Deep dives into API architecture, integration patterns, and engineering best practices
A proxy API handles auth, pagination, and rate limits for third-party APIs. Learn how it differs from an API gateway, when to use it, and how it fits into SaaS integration architecture.
A deep dive into linked account architecture in unified APIs — covering OAuth token management, tenant-specific overrides, encryption, and per-connection pricing traps.
Directory integrations connect your SaaS app to customer identity providers like Okta and Entra ID for automated user provisioning and deprovisioning. Learn the architecture.
A technical guide for engineering teams integrating the Lever API. Covers OAuth 2.0 token lifecycle, offset pagination, rate limits, webhooks, and the Opportunity data model.
A technical architecture guide for integrating Stripe with accounting platforms like NetSuite, QuickBooks, and Xero — covering payouts, fees, revenue recognition, and unified APIs.
A technical architecture guide for integrating with the Intercom API — covering OAuth quirks, rate limits, cursor pagination, webhook verification, and how to skip the build entirely.
A technical guide to integrating with the ServiceNow REST API in 2026 — covering OAuth 2.0 Client Credentials setup, scoped roles, rate limits, and architectural best practices for B2B SaaS teams.
A practical guide to integrating with the Greenhouse API — covering Harvest, Ingestion, and Onboarding APIs, auth quirks across v1/v2/v3, RFC-5988 pagination traps, rate limits, and how to ship faster.
A complete guide to building a HubSpot integration for AI agents and apps - OAuth scopes, write/upsert APIs, deduplication, Search API limits, and the build vs. buy decision.
Notion's block-based API requires recursive traversal, handles just 3 requests/second, and caps payloads at 1,000 blocks. Here's how to architect a production-ready integration.
A technical guide to integrating with the SharePoint API in 2026 — covering Microsoft Graph hierarchies, OAuth with Entra ID, File Picker v8 pitfalls, rate limits, and pagination.
Engineering guide to the Zoho Books API: regional domains, the silent 20-refresh-token limit, 100 req/min rate caps, and when to use a unified accounting API.
A technical guide to integrating with the Dynamics 365 Dataverse Web API — covering Azure AD OAuth setup, OData quirks, Service Protection rate limits, and architectural shortcuts.
Broken integrations are a top driver of B2B SaaS churn. Learn how declarative configs, automated token management, and override hierarchies turn integrations into a retention driver.
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.
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 direct technical comparison of Merge and Apideck for B2B SaaS teams — covering architecture, pricing math, customization limits, and real-time data gaps.
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.
API deprecations drain engineering time. Learn monitoring, contract tests, and declarative architecture to absorb breaking changes across 50+ integrations.
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.
Compare the best integration platforms for connecting LangChain and LlamaIndex agents to external SaaS APIs. Covers Composio, StackOne, Truto, and key architectural trade-offs for production AI agents.
B2B SaaS companies are ditching Zapier for customer-facing integrations. Here's why task-based pricing, UX friction, and technical ceilings are driving the migration to unified APIs.
Learn how to normalize pagination, errors, and rate limits across 50+ APIs with end-to-end examples: OAuth setup, real-time unified API calls, webhooks, and enterprise retry patterns.
Solve OAuth token race conditions, implement proactive refresh, encrypt credentials, and build a dual-layer API pattern that prevents vendor lock-in.
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.
Evaluating unified APIs? Understand the security risks of third-party data caching, credential exposure, and webhook vulnerabilities — and how to pass enterprise InfoSec reviews.
Compare integration platforms for high-volume API workloads with cost benchmarks, latency analysis, and rate-limit strategies. See what 2M+ monthly requests actually costs across pricing models.
Compare embedded iPaaS and unified APIs for B2B SaaS integrations. Learn the real architectural trade-offs, maintenance costs, and when to use each approach.
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.
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.
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.
Learn how to securely connect AI agents to SaaS platforms and financial APIs like Plaid. Covers least-privilege scoping, zero-storage proxying, token lifecycle management, and human approval flows.
Handle webhooks and real-time data sync from legacy APIs with copy-paste verification code, retry policies, idempotency patterns, JSONata transforms, and monitoring runbooks.
AI agents burn through SaaS API quotas fast. Learn adaptive concurrency, batching, caching trade-offs, and operational patterns to handle rate limits at scale.
Third-party API failures destroy enterprise SLAs. Learn the architectural patterns - pass-through, caching, declarative pipelines - that protect your uptime, plus how to evaluate unified API vendors for enterprise SLA and support.
Learn the scalable architectural pattern for handling Salesforce custom fields (__c) across enterprise customers using data-driven mapping instead of brittle per-customer code.
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.
The top developer tools for B2B SaaS in 2026 compared: AI IDEs (Cursor, Copilot, Windsurf), deployment platforms (Vercel, Cloudflare), feature flags (LaunchDarkly, Statsig), unified APIs, and MCP tooling - with pros/cons and selection checklists.
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.
Learn production patterns for API rate limits and retries across SaaS APIs like Coupa - from token lifecycle management and per-tenant enforcement to exponential backoff at scale.
Compare the best unified APIs and MCP server platforms for AI agents connecting to enterprise SaaS in 2026. Covers deployment models, security architecture, performance benchmarks, and real integration patterns.
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.
Learn how to architect a pass-through API proxy with zero data retention to pass enterprise SIG Core reviews and close B2B SaaS deals faster.
Enterprise deals stall when integration tools cache customer data. Learn how pass-through architectures eliminate sub-processor risk for SOC 2, HIPAA, and GDPR - with concrete guidance for financial data compliance.
A practical guide for B2B SaaS teams choosing between embedded iPaaS, unified APIs, and declarative integration architecture to ship enterprise integrations fast.
Enterprise deals die when your integration layer fails security review. Here's how to evaluate partners for white-label OAuth, zero-data retention, and VPC deployment.
Moving upmarket to enterprise? Your SMB-era integrations won't survive. Learn why in-house builds and embedded iPaaS fail, and how declarative unified APIs solve the compliance and scale problem.
Three approaches exist for API integrations without custom code. This guide exposes the hidden costs, compares architectures, and shows which one truly eliminates provider-specific code.
Prevent infinite loops in bi-directional API syncs. Concrete patterns for echo filtering, origin tagging, idempotent writes, delta sync with watermarks, and conflict resolution.
