Error
A valid request URL is required to generate request examples{
"message": "<string>",
"rule": {
"scope": "global",
"id": "<string>",
"config_hash": "<string>",
"name": "<string>",
"description": "<string>",
"enabled": true,
"chain_rule": true,
"cel_expression": "<string>",
"targets": [
{
"weight": 0.5,
"provider": "<string>",
"model": "<string>",
"key_id": "<string>",
"ttft_timeout_ms": 150000
}
],
"fallbacks": [
"<string>"
],
"scope_id": "<string>",
"priority": 123,
"query": {},
"created_at": "2023-11-07T05:31:56Z",
"updated_at": "2023-11-07T05:31:56Z"
}
}{
"event_id": "<string>",
"type": "<string>",
"is_bifrost_error": true,
"status_code": 123,
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"event_id": "<string>"
},
"extra_fields": {
"routing_info": {
"provider": "anthropic",
"model": "<string>",
"key": "<string>",
"resolved_key_alias": {
"model_id": "<string>",
"model_name": "<string>",
"model_family": "<string>"
},
"is_fallback": true,
"primary_provider": "anthropic",
"primary_model": "<string>",
"requested_provider": "anthropic",
"requested_model": "<string>",
"server_side_fallback_model": "<string>"
},
"provider": "anthropic",
"original_model_requested": "<string>",
"resolved_model_used": "<string>",
"request_type": "<string>",
"mcp_request_type": "<string>",
"a2a_request_type": "<string>",
"a2a_agent_name": "<string>",
"error_type": "<string>",
"retry_after_ms": 150500,
"raw_request": "<unknown>",
"raw_response": "<unknown>",
"converted_request_type": "<string>",
"dropped_compat_plugin_params": [
"<string>"
],
"latency": 123,
"key_statuses": [
{
"key_id": "<string>",
"status": "success",
"provider": "anthropic",
"error": "<unknown>"
}
],
"mcp_auth_required": {
"kind": "<string>",
"mcp_client_id": "<string>",
"mcp_client_name": "<string>",
"message": "<string>",
"authorize_url": "<string>",
"session_id": "<string>",
"subject_token_missing": true,
"exchange_error": "<string>"
},
"billed_usage": {
"prompt_tokens": 123,
"prompt_tokens_details": {
"text_tokens": 123,
"audio_tokens": 123,
"image_tokens": 123,
"cached_read_tokens": 123,
"cached_write_tokens": 123
},
"completion_tokens": 123,
"completion_tokens_details": {
"text_tokens": 123,
"accepted_prediction_tokens": 123,
"audio_tokens": 123,
"citation_tokens": 123,
"num_search_queries": 123,
"reasoning_tokens": 123,
"image_tokens": 123,
"rejected_prediction_tokens": 123
},
"total_tokens": 123,
"tool_usage": {
"web_search": {
"num_requests": 123
}
},
"cost": {
"input_tokens_cost": 123,
"output_tokens_cost": 123,
"reasoning_tokens_cost": 123,
"citation_tokens_cost": 123,
"search_queries_cost": 123,
"request_cost": 123,
"total_cost": 123
}
}
}
}{
"event_id": "<string>",
"type": "<string>",
"is_bifrost_error": true,
"status_code": 123,
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"event_id": "<string>"
},
"extra_fields": {
"routing_info": {
"provider": "anthropic",
"model": "<string>",
"key": "<string>",
"resolved_key_alias": {
"model_id": "<string>",
"model_name": "<string>",
"model_family": "<string>"
},
"is_fallback": true,
"primary_provider": "anthropic",
"primary_model": "<string>",
"requested_provider": "anthropic",
"requested_model": "<string>",
"server_side_fallback_model": "<string>"
},
"provider": "anthropic",
"original_model_requested": "<string>",
"resolved_model_used": "<string>",
"request_type": "<string>",
"mcp_request_type": "<string>",
"a2a_request_type": "<string>",
"a2a_agent_name": "<string>",
"error_type": "<string>",
"retry_after_ms": 150500,
"raw_request": "<unknown>",
"raw_response": "<unknown>",
"converted_request_type": "<string>",
