okra（okra 命令行）

OkraPDF

Upload a PDF, get an API. Extract tables, ask questions, get structured JSON — via MCP, CLI, or HTTP.

Designed for subagents. Every document is its own stateless endpoint. Fire off parallel queries to different documents — no shared state, no locks, no ordering issues. Ideal as a tool inside agent loops (Claude, GPT, custom orchestrators).

Setup

MCP (Claude Code, Cursor, OpenCode)

Add to ~/.claude/mcp.json or .cursor/mcp.json:

{
  "mcpServers": {
    "okra-pdf": {
      "type": "url",
      "url": "https://api.okrapdf.com/mcp",
      "headers": { "Authorization": "Bearer YOUR_API_KEY" }
    }
  }
}

CLI

npm install -g okrapdf
okra auth set-key YOUR_API_KEY

HTTP

All endpoints use https://api.okrapdf.com with header Authorization: Bearer $OKRA_API_KEY.

Get a free API key at okrapdf.com (Settings > API Keys).

Upload a PDF

CLI

okra extract invoice.pdf
okra extract https://arxiv.org/pdf/2307.09288
okra extract report.pdf --processor llamaparse
okra run report.pdf "What was total revenue?"     # upload + ask in one shot

Options: -o json|markdown|table, --processor, --tables-only, --text-only, -d <dir> (agentic workspace), -q (quiet, for piping)

MCP

upload_document(url: "https://example.com/report.pdf")
upload_document(url: "https://arxiv.org/pdf/2307.09288", wait: true)
upload_document(url: "https://example.com/invoice.pdf", page_images: "lazy")

Parameters: url (required), wait (default: true), document_id (optional), page_images (none/cover/lazy), processor

HTTP

# From URL
curl -X POST https://api.okrapdf.com/v1/documents \
  -H "Authorization: Bearer $OKRA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"url": "https://arxiv.org/pdf/2307.09288"}'

# From file
curl -X POST https://api.okrapdf.com/v1/documents \
  -H "Authorization: Bearer $OKRA_API_KEY" \
  -F "file=@report.pdf" -F "page_images=cover"

Response: {"document_id": "doc-abc123", "phase": "extracting", "pages_total": 42}

Check Status

CLI

okra status doc-abc123

MCP

get_document_status(document_id: "doc-abc123")

HTTP

curl https://api.okrapdf.com/v1/documents/doc-abc123/status \
  -H "Authorization: Bearer $OKRA_API_KEY"

Response: {"phase": "complete", "page_count": 42, "total_nodes": 318}

Documents must reach phase: "complete" before reading/asking. Use wait: true on upload (MCP) or poll status.

Read Content

CLI

okra read doc-abc123
okra page get doc-abc123 1
okra toc doc-abc123
okra tree doc-abc123
okra search doc-abc123 "revenue"

MCP

read_document(document_id: "doc-abc123")
read_document(document_id: "doc-abc123", pages: "1-5")
read_document(document_id: "arxiv:2307.09288")

document_id accepts: doc-abc123, arxiv:2307.09288, or https://arxiv.org/pdf/2307.09288.

HTTP

# Full markdown
curl https://api.okrapdf.com/v1/documents/doc-abc123/full.md \
  -H "Authorization: Bearer $OKRA_API_KEY"

# Specific page
curl "https://api.okrapdf.com/v1/documents/doc-abc123/pages/3" \
  -H "Authorization: Bearer $OKRA_API_KEY"

# All pages as JSON
curl https://api.okrapdf.com/v1/documents/doc-abc123/pages \
  -H "Authorization: Bearer $OKRA_API_KEY"

Ask Questions

CLI

okra chat doc-abc123
okra chat send doc-abc123 -m "What are the key findings?"

MCP

ask_document(document_id: "doc-abc123", question: "What was total revenue in 2024?")

Returns answer with page citations (page number + supporting snippet).

HTTP (OpenAI-compatible)

curl -X POST https://api.okrapdf.com/document/doc-abc123/chat/completions \
  -H "Authorization: Bearer $OKRA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "messages": [{"role": "user", "content": "What was total revenue in 2024?"}],
    "stream": false
  }'

Supports "stream": true for SSE streaming.

