Authentication

OpenViking Server supports three authentication modes with role-based access control: api_key, trusted, and dev. The mode is auto-detected if not explicitly configured.

Overview

OpenViking uses a two-layer API key system:

Key Type	Created By	Role	Purpose
Root Key	Server config (root_api_key)	ROOT	Full access + admin operations
User Key	Admin API	ADMIN or USER	Per-account access

All API keys are plain random tokens with no embedded identity. The server resolves identity by first comparing against the root key, then looking up the user key index.

Authentication Modes

Mode	server.auth_mode	Identity Source	Typical Use
API key mode	"api_key"	API key, with optional tenant headers for root requests	Standard multi-tenant deployment
Trusted mode	"trusted"	X-OpenViking-Account / X-OpenViking-User / optional X-OpenViking-Agent, plus root_api_key on non-localhost deployments. Role is looked up from APIKeyManager if the user exists.	Behind a trusted gateway or internal network boundary
Dev mode	"dev"	No authentication, always ROOT	Local development only

If auth_mode is not explicitly configured:

• If root_api_key is set (non-empty): auto-selects api_key mode
• If root_api_key is not set: auto-selects dev mode

Note: Setting root_api_key to an empty string "" is invalid. Either set a non-empty value or remove the setting entirely.

Setting Up (Server Side)

Configure the authentication mode in the server section of ov.conf:

{
  "server": {
    "auth_mode": "api_key",
    "root_api_key": "your-secret-root-key"
  }
}

Start the server:

openviking-server

Managing Accounts and Users

Normal requests in both api_key and trusted modes do not need Admin API as a prerequisite for ordinary reads, writes, search, or session access. Admin API is still the place to create accounts, register users, change roles, and issue user keys.

Use the root key to create accounts (workspaces) and users via the Admin API:

# Create account with first admin
curl -X POST http://localhost:1933/api/v1/admin/accounts \
  -H "X-API-Key: your-secret-root-key" \
  -H "Content-Type: application/json" \
  -d '{"account_id": "acme", "admin_user_id": "alice"}'
# Returns: {"result": {"account_id": "acme", "admin_user_id": "alice", "user_key": "..."}}

# Register a regular user (as ROOT or ADMIN)
curl -X POST http://localhost:1933/api/v1/admin/accounts/acme/users \
  -H "X-API-Key: your-secret-root-key" \
  -H "Content-Type: application/json" \
  -d '{"user_id": "bob", "role": "user"}'
# Returns: {"result": {"account_id": "acme", "user_id": "bob", "user_key": "..."}}

Trusted deployments can also call Admin API through a trusted gateway. There are two supported patterns:

• Present only the trusted deployment's root_api_key. For /api/v1/admin/*, the server treats the request as ROOT even without X-OpenViking-Account / X-OpenViking-User.
• Present X-OpenViking-Account + X-OpenViking-User for a registered gateway user. In that case the server looks up the effective role from the user registry.

Example using a registered gateway user:

# First, register the gateway admin (do this once in api_key mode)
curl -X POST http://localhost:1933/api/v1/admin/accounts \
  -H "X-API-Key: your-secret-root-key" \
  -H "Content-Type: application/json" \
  -d '{"account_id": "platform", "admin_user_id": "gateway-admin"}'

# Then promote it to root if it needs cross-account admin access
curl -X PUT http://localhost:1933/api/v1/admin/accounts/platform/users/gateway-admin/role \
  -H "X-API-Key: your-secret-root-key" \
  -H "Content-Type: application/json" \
  -d '{"role": "root"}'

# Then, in trusted mode, use that identity to call Admin API
curl -X POST http://localhost:1933/api/v1/admin/accounts \
  -H "X-API-Key: your-secret-root-key" \
  -H "X-OpenViking-Account: platform" \
  -H "X-OpenViking-User: gateway-admin" \
  -H "Content-Type: application/json" \
  -d '{
    "account_id": "acme",
    "admin_user_id": "alice",
    "isolate_user_scope_by_agent": true,
    "isolate_agent_scope_by_user": false
  }'

Using API Keys (Client Side)

OpenViking accepts API keys via two headers:

X-API-Key header

curl http://localhost:1933/api/v1/fs/ls?uri=viking:// \
  -H "X-API-Key: <user-key>"

Authorization: Bearer header

curl http://localhost:1933/api/v1/fs/ls?uri=viking:// \
  -H "Authorization: Bearer <user-key>"

Python SDK (HTTP)

import openviking as ov

client = ov.SyncHTTPClient(
    url="http://localhost:1933",
    api_key="<user-key>",
    agent_id="my-agent"
)

CLI (via ovcli.conf)

{
  "url": "http://localhost:1933",
  "api_key": "<user-key>",
  "account": "acme",
  "user": "alice",
  "agent_id": "my-agent"
}

When you use a regular user key, account and user are optional because the server can derive them from the key. They are recommended when you use trusted mode or a root key against tenant-scoped APIs.

