Humanize AI text without changing the facts.

# Submit a conversion job

curl -X POST https://api.apidocinfra.com/v1/documents/convert \
  -H "Authorization: Bearer $API_KEY" \
  -H "Idempotency-Key: request_123" \
  -F "[email protected]" \
  -F "output_format=pdf"

# The same request from Node or the browser

const form = new FormData();
form.append("file", new Blob([bytes]), "contract.docx");
form.append("output_format", "pdf");

const response = await fetch("https://api.apidocinfra.com/v1/documents/convert", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.DOCINFRA_API_KEY}`, "Idempotency-Key": "request_123" },
  body: form,
});
const job = await response.json(); // { job_id, document_id, status: "queued" }

# The same request with java.net.http

var boundary = "docinfra-" + UUID.randomUUID();
var body = MultipartBody.of(boundary, Map.of("output_format", "pdf"), Path.of("contract.docx"));
var request = HttpRequest.newBuilder(URI.create("https://api.apidocinfra.com/v1/documents/convert"))
    .header("Authorization", "Bearer " + System.getenv("DOCINFRA_API_KEY"))
    .header("Idempotency-Key", "request_123")
    .header("Content-Type", "multipart/form-data; boundary=" + boundary)
    .POST(body)
    .build();
var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
// 202 {"job_id": "...", "document_id": "...", "status": "queued"}

# The same request with urllib (standard library only)

import os
import urllib.request
import uuid

boundary = f"docinfra-{uuid.uuid4()}"
with open("contract.docx", "rb") as f:
    file_bytes = f.read()

body = (
    f"--{boundary}\r\n"
    'Content-Disposition: form-data; name="output_format"\r\n\r\n'
    "pdf\r\n"
    f"--{boundary}\r\n"
    'Content-Disposition: form-data; name="file"; filename="contract.docx"\r\n'
    "Content-Type: application/octet-stream\r\n\r\n"
).encode() + file_bytes + f"\r\n--{boundary}--\r\n".encode()

request = urllib.request.Request(
    "https://api.apidocinfra.com/v1/documents/convert",
    data=body,
    headers={
        "Authorization": "Bearer " + os.environ["DOCINFRA_API_KEY"],
        "Idempotency-Key": "request_123",
        "Content-Type": f"multipart/form-data; boundary={boundary}",
    },
)
with urllib.request.urlopen(request) as response:
    job = response.read()  # {"job_id": "...", "document_id": "...", "status": "queued"}

# 202 Accepted

{
  "job_id": "job_01J9Z3F8Q6W2XK4B7C9D0E1F2G",
  "document_id": "doc_01J9Z3F8Q5M8N3P4R5S6T7V8W9",
  "status": "queued",
  "created_at": "2026-09-23T15:58:46Z"
}

# Poll the job, then download the result

GET /v1/jobs/job_01J9Z3F8Q6W2XK4B7C9D0E1F2G
Authorization: Bearer $API_KEY

{
  "job_id": "job_01J9Z3F8Q6W2XK4B7C9D0E1F2G",
  "status": "completed",
  "document_id": "doc_01J9Z3F8Q5M8N3P4R5S6T7V8W9",
  "created_at": "2026-09-23T15:58:46Z",
  "completed_at": "2026-09-23T15:58:50Z",
  "download_url": "https://…/processed/…?X-Amz-Expires=300&X-Amz-Signature=…",
  "download_url_expires_at": "2026-09-23T16:03:52Z"
}

# Signed event delivered to your endpoint

POST https://your-app.com/webhooks/documents
Content-Type: application/json
X-DocInfra-Event-Id: evt_01J9Z3F8Q6W2XK4B7C9D0E1F2G
X-DocInfra-Timestamp: 1790179134
X-DocInfra-Signature: v1=5f2b...

{
  "id": "evt_01J9Z3F8Q6W2XK4B7C9D0E1F2G",
  "type": "document.completed",
  "created_at": "2026-09-23T15:58:50Z",
  "data": {
    "document_id": "doc_01J9Z3F8Q5M8N3P4R5S6T7V8W9",
    "job_id": "job_01J9Z3F8Q6W2XK4B7C9D0E1F2G",
    "status": "completed"
  }
}

# Rewrite a text so it reads naturally

curl -X POST https://api.apidocinfra.com/v1/text/rewrite \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "In today’s fast-paced world, it is important to note that our platform delivers value to 1,200 customers.",
    "mode": "natural",
    "intensity": "medium",
    "protected_terms": ["DocInfra"]
  }'

# The same rewrite request from Node or the browser

const response = await fetch("https://api.apidocinfra.com/v1/text/rewrite", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.DOCINFRA_API_KEY}`, "Content-Type": "application/json" },
  body: JSON.stringify({
    text: "In today’s fast-paced world, it is important to note that our platform delivers value to 1,200 customers.",
    mode: "natural",
    intensity: "medium",
    protected_terms: ["DocInfra"],
  }),
});
const result = await response.json(); // { rewrite_id, text, language, mode, intensity, metrics }

# The same rewrite request with java.net.http

var payload = """
    {"text": "In today’s fast-paced world, it is important to note that our platform delivers value to 1,200 customers.", "mode": "natural", "intensity": "medium", "protected_terms": ["DocInfra"]}""";
var request = HttpRequest.newBuilder(URI.create("https://api.apidocinfra.com/v1/text/rewrite"))
    .header("Authorization", "Bearer " + System.getenv("DOCINFRA_API_KEY"))
    .header("Content-Type", "application/json")
    .POST(HttpRequest.BodyPublishers.ofString(payload))
    .build();
var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
// 200 {"rewrite_id": "...", "text": "...", "language": "en", "mode": "natural", "intensity": "medium", "metrics": {...}}

# The same rewrite request with urllib (standard library only)

import json
import os
import urllib.request

payload = {
    "text": "In today’s fast-paced world, it is important to note that our platform delivers value to 1,200 customers.",
    "mode": "natural",
    "intensity": "medium",
    "protected_terms": ["DocInfra"],
}
request = urllib.request.Request(
    "https://api.apidocinfra.com/v1/text/rewrite",
    data=json.dumps(payload).encode(),
    headers={
        "Authorization": "Bearer " + os.environ["DOCINFRA_API_KEY"],
        "Content-Type": "application/json",
    },
)
with urllib.request.urlopen(request) as response:
    result = json.loads(response.read())  # {"rewrite_id": "...", "text": "...", "language": "en", "mode": "natural", "intensity": "medium", "metrics": {...}}

# 200 with the rewritten text and metrics

{
  "rewrite_id": "rwr_01J9Z3F8Q6W2XK4B7C9D0E1F2G",
  "text": "Our platform delivers value to 1,200 customers.",
  "language": "en",
  "mode": "natural",
  "intensity": "medium",
  "metrics": { "input_words": 18, "output_words": 7, "changed_percent": 61.1 }
}