The Key API from LLM Gateway — 1 operation(s) for key.
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openapi: 3.2.0
info:
version: 1.0.0
title: LLM Gateway Key API
description: 'OpenAI-compatible LLM gateway: chat completions, embeddings, images, audio, video, moderation, OCR, rerank, web search and typed decisions across providers with one API key.'
servers:
- url: https://api.llmgateway.io
- url: http://localhost:4001
tags:
- name: Key
paths:
/v1/key:
get:
operationId: v1_key_retrieve
summary: Retrieve key status
description: Returns usage information for the API key used to authenticate the request, including the organization's dev plan allowance and weekly premium-model usage. Lets clients that only hold an API key surface remaining quota without a dashboard session. Deliberately excludes billing details and the key token itself.
security:
- bearerAuth: []
responses:
'200':
description: Status of the API key and its organization's dev plan.
headers:
RateLimit-Policy:
schema:
type: string
description: Quota policy as an HTTP Structured Fields list, e.g. "requests";q=60;w=60.
RateLimit:
schema:
type: string
description: Available quota and reset delay, e.g. "requests";r=59;t=60.
RateLimit-Limit:
schema:
type: string
description: Request limit for the current window.
RateLimit-Remaining:
schema:
type: string
description: Requests remaining in the current window.
RateLimit-Reset:
schema:
type: string
description: Seconds until the current window resets.
content:
application/json:
schema:
type: object
properties:
data:
type: object
properties:
label:
type: string
description: Description of the API key used for the request.
usage:
type: string
description: Total usage in USD accrued by this API key.
limit:
type:
- string
- 'null'
description: Usage limit in USD set on this API key, if any.
devPlan:
type: string
enum:
- none
- lite
- pro
- max
description: Dev plan tier of the organization this key belongs to. 'none' for pay-as-you-go organizations.
devPlanCreditsUsed:
type: string
description: Plan credits used in the current billing cycle, in USD.
devPlanCreditsLimit:
type: string
description: Plan credit allowance per billing cycle, in USD.
devPlanCreditsRemaining:
type: string
description: Plan credits remaining in the current billing cycle.
devPlanPremiumWeeklyLimit:
type: string
description: Weekly fair-use allowance for premium models, in USD of plan credits.
devPlanPremiumCreditsUsed:
type: string
description: Premium-model plan credits used in the current weekly window.
devPlanPremiumWeekResetsAt:
type:
- string
- 'null'
description: When the current premium weekly window resets (ISO 8601), or null when no window is active.
required:
- label
- usage
- limit
- devPlan
- devPlanCreditsUsed
- devPlanCreditsLimit
- devPlanCreditsRemaining
- devPlanPremiumWeeklyLimit
- devPlanPremiumCreditsUsed
- devPlanPremiumWeekResetsAt
required:
- data
'400':
description: Invalid request body or parameters.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'401':
description: Missing or invalid API key.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'402':
description: Insufficient credits or plan limits reached.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'403':
description: Forbidden request or upstream response.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'404':
description: Unknown model or upstream not-found response.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'408':
description: Request timeout.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'410':
description: Archived or unavailable project.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'413':
description: Request too large.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'415':
description: Unsupported media type.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'429':
description: Rate limited. Response headers describe only LLMGateway-enforced limits; upstream provider headers are not forwarded. Honor Retry-After when present.
headers:
RateLimit-Policy:
schema:
type: string
description: Quota policy as an HTTP Structured Fields list, e.g. "requests";q=60;w=60.
RateLimit:
schema:
type: string
description: Available quota and reset delay, e.g. "requests";r=59;t=60.
RateLimit-Limit:
schema:
type: string
description: Request limit for the current window.
RateLimit-Remaining:
schema:
type: string
description: Requests remaining in the current window.
RateLimit-Reset:
schema:
type: string
description: Seconds until the current window resets.
Retry-After:
schema:
type: string
description: Seconds to wait before retrying.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'500':
description: Internal server error.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'502':
description: Failed to connect to the upstream provider.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'503':
description: Service unavailable upstream response.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'504':
description: Upstream provider timeout.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
'529':
description: Gateway overloaded.
headers:
Retry-After:
schema:
type: string
description: Seconds to wait before retrying.
content:
application/json:
schema:
$ref: '#/components/schemas/OpenAIError'
tags:
- Key
components:
schemas:
OpenAIError:
type: object
properties:
error:
type: object
properties:
message:
type: string
type:
type: string
param:
type:
- string
- 'null'
code:
type:
- string
- 'null'
required:
- message
- type
- param
- code
required:
- error
description: OpenAI-compatible error object.
securitySchemes:
bearerAuth:
type: http
scheme: bearer
description: Bearer token authentication using API keys
externalDocs:
url: https://docs.llmgateway.io
description: LLMGateway Documentation