endpoints

Sign AI inputs and outputs into immutable attestations, with public proof and signing-key endpoints for independent verification.

Event Ledger
4 endpoints

Ingest business events into the signed, append-only ledger, then list, retrieve, and verify them.

Traces
5 endpoints

Group events, documents, and AI attestations into traces, seal them, and retrieve verifiable proof bundles.

Audit Logs
20 endpoints

Per-customer audit trails: orgs and their lifecycle, signed events, webhook streams, hosted-viewer portals, and exports.

01Audit logs02AI decisions03Documents04Business events05Whole workflows
Invoance

Neutral proof infrastructure for records that must survive scrutiny. Signed at creation. Verifiable outside your dashboard.

ALL SYSTEMS OPERATIONALEvidence infrastructure · Online

Build

  • Developer overview
  • API endpoints
  • Official SDKs
  • Authentication
  • Verification model

Use Invoance

  • Why Invoance
  • How it works
  • Compliance teams
  • Finance teams
  • Pricing

Verify

  • Audit log
  • AI attestation
  • Document
  • Ledger event
  • Sealed trace

Company

  • Resources
  • Security
  • Partners
  • Contact
  • System status
FIELD NOTES / 01Proof patterns for teams building trust.

Invoance provides cryptographic proof and verification infrastructure. It does not provide legal, financial, compliance, or regulatory advice.

Read proof disclaimer

Records anchored with Invoance are cryptographically signed and designed to reveal tampering. Invoance verifies that a specific record existed in a particular form at a particular time; it does not assess the record's accuracy, authenticity, legality, or underlying contents. Public verification links can be resolved without authentication. Invoance is not a custodian of funds, a legal authority, or a regulated financial institution. Using Invoance does not by itself satisfy any legal or regulatory requirement. Consult qualified legal or compliance professionals regarding your obligations.

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