anyformat 0.6.1

Python SDK for the AnyFormat API

anyformat

Python SDK for the AnyFormat API. Build a document workflow with a fluent builder, run a file through it, and read typed results — including drawing the parser's layout boxes back onto the page.

pip install anyformat

from anyformat.sdk import Client
from anyformat.workflow import Schema

client = Client(api_key="af_...")  # or set ANYFORMAT_API_KEY

workflow = (
    client.workflow("Invoices")
    .parse()
    .extract([Schema.string("vendor", "Vendor name on the invoice.")])
    .create()
)

result = workflow.run("invoice.pdf").wait()
print(result.fields["vendor"].value)        # -> "Acme Corp"
result.parse.draw("out/")                    # -> out/page_1.png with boxes drawn

The client reads ANYFORMAT_API_KEY from the environment if you omit api_key. base_url defaults to https://api.anyformat.ai.

---

Concepts in 30 seconds

• client.workflow(name) returns a fluent builder. Chain verbs (.parse(), .classify(), .split(), .extract(), .validate()) then .create() to register it and get a Workflow.
• workflow.run(file) uploads a file and returns a Run. run.wait() polls until processing finishes and returns a Result.
• client.list_workflows() returns a page of Workflow handles (each .run()-able); client.delete_workflow(id) soft-deletes one and returns its id.
• result.fields is the extracted data; result.parse is the parser's output (markdown + per-block layout); result.raw is the full response.
• Each node's behaviour lives on its own result view — draw() is a method of result.parse because only the parser produces layout boxes.

---

Cookbook

Every recipe below is a complete, runnable script. They share this header:

from anyformat.sdk import Client
from anyformat.workflow import Schema, ClassifyCategory, SplitterRule, ValidationRule

client = Client(api_key="af_...")

1. Parse a document → markdown + blocks

A parse-only workflow turns any document into structured markdown plus a typed list of layout blocks (each with a bounding box, type, and confidence).

workflow = client.workflow("Plain parse").parse().create()
result = workflow.run("contract.pdf").wait()

print(result.parse.markdown)          # full document as markdown
print(result.parse.text)              # markdown with HTML/anchors stripped

for block in result.parse.blocks:
    print(block.page, block.type, block.parse_confidence, block.bbox)

2. Visualize the bounding boxes

result.parse.draw() renders every block's box onto its page and writes one PNG per page. Boxes are coloured by parse_confidence, matching the Studio: ≥80 emerald · 50–79 amber · <50 rose · unknown blue.

workflow = client.workflow("Parse + draw").parse().create()
result = workflow.run("invoice.pdf").wait()

paths = result.parse.draw("out/")     # ["out/page_1.png", "out/page_2.png", ...]
print(paths)

The page background is the document you ran — it's retained automatically, so you don't hand the file back. Options:

# Override the background (path or bytes) — useful if you ran from raw bytes:
result.parse.draw("out/", source="invoice.pdf")

# Higher-resolution raster:
result.parse.draw("out/", dpi=300)

# No source available → boxes are drawn on blank canvases (layout map only).

PDFs are rasterized per page; image files (PNG/JPG/TIFF) are drawn on directly.

3. Extract fields (linear parse → extract)

Schema is the field factory. Mix any field types in one extract.

workflow = (
    client.workflow("Invoice extraction")
    .parse()
    .extract([
        Schema.string("vendor", "Vendor name on the invoice."),
        Schema.float("total", "Grand total amount."),
        Schema.date("issued_on", "Invoice issue date."),
        Schema.boolean("is_paid", "Whether the invoice is marked paid."),
        Schema.integer("line_count", "Number of line items."),
        Schema.enum("currency", "Currency of the totals.", options=[
            Schema.option("USD", "US Dollar."),
            Schema.option("EUR", "Euro."),
        ]),
        Schema.object("line_items", "One row per line item.", fields=[
            Schema.string("sku", "Stock keeping unit."),
            Schema.string("description", "Line description."),
            Schema.float("amount", "Line amount."),
        ]),
    ])
    .create()
)

result = workflow.run("invoice.pdf").wait()
field = result.fields["vendor"]
print(field.value, field.confidence, [e.text for e in field.evidence])

Field types: string, integer, float, boolean, date, datetime, enum, multi_select, object (nested).

