How to Integrate with the Xero API: A Guide for B2B SaaS
A technical guide to building a production-grade Xero API integration, covering OAuth 2.0 token management, rate limits, webhook validation, and the 2026 pricing shift.
Step-by-step tutorials and practical how-to articles
A technical guide to building a production-grade Xero API integration, covering OAuth 2.0 token management, rate limits, webhook validation, and the 2026 pricing shift.
Compare the best Finch alternatives for employment data in 2026 plus a step-by-step migration checklist covering field mapping, auth, custom field pitfalls, and testing.
Sage Intacct requires two separate APIs, multi-layer auth, strict concurrency limits, and manual timezone handling. A technical guide covering the real challenges and build-vs-buy trade-offs for B2B SaaS teams.
A technical guide to integrating the Microsoft Dynamics 365 Business Central API. Covers OAuth 2.0 via Azure AD, API Pages vs OData, rate limits, and when to build vs. buy.
QuickBooks Desktop has no REST API. Learn how to navigate SOAP, qbXML, and the Web Connector — or skip the legacy stack entirely with a unified accounting API.
A practical guide to integrating with the QuickBooks Online API: OAuth 2.0 token management, rate limits, webhook quirks, and the new Intuit App Partner Program pricing.
Technical guide to building an AI auto-responder for Zendesk and Jira tickets — covering architecture, API quirks, rate limits, and how unified ticketing APIs accelerate shipping.
Architectural patterns for handling API rate limits and webhooks across dozens of SaaS integrations, with a worked Amplitude analytics integration example covering batching, deduplication, and compliance.
Learn how to normalize data models across CRMs and SaaS apps into a unified schema. Covers declarative mappings, custom fields, deduplication recipes with SQL examples, and canonical ID architecture.
A hands-on guide to building a white-labeled integration marketplace for your B2B SaaS - with code snippets, OAuth flows, UI patterns, a 3-week sprint plan, and a path to 100+ integrations.
Handle webhooks and real-time data sync from legacy APIs with copy-paste verification code, retry policies, idempotency patterns, JSONata transforms, and monitoring runbooks.
Architect a pass-through unified API with zero data retention, regional residency guarantees, PII masking, and published retention windows for enterprise audits.
Learn how to programmatically handle Salesforce custom fields (__c) and custom objects via API without writing per-customer integration code. Covers SOQL, Metadata API, and data-driven mapping.
REST APIs use incompatible pagination methods - cursor, offset, page, link headers. Learn how unified APIs normalize these into one interface your team codes against once.
Stop losing customers to silent OAuth failures. Build production-ready token refresh with distributed locks, proactive alarms, graceful degradation, and post-connection UI that maps backend events to user actions.
Integration debt compounds silently. Learn why 95% of IT leaders struggle with integrations and how declarative unified API architectures eliminate provider-specific code entirely.
AI agents burn through SaaS API quotas fast. Learn adaptive concurrency, batching, caching trade-offs, and operational patterns to handle rate limits at scale.
Build real-time calendar sync with no data storage. Hands-on code, webhook handling, and OAuth patterns for Google and Outlook via a unified pass-through API.
Architect multi-tenant OAuth token management: single-flight refresh, per-account mutex locks, AES-256-GCM encryption, and BYO-OAuth portability.
Pull real-time CRM data into LLM prompts via proxy APIs. Covers raw vs. normalized schemas, prompt templates for vendor fields, PII handling, MCP, and avoiding the connector tax.
Learn the scalable architectural pattern for handling Salesforce custom fields (__c) across enterprise customers using data-driven mapping instead of brittle per-customer code.
Production patterns for API rate limits and retries - Coupa token lifecycle, NetSuite concurrency semaphores for AI agents, exponential backoff at scale.
A technical guide to architecting two-way HubSpot sync that handles strict API rate limits, prevents infinite webhook loops, and normalizes HubSpot's nested schema without custom code.
Enterprise deals die when your API aggregator stores customer data. Here's a step-by-step guide to passing vendor security reviews - with checklists, technical verification steps, and the artifacts procurement actually demands.