"dropped_compat_plugin_params": [
"<string>"
],
"latency": 123,
"key_statuses": [
{
"key_id": "<string>",
"status": "success",
"provider": "anthropic",
"error": "<unknown>"
}
],
"mcp_auth_required": {
"kind": "<string>",
"mcp_client_id": "<string>",
"mcp_client_name": "<string>",
"message": "<string>",
"authorize_url": "<string>",
"session_id": "<string>",
"subject_token_missing": true,
"exchange_error": "<string>"
},
"billed_usage": {
"prompt_tokens": 123,
"prompt_tokens_details": {
"text_tokens": 123,
"audio_tokens": 123,
"image_tokens": 123,
"cached_read_tokens": 123,
"cached_write_tokens": 123
},
"completion_tokens": 123,
"completion_tokens_details": {
"text_tokens": 123,
"accepted_prediction_tokens": 123,
"audio_tokens": 123,
"citation_tokens": 123,
"num_search_queries": 123,
"reasoning_tokens": 123,
"image_tokens": 123,
"rejected_prediction_tokens": 123
},
"total_tokens": 123,
"tool_usage": {
"web_search": {
"num_requests": 123
}
},
"cost": {
"input_tokens_cost": 123,
"output_tokens_cost": 123,
"reasoning_tokens_cost": 123,
"citation_tokens_cost": 123,
"search_queries_cost": 123,
"request_cost": 123,
"total_cost": 123
}
}
}
}{
"event_id": "<string>",
"type": "<string>",
"is_bifrost_error": true,
"status_code": 123,
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"event_id": "<string>"
},
"extra_fields": {
"routing_info": {
"provider": "anthropic",
"model": "<string>",
"key": "<string>",
"resolved_key_alias": {
"model_id": "<string>",
"model_name": "<string>",
"model_family": "<string>"
},
"is_fallback": true,
"primary_provider": "anthropic",
"primary_model": "<string>",
"requested_provider": "anthropic",
"requested_model": "<string>",
"server_side_fallback_model": "<string>"
},
"provider": "anthropic",
"original_model_requested": "<string>",
"resolved_model_used": "<string>",
"request_type": "<string>",
"mcp_request_type": "<string>",
"a2a_request_type": "<string>",
"a2a_agent_name": "<string>",
"error_type": "<string>",
"retry_after_ms": 150500,
"raw_request": "<unknown>",
"raw_response": "<unknown>",
"converted_request_type": "<string>",
"dropped_compat_plugin_params": [
"<string>"
],
"latency": 123,
"key_statuses": [
{
"key_id": "<string>",
"status": "success",
"provider": "anthropic",
"error": "<unknown>"
}
],
"mcp_auth_required": {
"kind": "<string>",
"mcp_client_id": "<string>",
"mcp_client_name": "<string>",
"message": "<string>",
"authorize_url": "<string>",
"session_id": "<string>",
"subject_token_missing": true,
"exchange_error": "<string>"
},
"billed_usage": {
"prompt_tokens": 123,
"prompt_tokens_details": {
"text_tokens": 123,
"audio_tokens": 123,
"image_tokens": 123,
"cached_read_tokens": 123,
"cached_write_tokens": 123
},
"completion_tokens": 123,
"completion_tokens_details": {
"text_tokens": 123,
"accepted_prediction_tokens": 123,
"audio_tokens": 123,
"citation_tokens": 123,
"num_search_queries": 123,
"reasoning_tokens": 123,
"image_tokens": 123,
"rejected_prediction_tokens": 123
},
"total_tokens": 123,
"tool_usage": {
"web_search": {
"num_requests": 123
}
},
"cost": {
"input_tokens_cost": 123,
"output_tokens_cost": 123,
"reasoning_tokens_cost": 123,
"citation_tokens_cost": 123,
"search_queries_cost": 123,
"request_cost": 123,
"total_cost": 123
}
}
}
}Routing Rules
Create routing rule
Creates a new CEL-based routing rule for intelligent request routing. Provider and model can be left empty to use the incoming request values. Only name and at least one target are required: scope defaults to global, priority to 0, enabled to true and chain_rule to false, and an empty cel_expression matches every request.
