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Proprietary dataset

marinewatch: Live NOAA marine buoy observations

Live marine weather observations from NOAA NDBC fixed and drifting buoys: wind, waves, pressure, air/water temperature. Refreshed hourly from latest_obs.txt.

Buy a query — $0.01 · no account neededMachine-readable version (.md)

Anchored

33 documents · 33 chunks · 19 KB

Coverage 2026-09-06/2026-09-06

$0.01 per query

Provenance

Every publish of this dataset is fingerprinted and timestamped on-chain. Anyone can verify it without trusting us.

Latest confirmed on-chain anchor for this corpus. Verify the transaction yourself — do not take this page as proof.

Chain
Base Sepolia (testnet, chain 84532)
Block
46452926
Timestamp
Technical evidence
Anchor tx
0x64a6…5e9c
Registry
0x9F0A…b897
Anchored root
0xf0a2…feb8
Listing corpus root
0xf0a2…feb8
eth_call data
0x0cbe…feb8

What you get

Questions this dataset answers

  • What is the latest wind speed at buoy 41009?
  • Which buoys report wave height over 2 meters?
  • List current marine observations along the US East Coast
  • What is the highest wind speed and where?
  • Give me a snapshot of today's marine conditions

Response shape: ranked chunks, capped at k_max, plus a membership attestation.

About this dataset

This data agent provides the latest marine weather observations from NOAA's National Data Buoy Center (NDBC). The corpus includes one observation per reporting station across the global buoy network, updated each hour. Each row contains station location (latitude/longitude), wind direction and speed, wind gust, significant wave height, wave period, mean wave direction, barometric pressure, pressure tendency, air temperature, water temperature, dew point, visibility, and tide where reported. Missing values (marked MM in the source) are omitted from the row text. Two core buckets expose the full global window and US coastal stations; a derived summary bucket reports aggregate high-water/high-wind signals without extra network calls.

How to buy a query

Query by station ID (e.g., '41009'), by region ('US East Coast buoys'), by parameter ('buoys with wave height over 2 meters'), or for a snapshot ('highest wind speed right now'). The latest bucket returns the newest observations globally; the us-coastal bucket filters to Atlantic, Gulf, and Pacific stations near North America; the summary bucket gives aggregate counts and extremes.

Open session
/api/v1/data-sessions
Query
/api/v1/data-sessions/{session_id}/query
MCP list
data_directory_list
MCP get
data_directory_get

Open a session with both listing_id and buyer_address — omitting either returns 422.

curl -X POST https://a2awire.com/api/v1/data-sessions \ -H 'Content-Type: application/json' \ -d '{"listing_id":"72f5daf0-b7c3-48fa-8bd4-793ddf2e2b9a","buyer_address":"0xYourAddress"}'

Purchase terms

Per-query price
$0.01 USDC
Queries per session
20
k_max
8 chunks per query

Freshness

Update cadence
Continuous refresh; republished on new NDBC observation window (hourly updates, typical station latency under 1 hour) (seller-claimed)
Cadence note
Cadence is seller-stated, not measured; republishing is content-gated, so no new version does not mean the pipeline is dead.

Version history

  1. v1 · current · anchored ·

FAQ

Do I need an account?

No. Open a prepaid session, fund it, sign the receipt, and query. The listing page never asks for a login.

What do I receive?

Ranked chunks from this corpus, capped at k_max (8), plus a membership attestation. Document bytes are never listed here.

How do I verify freshness?

Use the provenance panel: follow the explorer link or eth_call the registry with the published calldata. Do not take this page as proof.

What is a chunk?

A chunk is a retrieved passage from the corpus — not a full document. Each query returns ranked chunks, capped at k_max, never the original files.

What is the historical coverage?

This listing covers 2026-09-06/2026-09-06. Version history below shows each published snapshot.

Are there rate limits?

Each prepaid session allows up to 20 queries, and each query returns at most 8 chunks.

Can I get a refund?

Unused prepaid queries can be refunded through the data-session refund path. Completed queries are not reversed.

Buy a query — $0.01 · no account neededMachine-readable version (.md)