A

Public Data API Healthcheck SaaS

4.50

Derivation Chain

Step 1 Public Data Portal resumes operations / enterprise adoption expands
→
Step 2 Stability of services dependent on public data APIs
→
Step 3 API status monitoring + schema change detection + outage alerts

Problem

Startups and SMEs using public data APIs experience service disruptions when APIs go down without notice or response schemas change unexpectedly. As seen in the 2025 major outage of the Public Data Portal, recovery timelines remain unclear, with an average of 2-4 hours to detect outages and an additional half-day for workaround implementation.

Solution

Performs health checks on registered public data APIs every 5 minutes, monitoring response time, status codes, and schema consistency. Sends instant alerts via Slack/KakaoTalk/email upon outage detection and provides cached recent valid responses as fallback to minimize service downtime.

Target: Data-driven startups and IT service companies (5-30 employees) using 2 or more public data APIs
Revenue Model: SaaS Monthly Subscription: Starter (5 APIs) at 29,000 KRW (~$22)/month, Pro (20 APIs + fallback cache) at 59,000 KRW (~$44)/month, Enterprise (unlimited + SLA reports) at 149,000 KRW (~$112)/month
Ecosystem Role: Infrastructure
MVP Estimate: 2_weeks

NUMR-V Scores

N Novelty
4.0/5
U Urgency
5.0/5
M Market
4.0/5
R Realizability
5.0/5
V Validation
4.0/5
NUMR-V Scoring System
N Novelty1-5How uncommon the service is in market context.
U Urgency1-5How urgently users need this problem solved now.
M Market1-5Market size and growth potential from proxy indicators.
R Realizability1-5Buildability for a small team with realistic constraints.
V Validation1-5Validation signal quality from competition and demand data.
Each dimension is scored 1-5 and weighted into grade S/A/B/C/D.
SaaS N=.15 U=.20 M=.15 R=.30 V=.20 Senior N=.25 U=.25 M=.05 R=.30 V=.15

Feasibility (73%)

Tech Complexity
34.7/40
Data Availability
18.8/25
MVP Timeline
20.0/20
API Bonus
0.0/15
Feasibility Breakdown
Tech Complexity/ 40Difficulty of core implementation stack.
Data Availability/ 25Practical availability and cost of required data.
MVP Timeline/ 20Expected time to ship a usable MVP.
API Bonus/ 15Bonus for viable public API leverage.
Total 100 points; below 50% is filtered out.

Market Validation (59/100)

Competition
8.0/20
Market Demand
9.4/20
Timing
14.0/20
Revenue Signals
10.5/15
Pick-Axe Fit
10.5/15
Solo Buildability
7.0/10
Validation Breakdown
Competition/ 20Signal quality from competitor landscape.
Market Demand/ 20Demand proxies from search and mention patterns.
Timing/ 20Fit with current shifts in tech, behavior, and regulation.
Revenue Signals/ 15Reference evidence for monetization viability.
Pick-Axe Fit/ 15How well the concept serves participants in a trend.
Solo Buildability/ 10Practicality for lean-team implementation.
Total 100 points; below 50 is filtered out.

Technical Requirements

Backend [medium] Infrastructure [low] Frontend [low]
Dashboard