CLI override flags

openviking --account acme --user alice --agent-id my-agent ls viking://

Using --sudo with Root API Key

The CLI supports configuring both api_key (for regular user operations) and root_api_key (for admin operations) in ovcli.conf:

{
  "url": "http://localhost:1933",
  "api_key": "<user-key>",
  "root_api_key": "<root-key>",
  "account": "acme",
  "user": "alice",
  "agent_id": "my-agent"
}

When you need to perform admin commands (admin, system, reindex), use the --sudo flag to elevate privileges:

# List all accounts (requires root privileges)
ov --sudo admin list-accounts

# Reindex content
ov --sudo reindex viking://

# System commands
ov --sudo system status

The --sudo flag:

• Only works with admin commands: admin, system, reindex
• Will error if used with non-admin commands
• Will error if root_api_key is not configured in ovcli.conf
• Uses root_api_key instead of api_key for the request

Accessing Tenant Data with Root Key

When using the root key to access tenant-scoped data APIs (e.g. ls, find, sessions), you must specify the target account and user. The server will reject the request otherwise. Admin API and system status endpoints are not affected.

curl

curl http://localhost:1933/api/v1/fs/ls?uri=viking:// \
  -H "X-API-Key: your-secret-root-key" \
  -H "X-OpenViking-Account: acme" \
  -H "X-OpenViking-User: alice"

Python SDK

import openviking as ov

client = ov.SyncHTTPClient(
    url="http://localhost:1933",
    api_key="your-secret-root-key",
    account="acme",
    user="alice",
)

ovcli.conf

{
  "url": "http://localhost:1933",
  "api_key": "your-secret-root-key",
  "account": "acme",
  "user": "alice",
  "agent_id": "my-agent"
}

Trusted Mode

Trusted mode skips user-key lookup and instead trusts explicit identity headers on each request:

{
  "server": {
    "auth_mode": "trusted",
    "host": "127.0.0.1"
  }
}

Rules in trusted mode:

• Normal data access does not require user registration or user-key provisioning first.
• X-OpenViking-Account and X-OpenViking-User are required on tenant-scoped requests.
• X-OpenViking-Agent is optional and defaults to default.
• /api/v1/admin/* is special: when no explicit identity is provided, trusted mode treats the request as ROOT. This is intended for trusted upstreams that authenticate only with the deployment's root API key.
• Role is determined by looking up the account/user in APIKeyManager. If the user exists, their configured role is used; otherwise it defaults to USER.
• Trusted identity comes from the headers, not from a user key. If root_api_key is configured, it still acts as proof that the caller is an approved trusted upstream.
• If root_api_key is also configured, every request must still provide a matching API key.
• Only expose this mode behind a trusted network boundary or an identity-injecting gateway.

Implications:

• Trusted mode is not development mode.
• Trusted mode does not use the Admin API as a prerequisite for ordinary reads, writes, search, or session access.
• Admin API remains available in trusted mode for users that have been registered with appropriate roles (root/admin).
• Trusted Admin API responses omit user_key from account creation and user registration results.
• root can create/delete accounts and change roles; admin can manage users inside its own account; user cannot call Admin API.
• To use Admin API in trusted mode, first register the gateway's service account with the appropriate role using the Admin API in api_key mode.

curl

curl http://localhost:1933/api/v1/fs/ls?uri=viking:// \
  -H "X-OpenViking-Account: acme" \
  -H "X-OpenViking-User: alice" \
  -H "X-OpenViking-Agent: my-agent"

Python SDK

import openviking as ov

client = ov.SyncHTTPClient(
    url="http://localhost:1933",
    account="acme",
    user="alice",
    agent_id="my-agent",
)

Dev Mode

When auth_mode = "dev" (or auto-detected when no root_api_key is configured), authentication is disabled. All requests are accepted as ROOT with the default account. This is only allowed when the server binds to localhost (127.0.0.1, localhost, or ::1). If host is set to a non-loopback address (e.g. 0.0.0.0) in dev mode, the server will refuse to start.

{
  "server": {
    "host": "127.0.0.1",
    "port": 1933
  }
}

Or explicitly:

{
  "server": {
    "auth_mode": "dev",
    "host": "127.0.0.1",
    "port": 1933
  }
}

Security note: The default host is 127.0.0.1. If you need to expose the server on the network, you must configure root_api_key.

Roles and Permissions

Role	Scope	Capabilities
ROOT	Global	All operations + Admin API (create/delete accounts, manage users)
ADMIN	Own account	Regular operations + manage users in own account
USER	Own account	Regular operations (ls, read, find, sessions, etc.)

In trusted mode, ordinary tenant requests default to USER unless the account/user is registered with a higher role. Admin routes also allow a trusted ROOT fallback when no explicit identity is provided.

Unauthenticated Endpoints

The /health endpoint never requires authentication. This allows load balancers and monitoring tools to check server health.

curl http://localhost:1933/health

Admin API Reference

Method	Endpoint	Role	Description
POST	/api/v1/admin/accounts	ROOT	Create account with first admin
GET	/api/v1/admin/accounts	ROOT	List all accounts
DELETE	/api/v1/admin/accounts/{id}	ROOT	Delete account
POST	/api/v1/admin/accounts/{id}/users	ROOT, ADMIN	Register user
GET	/api/v1/admin/accounts/{id}/users	ROOT, ADMIN	List users
DELETE	/api/v1/admin/accounts/{id}/users/{uid}	ROOT, ADMIN	Remove user
PUT	/api/v1/admin/accounts/{id}/users/{uid}/role	ROOT	Change user role
POST	/api/v1/admin/accounts/{id}/users/{uid}/key	ROOT, ADMIN	Regenerate user key

Related Documentation

• Multi-Tenant - Capabilities, sharing boundaries, and integration patterns
• Configuration - Config file reference
• Deployment - Server setup
• API Overview - API reference