4. Classify, then extract per category

classify() adds a branching node. Each extract() after it must declare which category routes into it via branch= (the category id, or the object itself).

invoice = ClassifyCategory(id="INVOICE", name="Invoice", description="A vendor invoice.")
receipt = ClassifyCategory(id="RECEIPT", name="Receipt", description="A point-of-sale receipt.")

workflow = (
    client.workflow("Invoice or Receipt")
    .parse()
    .classify(invoice, receipt)
    .extract([Schema.string("vendor", "Vendor name.")], branch=invoice)     # object form
    .extract([Schema.string("merchant", "Merchant name.")], branch="RECEIPT")  # id form
    .create()
)

result = workflow.run("doc.pdf").wait()
for category in result.raw["classifications"]:
    print(category["category"], category["confidence"])

5. Split a multi-document file, then extract

split() carves one upload into sub-documents by rule. Extracts branch off the splitter rule id.

statements = SplitterRule(id="STMT", name="Statement", description="A bank statement.")
checks = SplitterRule(id="CHECK", name="Check", description="A scanned check.")

workflow = (
    client.workflow("Statement bundle")
    .parse()
    .split(statements, checks)
    .extract([Schema.string("account", "Account number.")], branch="STMT")
    .extract([Schema.float("amount", "Check amount.")], branch="CHECK")
    .create()
)

result = workflow.run("bundle.pdf").wait()
for split in result.raw["splits"]:
    print(split["name"], split["files"])

When you chain split() after classify(), tell the splitter which category feeds it with route_from=:

(
    client.workflow("Classify then split")
    .parse()
    .classify(invoice, receipt)
    .split(statements, checks, route_from=invoice)
    .extract([Schema.string("account", "Account number.")], branch="STMT")
    .create()
)

6. Validate extracted fields

validate() adds rules the model checks against the extracted values. It must follow an extract(); use branch= to target a specific extract in a multi-branch workflow.

workflow = (
    client.workflow("Invoice with checks")
    .parse()
    .extract([
        Schema.float("subtotal", "Subtotal before tax."),
        Schema.float("tax", "Tax amount."),
        Schema.float("total", "Grand total."),
    ])
    .validate(
        ValidationRule(id="totals", description="total must equal subtotal + tax.", severity="error"),
        ValidationRule(id="positive", description="All amounts must be positive.", severity="warning"),
    )
    .create()
)

7. Different file inputs

run() accepts a path string, a Path, or raw bytes.

from pathlib import Path

workflow.run("invoice.pdf")                       # path string
workflow.run(Path("scans") / "page.png")          # Path (PDF or image)
workflow.run(open("invoice.pdf", "rb").read())    # raw bytes

8. Async client

AsyncClient mirrors the sync API with await on create, run, and wait.

import asyncio
from anyformat.sdk import AsyncClient
from anyformat.workflow import Schema

async def main():
    client = AsyncClient(api_key="af_...")
    workflow = await (
        client.workflow("Async invoices")
        .parse()
        .extract([Schema.string("vendor", "Vendor name.")])
        .create()
    )
    run = await workflow.run("invoice.pdf")
    result = await run.wait()
    print(result.fields["vendor"].value)
    await client.aclose()

asyncio.run(main())

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CLI

The package installs an afx command for one-off parses without writing code:

export ANYFORMAT_API_KEY=af_...
afx parse invoice.pdf

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API quick reference

Call	Returns	Notes
Client(api_key, base_url=...)	Client	ANYFORMAT_API_KEY if api_key omitted
client.workflow(name)	builder	chain verbs, then .create()
.parse(mode="standard"|"agentic")	builder	exactly one per workflow
.classify(*categories)	builder	branching; needs parse() first
.split(*rules, route_from=...)	builder	route_from required after classify()
.extract(fields, branch=...)	builder	branch required after classify/split
.validate(*rules, branch=...)	builder	follows extract()
.create()	Workflow	registers the workflow
workflow.run(file)	Run	file: path | Path | bytes
run.wait(timeout=300, poll_interval=3)	Result	polls until done
result.fields	dict[str, ExtractedField]	.value, .confidence, .evidence
result.parse	ParseView | None	.blocks, .markdown, .text, .draw()
result.parse.draw(out_dir, source=None, dpi=150)	list[Path]	one PNG per page
result.raw	dict	full results payload