Metacrafter Registry

Metacrafter Registry

An open registry of semantic data types: identifiers, personal data, codes and classifiers. Each type has a description, a regular expression, examples and links to Wikidata, Schema.org and standards. Metacrafter and other tools use these types to label data.

1584datatypes
313patterns
36categories
166countries and regions
51tools

Browse all datatypes · Personal data (PII) only

Categories

Personally identifiable information
428 types · pii Geographic identifiers
379 types · geo Person related
276 types · persons Companies/business/organizations
239 types · companies Finances and banking
235 types · finances Common
187 types · common Government related
137 types · government Medical/pharma identifiers
85 types · medical Scientific
84 types · science Date and time
82 types · datetime Secrets and credentials (passwords, keys, tokens)
71 types · secrets Objects identifiers
56 types · objectids Media and entertainment
55 types · media GS1 standards
49 types · gs1 Transportation
46 types · transport Industry
45 types · industry Internet
43 types · internet Cryptographic identifiers
42 types · cryptography Universal unique identifiers
36 types · identifiers Software development
35 types · software Cryptocurrency
30 types · cryptocurrency Chemistry
26 types · chemistry Telecommunications
25 types · telecom Legal and compliance
24 types · legal Real estate
23 types · realestate Shipping and delivery
22 types · shipping Publishing and print
21 types · publishing E-commerce
19 types · ecommerce Education
19 types · education User accounts in products and services
19 types · useraccounts All measurable values (percentage, amount and e.t.c)
18 types · values Dublin Core
16 types · dublincore Environment
12 types · environment Texts and articles
7 types · texts Energy (electricity, gas, metering)
6 types · energy Agriculture, livestock and food
3 types · agriculture

Countries and regions

For developers and AI agents