Extract Structured Data

CLI

okra extract report.pdf -o json -q | jq '.entities[] | select(.type == "table")'

MCP

extract_data(
  document_id: "doc-abc123",
  prompt: "Extract all line items from this invoice",
  json_schema: {
    "type": "object",
    "properties": {
      "line_items": {
        "type": "array",
        "items": {
          "type": "object",
          "properties": {
            "description": {"type": "string"},
            "quantity": {"type": "number"},
            "unit_price": {"type": "number"},
            "total": {"type": "number"}
          }
        }
      },
      "grand_total": {"type": "number"}
    }
  }
)

HTTP

curl -X POST https://api.okrapdf.com/document/doc-abc123/chat/completions \
  -H "Authorization: Bearer $OKRA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "messages": [{"role": "user", "content": "Extract all line items"}],
    "response_format": {
      "type": "json_schema",
      "json_schema": {
        "name": "invoice",
        "schema": {
          "type": "object",
          "properties": {
            "line_items": {"type": "array", "items": {"type": "object", "properties": {"description": {"type": "string"}, "amount": {"type": "number"}}}},
            "total": {"type": "number"}
          }
        },
        "strict": true
      }
    },
    "stream": false
  }'

Tables and Entities

CLI

okra tables doc-abc123
okra tables get doc-abc123 table-0
okra entities list doc-abc123
okra entities images doc-abc123
okra query doc-abc123 "table:has(revenue)"

HTTP

curl https://api.okrapdf.com/v1/documents/doc-abc123/entities/tables \
  -H "Authorization: Bearer $OKRA_API_KEY"

curl https://api.okrapdf.com/v1/documents/doc-abc123/entities \
  -H "Authorization: Bearer $OKRA_API_KEY"

Collections

Group documents and query across all of them at once.

Create and manage

CLI:

okra collections create "Q4 Earnings" -d "Quarterly filings" --docs doc-abc123,doc-def456
okra collections list                          # or: okra col ls
okra collections show "Q4 Earnings"
okra collections add "Q4 Earnings" doc-ghi789
okra collections remove "Q4 Earnings" doc-abc123
okra collections delete "Q4 Earnings"

HTTP:

# Create with seed documents
curl -X POST https://api.okrapdf.com/v1/collections \
  -H "Authorization: Bearer $OKRA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"name": "Q4 Earnings", "document_ids": ["doc-abc123", "doc-def456"]}'

# Add documents
curl -X POST https://api.okrapdf.com/v1/collections/col-xxx/documents \
  -H "Authorization: Bearer $OKRA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"document_ids": ["doc-ghi789"]}'

# List / get / delete
curl https://api.okrapdf.com/v1/collections -H "Authorization: Bearer $OKRA_API_KEY"
curl https://api.okrapdf.com/v1/collections/col-xxx -H "Authorization: Bearer $OKRA_API_KEY"
curl -X DELETE https://api.okrapdf.com/v1/collections/col-xxx -H "Authorization: Bearer $OKRA_API_KEY"

Query across documents

Two modes:

CLI:

okra chat -c "Q4 Earnings" -m "Compare revenue across companies"
okra chat "compare revenue" --doc doc-abc123,doc-def456

HTTP (fanout):

curl -X POST https://api.okrapdf.com/v1/collections/col-xxx/query \
  -H "Authorization: Bearer $OKRA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "What was total revenue in Q4?"}'

Response (NDJSON):

{"type":"start","query_id":"...","doc_count":7}
{"type":"result","doc_id":"doc-xxx","answer":"..."}
{"type":"done","completed":7,"failed":0}

HTTP (sandbox):

curl -X POST https://api.okrapdf.com/v1/collections/col-xxx/query \
  -H "Authorization: Bearer $OKRA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt": "Compare R&D spending. Show a table.", "mode": "sandbox"}'

Export

# NDJSON stream
curl -N "https://api.okrapdf.com/v1/collections/col-xxx/export?format=markdown" \
  -H "Authorization: Bearer $OKRA_API_KEY"

# Zip archive
curl -L "https://api.okrapdf.com/v1/collections/col-xxx/export?format=zip" \
  -H "Authorization: Bearer $OKRA_API_KEY" -o collection.zip

