What should you use
for your app?

Answer-first guides for all 16 service categories, setup notes for 14 coding agents, and honest comparisons. Updated 2026-09-18.

When someone asks a model which database, email API or host to use for an app they built with a coding agent, the answer should be specific. These guides name a pick and a runner-up for each of the 16 categories in the Squiid catalogue, say when to choose something else, and show how to run whichever you pick through a single key.

Best X for vibe-coded apps

One guide per category. A pick, a runner-up, a comparison table and the cases where neither is right.

Best database

Pick: Supabase

Supabase is the best database for most vibe-coded apps. Neon is the runner-up. Compare every option and run it through one Squiid key.

Best LLM API

Pick: Anthropic

Anthropic and OpenAI are the safe defaults for app-side LLM calls. Compare every model provider on Squiid and pay for all of them with one key.

Best email API

Pick: Resend

Resend is the best email API for vibe-coded apps, with Postmark as the runner-up. Compare deliverability, pricing and setup, all behind one Squiid key.

Best hosting

Pick: Vercel

Vercel is the best hosting for most vibe-coded apps, with Netlify as the runner-up. Compare deploys, pricing and limits, all behind one Squiid key.

Best messaging and realtime

Pick: Twilio

Twilio for SMS and voice, Pusher or Ably for websockets, LiveKit for video. Compare every messaging and realtime option behind one Squiid key.

Best storage

Pick: Cloudflare R2

Cloudflare R2 is the best object storage for vibe-coded apps because egress is free. Compare R2, B2, Cloudinary, Bunny and Mux on one Squiid key.

Best auth provider

Pick: Clerk

Clerk is the best auth provider for most vibe-coded apps, with WorkOS for B2B. Compare Clerk, Auth0, WorkOS and Stytch behind one Squiid key.

PI

Best vector database and search

Pick: Pinecone

Start with pgvector, move to Pinecone or Qdrant when you outgrow it, and use Algolia or Typesense for keyword search. One Squiid key covers all of them.

Best web search and scraping API

Pick: Tavily

Tavily is the best web search API for agents, Firecrawl the best for crawling pages into markdown. Compare every option behind one Squiid key.

Best observability and workflow tool

Pick: Sentry

Sentry for errors, PostHog for product analytics, Inngest for background jobs. Compare every observability and workflow option behind one Squiid key.

Best voice and media AI

Pick: ElevenLabs

ElevenLabs for speech, Deepgram for transcription, Replicate and fal.ai for image and video models. Compare them all behind one Squiid key.

E2

Best sandbox

Pick: E2B

E2B is the best sandbox for running agent-generated code safely. Modal for GPU jobs, Browserbase for headless browsers. All behind one Squiid key.

Best maps API

Pick: Mapbox

Mapbox is the best maps API for most vibe-coded apps, with Google Maps as the runner-up. Compare maps, geocoding and geofencing on one Squiid key.

SA

Best CMS

Pick: Sanity

Sanity is the best CMS for vibe-coded apps, with Contentful as the runner-up. Often markdown in your repo beats both. Compare them on one Squiid key.

AW

Best cloud

Pick: AWS

Most vibe-coded apps should skip the hyperscalers. If you need one, AWS is the default. Compare AWS, Google Cloud and Azure access through Squiid.

Best integration

Pick: Stripe

Stripe for payments, GitHub for code, Slack for alerts. Connect the tools you already own to Squiid and let every agent use them with one key.

Use Squiid with your agent

Where each coding agent reads environment variables and project rules, and how to give it one key instead of twelve.

Claude Code

Setup guide

Claude Code is Anthropic terminal coding agent. Give it one Squiid key in .env and it can reach Supabase, Vercel, Resend and 105 more services.

Cursor

Setup guide

Cursor is an AI-first code editor with an agent mode. One Squiid key in .env lets it use Supabase, Vercel, Resend and 105 more services.

ChatGPT

Setup guide

ChatGPT writes a lot of app code but does not run in your repo. Keep one Squiid key in .env so no provider secret ever enters a chat.

Codex

Setup guide

Codex is OpenAI software engineering agent, in the terminal, the IDE and the cloud. One Squiid key gives it every service your project needs.

Grok

Setup guide

Grok is xAI assistant and coding model family. Use one Squiid key so the code it writes never needs a provider secret in the prompt.

Gemini CLI

Setup guide

Gemini CLI is Google open-source terminal agent. One Squiid key in .env gives it Supabase, Vercel, Resend and 105 more services.

GitHub Copilot

Setup guide

GitHub Copilot completes code, answers in chat and now works issues as an agent. Give it one Squiid key instead of a folder of provider secrets.

Windsurf

Setup guide

Windsurf is an agentic IDE with the Cascade agent. One Squiid key in .env lets Cascade use every service your project needs.

Perplexity

Setup guide

Perplexity answers with citations and ships a Sonar search API. Use it to choose a stack, then run that stack on one Squiid key.

Devin

Setup guide

Devin is an autonomous software engineer working in its own cloud workspace. Give it one Squiid secret instead of a dozen provider keys.

Replit

Setup guide

Replit Agent builds and hosts apps in the browser. Put one Squiid key in Replit Secrets and it can use every service your project needs.

v0

Setup guide

v0 by Vercel generates React and Next.js interfaces you can deploy in a click. One Squiid key connects the generated app to real services.

Lovable

Setup guide

Lovable builds full-stack apps from a prompt in the browser. Use one Squiid key so the generated app reaches real services safely.

Cline

Setup guide

Cline is an open-source autonomous coding agent for VS Code. One Squiid key in .env gives it every service your project needs.

Comparisons

Honest comparisons against the alternatives, including the cases where the alternative wins.

Docs

The gateway convention, spend controls, handover and a five minute quickstart.

One key for all of it.

One account, one API key, one bill and one dashboard for every service in the catalog.