POST
/
api
/
routing
/
rules
Error
A valid request URL is required to generate request examples{
"message": "<string>",
"rule": {
"scope": "global",
"id": "<string>",
"config_hash": "<string>",
"name": "<string>",
"description": "<string>",
"enabled": true,
"chain_rule": true,
"cel_expression": "<string>",
"targets": [
{
"weight": 0.5,
"provider": "<string>",
"model": "<string>",
"key_id": "<string>",
"ttft_timeout_ms": 150000
}
],
"fallbacks": [
"<string>"
],
"scope_id": "<string>",
"priority": 123,
"query": {},
"created_at": "2023-11-07T05:31:56Z",
"updated_at": "2023-11-07T05:31:56Z"
}
}{
"event_id": "<string>",
"type": "<string>",
"is_bifrost_error": true,
"status_code": 123,
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"event_id": "<string>"
},
"extra_fields": {
"routing_info": {
"provider": "anthropic",
"model": "<string>",
"key": "<string>",
"resolved_key_alias": {
"model_id": "<string>",
"model_name": "<string>",
"model_family": "<string>"
},
"is_fallback": true,
"primary_provider": "anthropic",
"primary_model": "<string>",
"requested_provider": "anthropic",
"requested_model": "<string>",
"server_side_fallback_model": "<string>"
},
"provider": "anthropic",
"original_model_requested": "<string>",
"resolved_model_used": "<string>",
"request_type": "<string>",
"mcp_request_type": "<string>",
"a2a_request_type": "<string>",
"a2a_agent_name": "<string>",
"error_type": "<string>",
"retry_after_ms": 150500,
"raw_request": "<unknown>",
"raw_response": "<unknown>",
"converted_request_type": "<string>",
"dropped_compat_plugin_params": [
"<string>"
],
"latency": 123,
"key_statuses": [
{
"key_id": "<string>",
"status": "success",
"provider": "anthropic",
"error": "<unknown>"
}
],
"mcp_auth_required": {
"kind": "<string>",
"mcp_client_id": "<string>",
"mcp_client_name": "<string>",
"message": "<string>",
"authorize_url": "<string>",
"session_id": "<string>",
"subject_token_missing": true,
"exchange_error": "<string>"
},
"billed_usage": {
"prompt_tokens": 123,
"prompt_tokens_details": {
"text_tokens": 123,
"audio_tokens": 123,
"image_tokens": 123,
"cached_read_tokens": 123,
"cached_write_tokens": 123
},
"completion_tokens": 123,
"completion_tokens_details": {
"text_tokens": 123,
"accepted_prediction_tokens": 123,
"audio_tokens": 123,
"citation_tokens": 123,
"num_search_queries": 123,
"reasoning_tokens": 123,
"image_tokens": 123,
"rejected_prediction_tokens": 123
},
"total_tokens": 123,
"tool_usage": {
"web_search": {
"num_requests": 123
}
},
"cost": {
"input_tokens_cost": 123,
"output_tokens_cost": 123,
"reasoning_tokens_cost": 123,
"citation_tokens_cost": 123,
"search_queries_cost": 123,
"request_cost": 123,
"total_cost": 123
}
}
}
}{
"event_id": "<string>",
"type": "<string>",
"is_bifrost_error": true,
"status_code": 123,
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"event_id": "<string>"
},
"extra_fields": {
"routing_info": {
"provider": "anthropic",
"model": "<string>",
"key": "<string>",
"resolved_key_alias": {
"model_id": "<string>",
"model_name": "<string>",
"model_family": "<string>"
},
"is_fallback": true,
"primary_provider": "anthropic",
"primary_model": "<string>",
"requested_provider": "anthropic",
"requested_model": "<string>",
"server_side_fallback_model": "<string>"
},
"provider": "anthropic",
"original_model_requested": "<string>",
"resolved_model_used": "<string>",
"request_type": "<string>",
"mcp_request_type": "<string>",
"a2a_request_type": "<string>",
"a2a_agent_name": "<string>",
"error_type": "<string>",
"retry_after_ms": 150500,
"raw_request": "<unknown>",
"raw_response": "<unknown>",
"converted_request_type": "<string>",
"dropped_compat_plugin_params": [
"<string>"
],
"latency": 123,
"key_statuses": [
{
"key_id": "<string>",
"status": "success",
"provider": "anthropic",
"error": "<unknown>"
}
],
"mcp_auth_required": {
"kind": "<string>",
"mcp_client_id": "<string>",
"mcp_client_name": "<string>",
"message": "<string>",
"authorize_url": "<string>",
"session_id": "<string>",
"subject_token_missing": true,
"exchange_error": "<string>"
},
"billed_usage": {
"prompt_tokens": 123,
"prompt_tokens_details": {
"text_tokens": 123,
"audio_tokens": 123,
"image_tokens": 123,
"cached_read_tokens": 123,
"cached_write_tokens": 123
},
"completion_tokens": 123,
"completion_tokens_details": {
"text_tokens": 123,
"accepted_prediction_tokens": 123,
"audio_tokens": 123,
"citation_tokens": 123,
"num_search_queries": 123,
"reasoning_tokens": 123,
"image_tokens": 123,
"rejected_prediction_tokens": 123
},
"total_tokens": 123,
"tool_usage": {
"web_search": {
"num_requests": 123
}
},
"cost": {
"input_tokens_cost": 123,
"output_tokens_cost": 123,
"reasoning_tokens_cost": 123,
"citation_tokens_cost": 123,
"search_queries_cost": 123,
"request_cost": 123,
"total_cost": 123
}
}
}
}{
"event_id": "<string>",
"type": "<string>",
"is_bifrost_error": true,
"status_code": 123,
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"event_id": "<string>"
},
"extra_fields": {
"routing_info": {
"provider": "anthropic",
"model": "<string>",
"key": "<string>",
"resolved_key_alias": {