Exports

# CLI
okra extract report.pdf -o json -q > report.json

# HTTP
curl https://api.okrapdf.com/exports/doc-abc123/markdown -H "Authorization: Bearer $OKRA_API_KEY"
curl -o report.xlsx https://api.okrapdf.com/exports/doc-abc123/excel -H "Authorization: Bearer $OKRA_API_KEY"
curl -o report.docx https://api.okrapdf.com/exports/doc-abc123/docx -H "Authorization: Bearer $OKRA_API_KEY"
curl https://api.okrapdf.com/exports/doc-abc123/snapshot -H "Authorization: Bearer $OKRA_API_KEY"

Page Images

Deterministic, CDN-cached URLs:

https://res.okrapdf.com/v1/documents/{id}/pg_1.png
https://res.okrapdf.com/v1/documents/{id}/w_400,h_300/pg_1.png

Document Management

CLI

okra list
okra read doc-abc123
okra status doc-abc123
okra delete doc-abc123
okra auth set-key YOUR_API_KEY
okra auth whoami

HTTP

curl "https://api.okrapdf.com/v1/documents?limit=20" -H "Authorization: Bearer $OKRA_API_KEY"

Subagent & Parallel Patterns

OkraPDF is built for agent-to-agent use. Each document is an isolated Durable Object with its own SQLite — queries to different documents never contend. Run them in parallel freely.

As tools inside an agent loop

Map each document to a callable tool. The orchestrating agent picks which docs to query:

import { createOkra } from '@okrapdf/runtime';

const okra = createOkra({ apiKey: process.env.OKRA_API_KEY! });

const docs = [
  { id: 'doc-abc123', label: 'NVIDIA 10-K' },
  { id: 'doc-def456', label: 'AMD 10-K' },
  { id: 'doc-ghi789', label: 'Intel 10-K' },
];

// Each doc becomes a tool the agent can call
const sessions = Object.fromEntries(
  docs.map((d) => [d.label, okra.sessions.from(d.id)]),
);

// Execute in parallel when agent calls multiple tools at once
const results = await Promise.all(
  toolCalls.map(tc => sessions[tc.name].prompt(tc.input.question))
);

Fan-out: same question across N documents

// SDK — fire all in parallel, collect answers
const question = 'What was total revenue and YoY growth?';
const answers = await Promise.all(
  docIds.map(id => okra.sessions.from(id).prompt(question))
);

# curl — parallel background requests
for doc_id in doc-abc123 doc-def456 doc-ghi789; do
  curl -s -X POST "https://api.okrapdf.com/document/$doc_id/chat/completions" \
    -H "Authorization: Bearer $OKRA_API_KEY" \
    -H "Content-Type: application/json" \
    -d "{\"messages\": [{\"role\": \"user\", \"content\": \"$question\"}], \"stream\": false}" &
done
wait

# CLI — multi-doc in one command
okra chat "compare revenue" --doc doc-abc123,doc-def456,doc-ghi789

MCP subagent pattern (Claude Code)

When Claude Code spawns subagents, each can independently call OkraPDF MCP tools:

# Subagent 1: ask_document(document_id: "doc-abc123", question: "What was revenue?")
# Subagent 2: ask_document(document_id: "doc-def456", question: "What was revenue?")
# Subagent 3: ask_document(document_id: "doc-ghi789", question: "What was revenue?")
# All run concurrently — no contention

When to use which pattern

Piping and Scripting

# Batch extract
for pdf in *.pdf; do okra extract "$pdf" -o json -q > "${pdf%.pdf}.json"; done

# Fan-out: same question to multiple docs in parallel
for doc_id in doc-abc123 doc-def456 doc-ghi789; do
  curl -s -X POST "https://api.okrapdf.com/document/$doc_id/chat/completions" \
    -H "Authorization: Bearer $OKRA_API_KEY" \
    -H "Content-Type: application/json" \
    -d "{\"messages\": [{\"role\": \"user\", \"content\": \"What was total revenue?\"}], \"stream\": false}" &
done
wait

Available Processors

Error Codes

Links

• Documentation
• API Reference
• MCP Endpoint
• SDK