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Cardzen
Track every credit, perk, and point before it expires
26 followers
Track every credit, perk, and point before it expires
26 followers
The average premium cardholder leaves up to $1,500 in credits and points on the table every year. Cardzen tracks every credit, perk, and multiplier across your cards, reminds you before anything expires, and tells you which card to use for every purchase. Ask the AI advisor anything about your wallet, get a daily digest of what needs attention, and stop paying annual fees for benefits you never use.
Products used by Cardzen
Explore the tech stack and tools that power Cardzen. See what products Cardzen uses for development, design, marketing, analytics, and more.
Engineering & Development 2
Engineering & Development 2

Codex 3.0 by OpenAICodex can now build, test & debug on autopilot
5.0 (59 reviews)
Also considered:
honest answer is I use both codex and claude code, but codex became my command center. it runs my processes and literally directs my other agents, including claude. my setup is basically one agent implements, one agent audits, and codex is the one orchestrating all of it, handing out the runbook and reviewing what comes back. turns out it's really good at managing other agents, not just coding. it also just stays on task way longer than anything else I tried.

Google Cloud PlatformA suite of cloud computing services by Google
5.0 (196 reviews)
for me gcp basically means firebase, which is funny because firebase is listed here as an alternative to itself. auth, firestore, and push notifications all in one sdk, plus cloud scheduler running the hourly jobs that remind people before their credits expire. as a solo dev that bundle is really hard to beat. free tier is generous and I never think about servers. my api is just node and express so none of it is locked in if I ever want to move. azure and the smaller hosts each do a piece of this but I didn't want to duct tape four services together.
LLMs 1
LLMs 1

LangchainLangChain’s suite of products supports AI development
4.9 (113 reviews)
what I actually use is LangGraph. cardzen's chat is a few agents behind a semantic router (advisor, actions, general chat) and langgraph let me build that as an actual graph with real state instead of a pile of prompts pretending to be architecture. streaming worked out of the box and gating tools by subscription tier was easy. the thing that really sold me though was langsmith. being able to run eval datasets and actually measure whether my router picks the right agent, instead of vibes testing it, changed how I ship.
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Claude Code