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Application Programming Interface

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Give your agent an inbox, then sign it up for Cosmic

Give your agent an inbox, then sign it up for Cosmic

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7 min read
We nearly charged our own buyers twice for rows they'd already paid for

We nearly charged our own buyers twice for rows they'd already paid for

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4 min read
I optimized an API for AI agents instead of humans. Here's what one week of data looked like.

I optimized an API for AI agents instead of humans. Here's what one week of data looked like.

1
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4 min read
I Built an AI Upscaler with 6 Specialist Models — Here's What I Learned

I Built an AI Upscaler with 6 Specialist Models — Here's What I Learned

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2 min read
Authorization holds expire before you think they will

Authorization holds expire before you think they will

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1 min read
How to Test API Error States in React Without a Real Backend

How to Test API Error States in React Without a Real Backend

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5 min read
The HN search API said 34,795,481 comments in 30 days. The real number is 317,984. Here is the exact count, and what it killed.

The HN search API said 34,795,481 comments in 30 days. The real number is 317,984. Here is the exact count, and what it killed.

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6 min read
Building a GTA 6 JSON API for entities and current status

Building a GTA 6 JSON API for entities and current status

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1 min read
Transformei um problema real em uma API para consulta na lista de resĂ­duos sĂłlidos

Transformei um problema real em uma API para consulta na lista de resĂ­duos sĂłlidos

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1 min read
I Sent 50 Emails After 250 OK. 24% Still Bounced.

I Sent 50 Emails After 250 OK. 24% Still Bounced.

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12 min read
Airbnb has no public API - how to get listing and price data for any city (Python)

Airbnb has no public API - how to get listing and price data for any city (Python)

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4 min read
Test live messages with a WebSocket tester in 2026

Test live messages with a WebSocket tester in 2026

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7 min read
How to Query Remote Jobs, Public Tenders, and City Populations with a Single API

How to Query Remote Jobs, Public Tenders, and City Populations with a Single API

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1 min read
Your MCP Tool Schema Is Silently Rejecting Valid Calls

Your MCP Tool Schema Is Silently Rejecting Valid Calls

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4 min read
Build a Simple Polymarket Market Scanner With Python

Build a Simple Polymarket Market Scanner With Python

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6 min read
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