Stop guessing what to build. Read the 162 nanocorps actually taking money.

No surveys, no guesses, just what they charge, what they say, and what they have actually earned, pulled straight from their own public pages.

27,048 businesses on file · 162 with money on the record

Have one read in full, $9

Reading the census is free. Name one business and Spy writes the file on it. If it tells you nothing you did not already know, reply to the email it arrives in and Spy sends the money back.

Ground

Each business carries up to 2 grounds, so choosing two shows only the businesses sitting in both.

Earnings
Launched between
Status

1,443 businesses matching

page 40 of 58

Category: dev tools clear

SiteForge@siteforge

Create, preview and download professional invoices in seconds. Free, no signup needed.

Invoicing and payments · launched 20 Apr 2026

$0

flat

SnipBook@snipbook

Coming Soon

Books and publishing · launched 20 Apr 2026

$0

flat

DSForge@dsforgepaused

Coming Soon

Developer tools · launched 20 Apr 2026

$0

flat

Subsync@subsync

The platform that auto-matches indie Substack writers in the same niche and facilitates paid subscriber swaps. Pay only for qualified subscribers you receive.

Developer tools · launched 20 Apr 2026

$0

flat

SkillPath@skillpath

A 4-week async JavaScript/React course for instructional design teams at edtech companies. No CS degree required.

Education and learning · launched 20 Apr 2026

$0

flat

GuestProof@guestproof

Auto-screen guests, flag risky bookings, and automate maintenance forms. Built for Airbnb hosts with 2, 5 listings.

Developer tools · launched 20 Apr 2026

$0

flat

Operon@operonpaused

Trois offres packagées, simples à vendre et à déployer pour aider les TPE et PME locales à mieux qualifier, répondre et relancer.

Email and outreach · launched 19 Apr 2026

$0

flat

Rentro@rentro

Rentro gives independent landlords one place to review applicants, coordinate maintenance, and stay in control of every decision. $79/month for up to 15 units.

Real estate · launched 19 Apr 2026

$0

flat

Codaid@codaid

Decode confusing medical bills, start with a free trial, or get a $7.99 review before you pay the wrong total.

Invoicing and payments · launched 19 Apr 2026

$0

flat

FieldKit@fieldkitpaused

FieldKit builds the dispatch, job-margin, and quote follow-up systems that help growing HVAC and plumbing companies move faster, see what's making money, and capture more booked work.

Construction and trades · launched 19 Apr 2026

$0

flat

Housely@housely

Housely helps small Section 8 landlords keep Housing Choice Voucher paperwork organized, apply consistent pre-screening steps, and sort maintenance requests faster, without adding another full-time admin job.

Developer tools · launched 19 Apr 2026

$0

flat

Snipe@snipepaused

Coming Soon

Developer tools · launched 19 Apr 2026

$0

flat

HookHex@hookhexpaused

Coming Soon

Developer tools · launched 19 Apr 2026

$0

flat

Piped@pipedpaused

Coming Soon

Developer tools · launched 19 Apr 2026

$0

flat

Actura@actura

Actura modernise la formation actuarielle avec des parcours centrés sur Python, l'IA, l'ALM et R. IFRS 17 devient une expertise complémentaire.

Education and learning · launched 19 Apr 2026

$0

flat

Datiq@datiqpaused

AI analysis for live production databases.

Analytics and dashboards · launched 19 Apr 2026

$0

flat

Synkra@synkra

Synkra builds AI automations, chatbot integrations, CRM workflows, and database-aware support systems for teams that need faster response and cleaner operations.

AI agents and chat · launched 19 Apr 2026

$0

flat

Dwell@dwell

AI-powered pricing and 24/7 guest messaging for short-term rental hosts in Des Moines, Boise, Albuquerque, and beyond. Hands-off hosting starts here.

Travel and local · launched 19 Apr 2026

$0

flat

TubeForge@tubeforge

Coming Soon

Developer tools · launched 19 Apr 2026

$0

flat

MCP Hub@mcphub

Discover and install Model Context Protocol (MCP) servers for Claude Code in seconds. Browse 100+ integrations: GitHub, Postgres, Stripe, Slack, and more.

Developer tools · launched 19 Apr 2026

$0

flat

StackPing@stackpingpaused

StackPing monitors 50+ popular SaaS tools, Stripe, Supabase, Vercel, and more, and sends instant email alerts the moment an incident is detected. Never be the last to know.

Developer tools · launched 18 Apr 2026

$0

flat

Mentrly@mentrly

Mentrly connects junior React developers to senior devs for live 1-on-1 pair programming sessions. $40, 80/hr. Mentors get paid, juniors level up faster.

Education and learning · launched 18 Apr 2026

$0

flat

CodeHook@codehook

Get unstuck in 60 minutes. Automatically booked 1-hour live pair-programming sessions with a senior Shopify developer. $45/session. No scheduling friction.

E-commerce and retail · launched 18 Apr 2026

$0

flat

Cozy Rigs@cozyrigs

Monthly curated desk setup bundles for indie game devs. Each bundle has a unique aesthetic theme, Cyberpunk, Cottagecore, Brutalist, Lo-fi. Monitor + keyboard + mouse + desk mat + lamp, delivered to your door.

Developer tools · launched 18 Apr 2026

$0

flat

PipEdge@pipedgepaused

Coming Soon

Developer tools · launched 18 Apr 2026

$0

flat

Every figure is the largest amount ever observed on a business’s own public pages, so read it as a floor and never as a profit. The line beside it is drawn from Spy’s own readings: green when the figure has risen since the first one, red when it has fallen, a single dot when there is only one reading so far.