Learn how to give AI agents read/write access to Salesforce and HubSpot. Compare custom LangChain tools, vendor MCP servers, and unified APIs for production CRM integration.
Prevent infinite loops in bi-directional API syncs. Concrete patterns for echo filtering, origin tagging, idempotent writes, delta sync with watermarks, and conflict resolution.
Fastest way to build a Salesforce integration for B2B apps: compare REST API, middleware, and unified APIs with a build-vs-buy decision matrix, timelines, and sales coaching.
A technical evaluation framework for choosing a unified API - covering CRUD support, custom fields, proxy escape hatches, webhooks, high-throughput pricing, and rate limit handling at scale.
A technical guide to building HIPAA-compliant API and AI agent integrations for healthcare SaaS — covering BAAs, encryption, MCP server isolation, function-calling security, and architecture patterns that minimize PHI exposure.
Compare Truto vs Rutter unified APIs for commerce and accounting. Side-by-side on writes, NetSuite depth, custom fields, AI agent support, caching, and pricing.
A step-by-step runbook for troubleshooting OAuth 2.0 invalid_grant errors in SaaS, plus fixes for redirect_uri_mismatch, invalid_client, and refresh races.
Custom MCP servers cost $50K–$150K per integration per year. Learn when to build vs. buy MCP infrastructure, and how managed MCP providers eliminate OAuth and maintenance overhead.
A technical guide to choosing a unified calendar API for Google Calendar, Outlook, and Apple Calendar in 2026. Real-time sync, provider parity, and MCP for AI agents.
A technical guide to AP automation API integration and Coupa procurement API integration: sync purchase orders, automate 3-way matching, handle attachments, and post payments across ERPs.
A technical deep dive into integrating ServiceNow via OAuth 2.0 Client Credentials, covering HRSD, ITSM, and the 2026 Zurich release features for AI agents.
Technical guide to real-time CRM sync: request-time unified APIs, latency SLAs, OAuth token handling, SOC 2 Type II and ISO 27001 for enterprise B2B SaaS.
Learn how to build scalable, multi-step AI agents using LangGraph and LangChain while solving the hardest part of agentic workflows: SaaS API integration.
Learn how to convert Notion pages to PDF programmatically using a single API request, bypassing the need for Puppeteer or complex recursive scripts.
GRC platforms need 40+ integrations to be viable, but maintaining them is an engineering nightmare. Here is the math behind why leaders are switching to Unified APIs.
Why point-to-point connectors fail for niche SaaS apps and how a config-driven Unified API architecture solves the 'long tail' problem for GRC platforms.
Automate the employee compliance lifecycle from hiring to offboarding. Learn how to use Unified APIs to sync ATS, HRIS, LMS, and Directory data for SOC 2 readiness.
SOC 2 audits are plagued by manual evidence gathering. Learn how to architect an automated 'Compliance Observer' using Unified APIs to link tickets, PRs, and builds.
Stop chasing manual screenshots for SOC 2 audits. Learn how to use Unified APIs to automate device posture checks, policy verification, and evidence collection.
A developer playbook for CRM/HRIS integrations plus a full accounting sync engine blueprint: queues, idempotency, CoA mapping, multi-entity, and HIPAA.
Integrating file uploads and downloads across different systems can be challenging. Learn more about how Truto makes this a breeze for developers in this post.
Discover how Truto uses a declarative pagination system to normalize 250+ APIs into a unified cursor-based format for efficient, real-time data integration.
Build native calendar integrations faster with Truto. Go from zero to a working multi-provider calendar integration in 1-3 days instead of months.
Best unified API for a startup shipping integrations fast? Compare Merge, Nango, Composio, Truto, and Unified.to with a persona-based decision guide.
Before delving deeper into the process of syncing data from SaaS apps, it's important to take a step back and examine the use cases.
Learn how to integrate Copper CRM using their REST API in Truto's Integration GPS Series. Save time with this comprehensive guide for developers.