OpenAPI Explorer & Spec Reference

Use this page as the single public index for NowToPrint machine-readable contracts. Each surface has one canonical download URL and a matching guide for operational context.

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Published Resources

Resource	Public URL	Generated reference	Best for
Partner REST API contract	/docs/api/openapi.yaml	Partner REST API	Postman import, SDK generation, and QA contract review
XJDF / PrintTalk contract	/docs/api/xjdf-openapi.yaml	XJDF & PrintTalk API	Standards integrations and capability tooling
Preflight Engine contract	/docs/api/preflight-openapi.yaml	Preflight Engine API	Queued PDF inspection clients for job submission and polling
XJDF Swagger preview	/docs/api/swagger-ui.html	XJDF integration guide	Browser-based inspection of the XJDF contract

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Partner REST API

Overview

The Partner API is the primary commercial integration surface for buyers, agencies, white-label partners, and marketplaces.

• Base URL: https://api.nowtoprint.com/api/v1
• Authentication: Authorization: Bearer <ntp_test_* or ntp_live_* key>
• Best for: estimates, RFQs, quote acceptance, orders, and operational webhooks

First request

curl -X POST https://api.nowtoprint.com/api/v1/estimate \
  -H "Authorization: Bearer ntp_test_your_key" \
  -H "Content-Type: application/json" \
  -d '{
    "category": "business_cards",
    "quantity": 500,
    "specifications": {
      "paperType": "coated-matte"
    }
  }'

Next reading

• Partner API overview
• Partner REST API reference
• Getting started
• Authentication

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XJDF / PrintTalk API

Overview

The XJDF and PrintTalk layer is designed for standards-based interoperability with MIS, ERP, and workflow systems.

• Route family: https://api.nowtoprint.com/api/v1/xjdf
• Authentication: bearer auth or X-API-Key, with mTLS in selected enterprise postures
• Best for: standards-based job exchange, capability discovery, and external workflow alignment

Explore in the browser

Use the published preview when you need a human-friendly contract walkthrough before importing the spec:

• XJDF & PrintTalk API reference
• Swagger UI preview
• Integration guide
• Master data model

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Preflight Engine API

Overview

The preflight surface is a queued validation contract for PDF inspection, job submission, and status polling.

• Route family: https://api.nowtoprint.com/api/v1
• Authentication: bearer token
• Best for: automated file validation, technical quality checks, and asynchronous analysis

Sample request

POST /api/v1/preflight HTTP/1.1
Host: api.nowtoprint.com
Authorization: Bearer ntp_live_xxxxxxxxxxxxxxxxxxxx
Content-Type: application/json

{
  "fileUrl": "https://cdn.example.com/artwork.pdf",
  "profile": "print_ready"
}

Sample response shape

{
  "jobId": "pref_01js3q7d9w4b2k8m1z0h3v6x7y",
  "status": "queued",
  "submittedAt": "2026-04-16T10:00:00.000Z",
  "links": {
    "self": "/api/v1/preflight/pref_01js3q7d9w4b2k8m1z0h3v6x7y"
  }
}

Generated reference

• Preflight Engine API reference

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Problem details and retries

NowToPrint surfaces integration failures through structured HTTP responses. In general:

• 400 means payload or schema mismatch
• 401 means missing or invalid credentials
• 403 means scope or entitlement mismatch
• 429 means back off and trust Retry-After
• 5xx means transient failure or dependency disruption

Use request IDs in logs, keep write operations idempotent, and wire webhooks before production.

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Change management

• Partner API public contract: v1
• XJDF integration layer: current public v1
• Preflight surface: current public v3
• New major route families are used for breaking changes
• Public contract files are updated before external integration guidance changes

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Related: API Reference | Partner API | XJDF API | Webhook Access & Delivery