Tag: API
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The schema is the contract
A schema is the list of every field an API has and what type each one holds. Here’s how to read one, and why it’s a contract both teams have to sign rather than documentation anyone can ignore.
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What GraphQL was actually built for
GraphQL wasn’t built to fix over-fetching. Facebook built it because the News Feed didn’t have an API at all — here’s the real origin story, from the source.
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When two tools can’t talk, a person becomes the API
When two tools don’t share an API, someone bridges them by hand. Here’s the arithmetic for pricing that hidden integration tax on your own workflow.
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What is an API? A plain-language guide
A plain-language guide to APIs for non-developers: what a request, endpoint, response, status code, key, and rate limit actually mean.
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Why your LLM bill exploded overnight (and how to regain control)
LLM bills spike overnight from retry storms and agent loops, not steady usage. Here’s how to enforce cost budgets and routing at one boundary.
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RAG Cost Optimization
RAG costs spiral when caching, retrieval, and model calls are decided locally by each team, centralizing control is what keeps AI spend predictable.
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The State of Federation 2026 Survey Is Open
WunderGraph’s 2026 State of Federation survey is open: 5-10 minutes on your GraphQL federation setup, plus new questions on AI and agent traffic.
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From 10+ Seconds to Under One: Solving Their Slowest Operation
A finance marketplace’s slowest GraphQL query took 10+ seconds to plan. Cosmo’s Cache Warmer cut that to under a second, a 12-18x speedup.
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When Prompt Injection Gets Real: Use GraphQL Federation to Contain It
Controls built for human users don’t hold up against LLMs. A federated GraphQL layer, not more prompt filtering, is what contains prompt injection.
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Cosmo Connect Tutorials for Router Plugins and gRPC Services
Tutorials for Cosmo Connect: build federated GraphQL APIs without a GraphQL server, using Router plugins and gRPC services.