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Application Programming Interface

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WHOIS is gone, RDAP replaced it, and a 404 does not mean what you think

WHOIS is gone, RDAP replaced it, and a 404 does not mean what you think

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5 min read
10,789 American employers publish their whole job list in one HTML page

10,789 American employers publish their whole job list in one HTML page

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3 min read
State of the x402 Bazaar: 34,062 listings, 2,158 hosts, and 94% missing a 'use when' line

State of the x402 Bazaar: 34,062 listings, 2,158 hosts, and 94% missing a 'use when' line

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4 min read
Idempotency and Retries When Calling a VAT Validation API

Idempotency and Retries When Calling a VAT Validation API

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10 min read
Integração com o iFood: o problema na homologação do developer

Integração com o iFood: o problema na homologação do developer

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8 min read
Claude Haiku 5.5 API Guide for Practical Workflows

Claude Haiku 5.5 API Guide for Practical Workflows

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8 min read
Your Profile Form Has Three Fields and Your API Accepts Twelve

Your Profile Form Has Three Fields and Your API Accepts Twelve

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2 min read
I Gave an AI Agent Access to External Services — Here’s What Broke

I Gave an AI Agent Access to External Services — Here’s What Broke

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2 min read
Background jobs still need the caller's authorization

Background jobs still need the caller's authorization

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1 min read
What building an API aggregator taught me about calling other people's APIs

What building an API aggregator taught me about calling other people's APIs

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3 min read
"Remote" doesn't mean "anywhere": I built an API that checks if you can actually apply

"Remote" doesn't mean "anywhere": I built an API that checks if you can actually apply

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3 min read
How to catch CSV import problems before they reach your database

How to catch CSV import problems before they reach your database

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1 min read
Resolving an Instagram handle during an OSINT lookup, in four lines of Python

Resolving an Instagram handle during an OSINT lookup, in four lines of Python

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2 min read
Defensive Tool API Design: Building Interfaces AI Agents Can’t Abuse

Defensive Tool API Design: Building Interfaces AI Agents Can’t Abuse

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5 min read
CORS Explained: Why Your Browser Blocks Your API

CORS Explained: Why Your Browser Blocks Your API

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3 min read
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