Exact enough to matter.
A single municipal record or a national pattern. Retrieve the fields, places, and periods your question actually needs.
GRANULARITY ↓ TO THE RECORD PUBLIC KNOWLEDGE. MACHINE ACCESSIBLE.UNITED STATES / 01
Query Datum.
A living model of places,
connected through data.
Research and development · Interactive concept preview.
Designed for agents, with proposed x402 payments.
+ THE GEOGRAPHIC SUBSTRATE38° N 97° W
+
DALLAS COUNTY, TX
48113 · A POINT OF CONNECTION
48113 · A POINT OF CONNECTION
PEOPLE / PLACES / ACTIVITY / RELATIONSHIPS ONE CONNECTED MODEL
PRECISE BY NATURE. CONNECTED BY DESIGN.SCROLL TO INVESTIGATE ↓
01 / THE MODEL
A thousand sources.
A shared reality.
A permit. A parcel. A business. A neighborhood.
Separate records describe the same world. Datum gives them a common reference.
Connected enough to explain.
Follow a permit to a parcel, a business to its licenses, a place to its people. The joins are where the knowledge begins.
RELATIONSHIPS → CONTEXTEvidence all the way down.
Keep the source, the definition, and the time. Understand what a value means—and how we came to know it.
PROVENANCE ↗ TO THE SOURCE02 / ANATOMY OF A QUERY
What do you
want to know?
Choose a question. Follow the joins.
See the shape of a precise answer.
RESPONSE PREVIEW
ILLUSTRATIVE DATA WEIGHT
QUOTED PRICE
03 / INTERNET-NATIVE ACCESS
HTTP / 402
Intelligence moves.
Payments should too.
An agent needs a fact. It requests the data, authorizes the price, and receives the answer.
Datum is being built around x402: precise data access with payment built into the request.
01
ASK FOR WHAT YOU NEED
GET /v1/entities/48113/metrics
?fields=population,income02
RECEIVE THE PAYMENT REQUIREMENTS
402 Payment Required
PAYMENT-REQUIRED: <requirements>03
AUTHORIZE PAYMENT & RETRY
PAYMENT-SIGNATURE: <payload>04
RECEIVE THE DATA
200 OK
Structured. Sourced. Ready to use.THE ECONOMICS OF PRECISION
Buy the answer.
By the weight.
Our proposed model prices the canonical size of the data you select. Fewer fields. A smaller geography. A precise period. Know the price before you authorize the request.DISCOVERY: FREE / DATA: METERED
AN EXPANDING RECORD OF REALITY
Every new source.
More possible questions.
Building a computable United States.
One record, one relationship, one query at a time.