---
title: "Protocol"
description: "The agent-identity-v1 contract, its versioned reference and the conformance material."
image: "https://docs.agentregistrar.dev/og/docs-default.png"
---

> Documentation Index
> Fetch the complete documentation index at: https://docs.agentregistrar.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Protocol

`agent-identity-v1` is the relying-party discovery contract, the brokered signup handshake and the optional signed receipt. The normative text lives at the versioned path `/agent-identity/v1/`. This page is a short entry point, not a second copy of the specification.

Current release: `v1.2.0`, released 2026-10-24. The wire protocol id stays `agent-identity-v1`. The release adds Contracts G (RP attestation), H (provider registration/status), and I (broker metadata/status), the optional provider verification credential, RP-signed receipts and authenticated abuse reporting.

## Start with the versioned reference

- [agent-identity-v1](/agent-identity/v1/): status, version, what the release contains and the five-step handshake.
- [Specification](/agent-identity/v1/specification/): the normative specification rendered from the pinned spec tag.
- [Scope boundaries](/agent-identity/v1/scope-boundaries/): the identity-versus-vendor rulebook.

## Look up a field or rule

- [Discovery fields](/agent-identity/v1/discovery-fields/): the published document field by field.
- [Assertion claims](/agent-identity/v1/assertion-claims/): the signed claims and a worked example.
- [Receipt and context](/agent-identity/v1/receipt-and-context/): the optional receipt, the context pointer and credential handoff.
- [Security](/agent-identity/v1/security/): prompt injection, SSRF, replay and key handling.
- [Conformance](/agent-identity/v1/conformance/): the relying-party checklist, validator and registry.
- [Versioning](/agent-identity/v1/versioning/): additive changes, breaking changes and deprecation.

## Implementation and release history

- [Implementation guide](/agent-identity/v1/implementation-guide/): the relying-party checklist.
- [Conformance validator](/agent-identity/v1/validator/): commands, flags, exit codes and JSON output.
- [Release notes and changelog](/agent-identity/v1/changelog/): `v1.2.0`, `v1.1.0` and `v1.0.0`.
- [JSON Schema](/agent-identity/v1/agent-signup.schema.json): the schema served at its canonical `$id`.

The canonical source is [`agentregistrar/spec`](https://github.com/agentregistrar/spec). The rendered normative pages are generated from tag `v1.2.0`; do not edit them by hand.

Source: https://docs.agentregistrar.dev/protocol/index.mdx