# Invoance

> Cryptographic proof infrastructure. Customers POST events, documents, and AI attestations to the API; the backend signs them with per-tenant Ed25519 keys, stores them in an append-only ledger, and exposes verification endpoints. Includes Audit Logs: signed, independently verifiable activity logs for B2B SaaS.

## Site overview

- [AI-readable homepage](https://www.invoance.com/agent): A section-by-section explanation of Invoance, its products, proof flow, use cases, and verification boundaries.

## Developer docs

- [Developer overview](https://www.invoance.com/api/docs/developers): Start here: what Invoance is, how the API is organized, and where to go next.
- [Core cryptographic concepts](https://www.invoance.com/api/docs/developers/concepts): Hashing, Ed25519 signing, canonicalization, and what independent verification means.
- [Authentication](https://www.invoance.com/api/docs/developers/authentication): How API keys authenticate requests and how scopes work.
- [Create an API key](https://www.invoance.com/api/docs/developers/api-keys): Create, scope, and manage API keys.
- [API endpoints reference](https://www.invoance.com/api/docs/developers/endpoints): Every REST endpoint with parameters and responses.
- [Key Introspection endpoint](https://www.invoance.com/api/docs/developers/endpoints/me): GET /v1/me: validate an API key and get the organization, tenant, key metadata, and rate limit behind it.
- [Document endpoints](https://www.invoance.com/api/docs/developers/endpoints/documents): Anchor document hashes, list and retrieve document events, download originals, and verify hashes.
- [AI Attestation endpoints](https://www.invoance.com/api/docs/developers/endpoints/ai-attestations): Create, list, retrieve, and verify signed AI attestations, plus the public proof and key discovery endpoints.
- [Event Ledger endpoints](https://www.invoance.com/api/docs/developers/endpoints/events): Ingest, list, retrieve, and verify signed business events.
- [Trace endpoints](https://www.invoance.com/api/docs/developers/endpoints/traces): Create and list traces, seal bundles with a composite hash, and fetch proof bundles.
- [Audit Log endpoints](https://www.invoance.com/api/docs/developers/endpoints/audit): Orgs, signed audit events, SIEM streams, portal sessions, exports, and the zero-code webhook receiver.
- [API error reference](https://www.invoance.com/api/docs/developers/errors): Error codes, what they mean, and how to handle them.
- [Audit Logs](https://www.invoance.com/api/docs/developers/audit): Signed, independently verifiable activity logs: ingest, hosted viewer, streaming, export, and verify. Includes the invoance.audit/1 event schema.
- [Audit Logs SDK reference](https://www.invoance.com/api/docs/developers/audit/sdk): The client.audit namespace for Python and Node, including offline verification.
- [Audit Log Event Schema (invoance.audit/1)](https://www.invoance.com/api/docs/developers/audit/event-schema): The frozen invoance.audit/1 envelope: a complete example, field reference, scalar metadata rules, and what gets signed.
- [Exporting Audit Log Events](https://www.invoance.com/api/docs/developers/audit/exporting-events): Async CSV or NDJSON exports of audit events: create with filters, poll, and download from a presigned URL.
- [Embeddable Audit Log Viewer](https://www.invoance.com/api/docs/developers/audit/viewer): Embed the audit log in your product with @invoance/audit-viewer: install, mint a portal session server-side, render the React component, theme with CSS variables.
- [Zero-Code Audit Log Integrations](https://www.invoance.com/api/docs/developers/audit/integrations): Point Clerk or Auth0 webhooks at Invoance for signed audit logs with no instrumentation: how it works, providers, and shared delivery semantics.
- [Clerk Integration](https://www.invoance.com/api/docs/developers/audit/integrations/clerk): Connect Clerk webhooks to Invoance: setup steps, the curated event map, and high-volume guidance.
- [Auth0 Integration](https://www.invoance.com/api/docs/developers/audit/integrations/auth0): Stream Auth0 tenant logs to Invoance: setup steps, the curated log-code map, and delivery notes.
- [AI Attestations](https://www.invoance.com/api/docs/developers/ai-attestations): Bind a model's input, output, and identity into one signed, independently verifiable record: ingest, retrieve, verify, and share a public proof.
- [AI Attestation Schema](https://www.invoance.com/api/docs/developers/ai-attestations/schema): The attestation request shape: type, payload, model context, subject, the three SHA-256 hashes, the canonical signed statement, and limits.
- [AI Attestation Verification & Proof](https://www.invoance.com/api/docs/developers/ai-attestations/verification): The verification ladder for attestations: hash checks, Ed25519 signature verification, the public proof endpoint, and pinned-key discovery.
- [AI Attestations SDK reference](https://www.invoance.com/api/docs/developers/ai-attestations/sdk): The client.attestations namespace for Python and Node: ingest, list, get, raw payload, and the three verify methods.
- [SDKs and libraries](https://www.invoance.com/api/docs/developers/sdks): Official Python and Node SDKs plus cURL examples for every endpoint.
- [Traces API](https://www.invoance.com/api/docs/developers/traces): Group events into sealed, cryptographically proven sequences.
- [Verification API](https://www.invoance.com/api/docs/developers/verification): Independently validate any proof or signed event.
- [API FAQ](https://www.invoance.com/api/docs/developers/faq): Common questions about the Invoance API.

Full text: https://www.invoance.com/llms-full.txt