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Application Programming Interface

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Your API is the door. Most people forget to lock it.

Your API is the door. Most people forget to lock it.

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4 min read
The Cheapest Request Is the One You Never Send: A Semantic Cache for Rate-Limited APIs

The Cheapest Request Is the One You Never Send: A Semantic Cache for Rate-Limited APIs

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6 min read
Building an API on Top of MVCC

Building an API on Top of MVCC

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11 min read
Designing APIs Where Permissions Are Part of the Type System

Designing APIs Where Permissions Are Part of the Type System

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12 min read
WebSocket Reconnection Done Right: Backoff, Jitter, and Replay

WebSocket Reconnection Done Right: Backoff, Jitter, and Replay

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10 min read
Sequential Retries Pass, Concurrent Duplicates Fail: Black-Box Testing for Idempotency-Key Races

Sequential Retries Pass, Concurrent Duplicates Fail: Black-Box Testing for Idempotency-Key Races

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3 min read
It Was A Choice #2: Person's name is the identity

It Was A Choice #2: Person's name is the identity

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2 min read
Enrich CRM Leads From a Domain Alone: Tech Stack, Socials, and Public Emails

Enrich CRM Leads From a Domain Alone: Tech Stack, Socials, and Public Emails

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4 min read
Tool Poisoning: How a Hidden Instruction in Your OpenAPI Spec Can Hijack an AI Agent

Tool Poisoning: How a Hidden Instruction in Your OpenAPI Spec Can Hijack an AI Agent

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6 min read
Seeding a Shopify development store by API — six corrections, a write that succeeds against nothing, and a throttle that hides in userErrors

Seeding a Shopify development store by API — six corrections, a write that succeeds against nothing, and a throttle that hides in userErrors

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4 min read
Idempotent APIs: Complete Guide to Building Reliable and Duplicate-Safe Distributed Systems

Idempotent APIs: Complete Guide to Building Reliable and Duplicate-Safe Distributed Systems

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5 min read
A Free-Tier LLM Gateway: Routing, Caching, and Failover in About 200 Lines

A Free-Tier LLM Gateway: Routing, Caching, and Failover in About 200 Lines

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5 min read
Improve AI Output with a News Feed: Ground LLM Answers in Live Coverage

Improve AI Output with a News Feed: Ground LLM Answers in Live Coverage

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6 min read
The portal said "Live." For a few hours the page kept saying the connector didn't exist.

The portal said "Live." For a few hours the page kept saying the connector didn't exist.

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6 min read
How do you recover webhooks when your backend is unavailable?

How do you recover webhooks when your backend is unavailable?

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1 min read
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