tai42-identity-redis

The Redis-backed api-key identity provider for the TAI ecosystem — an installable plugin that registers itself as the "redis" identity provider and resolves an inbound api key to an authenticated identity.

Importing the package registers the provider in tai42-contract's module-level identity-provider registry (register_identity_provider("redis", ...)), with no tai42_app handle involved — so it registers in any process that imports it, including ones that never start(). A deployment selects it by including redis in the access-control auth_providers list.

Its only tai-* dependencies are tai42-contract (the identity ABCs and the registry it registers through) and tai42-kit (the Redis client, the hash typing seams, and the api-key hash). It never imports the skeleton — the plugin is contract-facing, and the import is banned by ruff.

The TAI ecosystem

TAI is an open-source runtime for MCP tools, agents, and workflows. An identity provider is how the runtime answers "who is this caller?": it resolves an inbound credential to an authenticated identity, and access control decides what that identity may do. This package is one such provider (api keys over Redis); any package can back the same contract, so this repo is this provider's own full doc home, and the documentation site covers the platform-level story:

• Access-control concept: https://tai42.ai/concepts/access-control
• Build an identity provider (author guide): https://tai42.ai/guides/authors/identity-provider
• Ecosystem catalog: https://tai42.ai/reference/catalog

What it stores

The provider owns the whole api-key identity record in its own plain-Redis storage:

• ac:key:{sha256(raw)} — a Redis hash {"user_id", "description"} (the identity a raw key resolves to).
• ac:management:key:{user_id} — the user_id -> hash reverse lookup, so a user id resolves to its stored hash for revoke/edit without a scan.

Key material is never stored — only the SHA-256 hash of the raw key.

Surface

The provider implements tai42_contract.access_control.identity.ApiKeyIdentityProvider:

Requirements

Requires Python 3.13+ and any plain Redis — no modules required. The identity records are plain Redis hashes, so redis, valkey, or any module-less redis-server works. An unreachable or broken store is caught loudly by healthcheck() at startup rather than failing per-request.

Install

Requires Python 3.13+. Install from PyPI into the environment that runs the server:

uv add tai42-identity-redis

Or from source — clone this repo and add it as an editable dependency; the tai42-* dependencies resolve in-tree from the workspace.

git clone https://github.com/tai42ai/tai42   # next to your app checkout
cd /path/to/your/app
uv add --editable ../tai42/plugins/identity-redis

Development

uv venv --python 3.13
uv pip install --no-sources --editable ".[dev]"
uv run --no-sync ruff check .
uv run --no-sync ruff format --check .
uv run --no-sync pyright
uv run --no-sync pytest --cov --cov-report=term-missing

License

Apache-2.0. See LICENSE and NOTICE.