REAL PRODUCTS. PUBLIC SOURCES.

Explore revenue-backed businesses.

Public income figures, clear source context, and business case studies for independent founders.

Real projects86
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Revenue disclosures86
Original metric & reporting context
Open-source projects5
Public code, different business models
Repository signals3
GitHub snapshots, not growth claims

15 projects matching “API”

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#ProjectCategory / modelReported revenueEvidenceGitHub ⓘSave and compare
01
Bannerbear

Template-driven image and video API

Researched profile
MarketingSubscription ≈ $50,000MRR · USDHistorical milestone: July 2023 Company disclosureChecked Oct 18, 2026 —
02
Browserless

Managed browser infrastructure for automation, data extraction and browser-based applications.

Researched profile
Developer toolsUsage-based cloud subscriptions + enterprise licensing ≈ $3,500,000ARR · Unspecified $Approximate ARR stated during the interview published March 5, 2026; recording and measurement dates unspecified Founder disclosure in interviewChecked Oct 19, 2026 —
03
EmailEngine

A self-hosted gateway that exposes mailbox access through a common REST API.

Researched profile
Developer toolsSelf-hosted software subscription + enterprise license ≈ $13,000MRR · Unspecified $Current MRR stated in the interview published January 24, 2026; measurement date unspecified Founder disclosure in interviewChecked Oct 19, 2026 —
04
NinjaPear

B2B research data for enrichment and prospecting workflows.

Researched profile
Developer toolsCredit-based API access through subscriptions and pay-as-you-go purchases > $15,000Monthly revenue · Unspecified $Gross revenue for 'last month' in the July 7, 2026 interview; the financial month and cutoff are not explicitly dated Founder disclosure in interviewChecked Oct 20, 2026 —
05
Pirsch Analytics

Privacy-oriented web analytics with a hosted dashboard, APIs and agency options.

Researched profile
AnalyticsSubscription ≈ $14,300MRR · Unspecified $2025 year-end recap snapshot Founder disclosureChecked Oct 19, 2026 —
06
Postiz

A social publishing service with hosted subscriptions and interfaces for automated workflows.

Researched profile
Marketing toolsSubscription SaaS ≈ $2,200,000ARR · Unspecified $Annual recurring revenue disclosed on September 7, 2026 Founder disclosureChecked Oct 19, 2026 —
07
PostPeer

A unified API for connecting social accounts, scheduling content and checking publication results.

Researched profile
Developer toolsUsage-based subscriptions + one-time credit packs ≈ $2,400MRR · Unspecified $Subscription MRR reported in a July 28, 2026 interview; measurement day unspecified Founder disclosure in interviewChecked Oct 19, 2026 —
08
Puff Zero

Record vaping counts, personal check-ins and self-selected goals in a mobile diary.

Researched profile
Health & FitnessFreemium app + weekly, monthly or annual subscriptions $13MRR · Unspecified $Product MRR snapshot extracted from the founder's RevenueCat account on July 19, 2026. The article separately specifies June 21–July 19 for trailing activity and collected portfolio receipts. Founder disclosureChecked Oct 20, 2026 —
09
Ring Tonic

Call attribution and reporting software connected to the customer's own phone-service account.

Researched profile
Marketing toolsSubscription SaaS + separately billed external services ≈ $5,400MRR · Unspecified $Current Ring Tonic run rate described in the February 24, 2026 founder interview; exact financial cutoff unstated. Founder disclosureChecked Oct 19, 2026 —
10
ScrapingBee

A web-data API that manages rendering and proxy infrastructure.

Researched profile
Developer toolsAPI subscription $1,000,000ARR · Unspecified $Historical ARR milestone reached November 2021 Founder disclosureChecked Oct 19, 2026 —
11
ScreenshotOne

A screenshot API that handles browser rendering and capture options.

Researched profile
Developer toolsAPI subscription + usage $200,000ARR · Unspecified $Historical ARR milestone reported April 2025 Founder disclosureChecked Oct 19, 2026 —
12
SEO Utils

Desktop SEO software combining keyword, ranking and reporting workflows with customer-supplied data services.

Researched profile
Marketing toolsDesktop software licenses + optional add-ons ≈ $10,400Monthly revenue · Unspecified $Approximate current monthly revenue stated in the February 2026 founder interview Founder disclosureChecked Oct 19, 2026 —
13
Sleek

AI-assisted mobile screen design with editable output for Figma and application development.

Researched profile
DesignCredit-based monthly and annual subscriptions ≈ $10,000MRR · Unspecified $MRR disclosed in the January 13, 2026 interview; exact observation date unspecified Founder disclosure in interviewChecked Oct 19, 2026 —
14
SocialKit

An API that turns supported social media URLs into structured content and metrics.

Researched profile
Developer toolsUsage-based subscriptions + one-time credit packs ≈ $2,800MRR · Unspecified $Subscription MRR reported in a July 28, 2026 interview; measurement day unspecified Founder disclosure in interviewChecked Oct 19, 2026 —
15
Zernio

A unified API for connecting accounts and adding social publishing, messaging and related marketing functions.

Researched profile
Developer toolsUsage-based connected-account billing + metered services > $1,000,000ARR · Unspecified $Founder said the product crossed 1M ARR about a month before the interview published April 30, 2026; exact milestone date unspecified Founder disclosure in interviewChecked Oct 19, 2026 —

Figures are source disclosures, not audited by MRRTrace. Revenue is not profit. Revenue sorting uses the selected metric and currency (default: USD MRR); other metrics follow alphabetically. GitHub stars measure repository interest, not business success.