"model_id": "<string>",
"model_name": "<string>",
"model_family": "<string>"
},
"is_fallback": true,
"primary_provider": "anthropic",
"primary_model": "<string>",
"requested_provider": "anthropic",
"requested_model": "<string>",
"server_side_fallback_model": "<string>"
},
"provider": "anthropic",
"original_model_requested": "<string>",
"resolved_model_used": "<string>",
"request_type": "<string>",
"mcp_request_type": "<string>",
"a2a_request_type": "<string>",
"a2a_agent_name": "<string>",
"error_type": "<string>",
"retry_after_ms": 150500,
"raw_request": "<unknown>",
"raw_response": "<unknown>",
"converted_request_type": "<string>",
"dropped_compat_plugin_params": [
"<string>"
],
"latency": 123,
"key_statuses": [
{
"key_id": "<string>",
"status": "success",
"provider": "anthropic",
"error": "<unknown>"
}
],
"mcp_auth_required": {
"kind": "<string>",
"mcp_client_id": "<string>",
"mcp_client_name": "<string>",
"message": "<string>",
"authorize_url": "<string>",
"session_id": "<string>",
"subject_token_missing": true,
"exchange_error": "<string>"
},
"billed_usage": {
"prompt_tokens": 123,
"prompt_tokens_details": {
"text_tokens": 123,
"audio_tokens": 123,
"image_tokens": 123,
"cached_read_tokens": 123,
"cached_write_tokens": 123
},
"completion_tokens": 123,
"completion_tokens_details": {
"text_tokens": 123,
"accepted_prediction_tokens": 123,
"audio_tokens": 123,
"citation_tokens": 123,
"num_search_queries": 123,
"reasoning_tokens": 123,
"image_tokens": 123,
"rejected_prediction_tokens": 123
},
"total_tokens": 123,
"tool_usage": {
"web_search": {
"num_requests": 123
}
},
"cost": {
"input_tokens_cost": 123,
"output_tokens_cost": 123,
"reasoning_tokens_cost": 123,
"citation_tokens_cost": 123,
"search_queries_cost": 123,
"request_cost": 123,
"total_cost": 123
}
}
}
}Required Permissions
How permissions work
| Permission | Granted via |
|---|---|
RoutingRules:Create | RBAC role or API key scope |
Authorizations
ManagementBearerAuthBasicAuth
Management API authentication for /api/* endpoints. Use the Authorization header
with Bearer <token>, where <token> is one of:
- a Bifrost management API key,
- a dashboard session token issued by
POST /api/session/login, - base64 of
<admin-username>:<admin-password>(legacy equivalent ofBasicAuth).
Virtual keys (sk-bf-*) and the x-api-key header are not accepted on management APIs -
the sole exception is GET /api/governance/virtual-keys/quota, which is virtual-key-only.
Authentication alone is not sufficient in Bifrost Enterprise: each operation page shows a
Required Permissions table (Resource:Operation, for example Dashboard:View) above
its Authorizations section, and the caller's RBAC role or management API key scopes must
include what it lists, otherwise the request is rejected with 403 Forbidden.
A local admin — authenticated with the admin password, or any caller on a deployment with dashboard auth disabled — bypasses these checks and can call every management endpoint.
OSS setup lock. On Bifrost OSS, while dashboard auth is not active (no admin account,
or auth disabled), every management endpoint except the public ones (/health,
/api/version, /api/session/is-auth-enabled, /api/session/login, ...) requires the
operator's setup token in the X-Bifrost-Setup-Token header, in place of Authorization.
The token is set with setup_token in config.json or the BIFROST_SETUP_TOKEN
environment variable. A missing header returns 401, a wrong token 403. The header
stops working once dashboard auth is enabled. The dashboard instead trades the token once
for an HttpOnly bifrost_setup_session cookie via POST /api/session/setup.
See Required permissions for how
permissions are derived and which endpoints are exempt.
Body
application/json
- Option 1
- Option 2
Request to create a routing rule
Name of the routing rule
Weighted routing targets; weights must sum to 1; target is selected probabilistically at request time
Minimum array length:
1Show child attributes
Show child attributes
Scope level for the rule. The team, customer or virtual key named by scope_id must exist (400 otherwise); a user scope_id is not checked.
Available options:
global Optional description
Whether the rule is enabled
When true, a match does not end evaluation: the rule's resolved provider and model become the new context and every rule is evaluated again from the top. Each rule fires at most once per request, up to the chain's maximum depth (default 10).
CEL expression for matching. Empty or omitted matches every request.
Ordered fallback chain, tried after the selected target fails
A fallback in a routing rule's chain. Either the "provider/model" string ("provider/" keeps the incoming model), or an object that additionally pins a provider key.
Minimum string length:
1ID for the scope. Required when scope is not global; stored as null for global.
Priority for rule evaluation (lower number = higher priority). Must be unique within the same scope and scope_id; a duplicate returns 409.
Visual rule tree structure
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