10 Best API Mocking & Service Virtualization Tools (2026)
The 10 best API mocking and service virtualization tools in 2026, compared across spec-driven, standalone stub server, and enterprise virtualization categories.
101 articles
The full API testing library: strategy, automation, security, and tool comparisons for teams moving quality earlier in the delivery pipeline.
The 10 best API mocking and service virtualization tools in 2026, compared across spec-driven, standalone stub server, and enterprise virtualization categories.
What an API testing framework actually is, the three real categories to choose between, and a practical decision framework based on team language, CI/CD needs, and who should be able to read the tests.
The 11 best API load testing tools in 2026, compared on scripting language, protocol support, CI/CD fit, and pricing model — free/open source and commercial.
A practical method for testing LLM-backed features — deterministic shell versus probabilistic core, invariant tests, golden-set evals, regression on prompt changes, and what to run in CI.
The MCP threat model and the test cases that cover it — tool poisoning, confused deputy, token passthrough, session hijacking, DNS rebinding and excessive agency, with runnable assertions for each.
The 9 distinct types of API testing explained — what each one catches, when to run it in your pipeline, and how they fit together into a complete test strategy.
A practical template for writing API test cases, with worked examples across positive, negative, boundary, and security scenarios — and how each one maps directly onto an automated test.
MCP versus REST from a testing point of view — protocol, contract discovery, caller behaviour, error channels, security surface and what your existing API test skills carry over unchanged.
A complete API testing checklist across functional, security, and performance dimensions — every item explained, mapped to what actually breaks in production, with a downloadable version for CI/CD gating.