For companies, researchers and AI agents

Data Market

Buy indoor and outdoor air-quality and weather data collected by the Wellbian network. Every response is area-and-hour statistics; individual devices can never be identified.

Observation devices: -
Granularity: Neighbourhood · hourly/daily
Price: 0.005 RLUSD per area-day
Privacy: Area and hour statistics only

Buy data API guide Bulk & custom inquiry

Products

AGGREGATESAvailable

Aggregated data

Grid (geohash5) × hourly weather aggregates (avg/max/variance). For smart-home control, dashboards, research

Mean PM2.5 · PM10 · CO₂ · TVOC · temperature · humidity

0.005 RLUSDper area-dayBuy

COHORTComing soon

Cohort queries

Filtered cohort statistics (k≥25 anonymity). For appliance R&D and targeted marketing

Statistics grouped by area, period and device type

0.05 RLUSDper queryAsk to be notified →

INSIGHTComing soon

LLM insights

Data-grounded analysis for natural-language questions Supports agent M2M payments via x402

A data-backed report for your question

0.5 RLUSDper reportAsk to be notified →

Buy data

Pick an area, a period and indoor/outdoor - you pay only for what has data. One unit = one neighbourhood × one day × one category.

1 Area

2 Period

2026-10-08 ~ 2026-10-14 · Dates are local dates (Korea = KST)

3 Category

4 Resolution

Quote

ScopeSouth Korea

Pay with

Total-

Connect a wallet to pay

API key (prepaid)

Top up to get an API key; each data request deducts its quoted price from the balance. Servers and AI agents can pull data by area, period and indoor/outdoor directly.

Top-up amount Minimum 1 RLUSD

RLUSD

Add to existing key (optional)

Pay with

Amount due1 RLUSD

API key balance & purchases

Enter your key to see the remaining balance, recent purchases and re-download deadlines. The key is only sent to our server, never stored in the browser.

Developer integration

One HTTP request is all it takes. Without payment, a 402 response returns the payment terms.

country · admin1~3 · region: Country (required, e.g. KR) · state · city/district · neighbourhood names, or a neighbourhood id (region) from /api/data/v2/regions
taxon: IAQ (indoor) · OAQ (outdoor) · ALL
from · to · days: from·to local dates (YYYY-MM-DD) or days=N · hourly up to 31 days, daily up to 366
granularity · format: hour · day, format=json · csv
/api/data/v2: Machine-readable guide for AI agents (endpoints, pricing, payment)

# 0) regions & quote (free)
curl "https://wellbian.io/api/data/v2/regions?country=KR"
curl "https://wellbian.io/api/data/v2/quote?country=KR&admin1=%EC%84%9C%EC%9A%B8%ED%8A%B9%EB%B3%84%EC%8B%9C&admin2=%EA%B0%95%EB%82%A8%EA%B5%AC&taxon=IAQ&days=7&granularity=hour"

# 1) no payment -> HTTP 402 with payment terms (amount = quote)
curl "https://wellbian.io/api/data/v2/query?country=KR&admin1=%EC%84%9C%EC%9A%B8%ED%8A%B9%EB%B3%84%EC%8B%9C&admin2=%EA%B0%95%EB%82%A8%EA%B5%AC&taxon=IAQ&days=7&granularity=hour"

# 2) pay that amount in RLUSD on XRPL, retry with the tx hash
curl -H "X-Payment-Tx: <tx_hash>" \
  "https://wellbian.io/api/data/v2/query?country=KR&admin1=%EC%84%9C%EC%9A%B8%ED%8A%B9%EB%B3%84%EC%8B%9C&admin2=%EA%B0%95%EB%82%A8%EA%B5%AC&taxon=IAQ&days=7&granularity=hour&format=csv"

# prepaid key: the quoted price is deducted per request
curl -H "X-Api-Key: kwd_..." \
  "https://wellbian.io/api/data/v2/query?country=KR&admin1=%EC%84%9C%EC%9A%B8%ED%8A%B9%EB%B3%84%EC%8B%9C&admin2=%EA%B0%95%EB%82%A8%EA%B5%AC&taxon=IAQ&days=7&granularity=hour&format=json"

# balance & recent purchases
curl -H "X-Api-Key: kwd_..." "https://wellbian.io/api/data/v2/key"

Privacy by design

Every dataset sold or queried passes five stages. Responses never contain device lists or individual readings.

1Spatial generalizationLocations grouped by neighbourhood
2Time aggregationOnly hourly or daily averages remain
3Identifier rotationDevice and wallet IDs are removed
4k-anonymityIndoor hours with fewer than 5 devices in an area are dropped (outdoor stations are public)
5Attribute generalizationIndoor device counts rounded to 5

Data Bounty

We spend ~90% of our lives indoors. Indoor air measurement is where prevention of respiratory and cardiovascular disease begins - the data stations accumulate daily is public-health infrastructure that turns unmeasured spaces into manageable ones. Data bounties let companies and institutions that need this data request it directly, with funds committed up front.

ESCROW

Upfront escrow

Sponsors deposit XRP or RLUSD first. Only bounties with an on-chain-verified deposit go live - no payment-default risk.

Exclusive data rights

Unlike the open API anyone can buy, only sponsors who deposited and joined the bounty receive a one-time exclusive access key - the sole way to access participating stations' data for the test period. Participants earn bounty rewards on top of regular epoch rewards.

PROMO

Clean-air solution promos

Participants who opt in may receive the sponsor's weather solution promotions. Consent is per-bounty and revocable anytime.

No bounties are live yet - we're recruiting the first sponsors.

SampleThe Downtown Seoul and Office bounties are samples made for illustration. They are not live bounties and cannot be joined or settled.

KweatherSampleACTIVE

Downtown Seoul fine-dust survey

Collects hourly indoor PM2.5 across Seoul's 25 districts for all of September. Keep at least one device running normally and rewards settle automatically.

Reward pool: 12,000 RLUSD
Period: 2026-09-01 - 2026-09-30
Participants: 128

Wellbian LabsSampleUPCOMING

Office CO₂ & ventilation data

Collects CO₂ levels and ventilation cycles in workspaces. For indoor station (IAQ) holders.

Reward pool: 250,000 WLBN
Period: 2026-09-15 - 2026-10-15
Participants: 0

Bulk & custom data inquiries: admin@wellbianlabs.io · Sponsor