The Ocr API from LLM Gateway — 1 operation(s) for ocr.
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openapi: 3.2.0
info:
version: 1.0.0
title: LLM Gateway Ocr 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: OCR
paths:
/v1/ocr:
post:
operationId: v1_ocr
summary: OCR
description: Extract text and structure from a document or image as markdown using an OCR model.
security:
- bearerAuth: []
requestBody:
content:
application/json:
schema:
type: object
properties:
model:
type: string
description: ID of the OCR model to use.
example: mistral-ocr-latest
document:
anyOf:
- type: object
properties:
type:
type: string
enum:
- document_url
document_url:
type: string
description: URL or data URL of the PDF/document to process.
example: https://arxiv.org/pdf/2201.04234
document_name:
type: string
required:
- type
- document_url
- type: object
properties:
type:
type: string
enum:
- image_url
image_url:
anyOf:
- type: string
- type: object
properties:
url:
type: string
required:
- url
description: URL or data URL of the image to process, or an object with a `url` field.
required:
- type
- image_url
description: The document or image to run OCR on.
id:
type: string
pages:
anyOf:
- type: array
items:
type: integer
- type: string
description: Specific pages to process, as a list of page indices or a range string (e.g. '0-5').
include_image_base64:
type: boolean
description: Whether to return extracted images as base64 in the response.
image_limit:
type: integer
image_min_size:
type: integer
bbox_annotation_format:
type: object
additionalProperties: {}
document_annotation_format:
type: object
additionalProperties: {}
required:
- model
- document
responses:
'200':
description: OCR response.
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:
pages:
type: array
items:
type: object
properties:
index:
type: integer
markdown:
type: string
images:
type: array
items:
type: object
additionalProperties: {}
dimensions:
type:
- object
- 'null'
additionalProperties: {}
model:
type: string
document_annotation:
type:
- string
- 'null'
usage_info:
type: object
properties:
pages_processed:
type: integer
doc_size_bytes:
type:
- integer
- 'null'
description: OCR response payload returned by the upstream provider.
'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:
- OCR
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