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.

2052datatypes
580patterns
36categories
198countries and regions
72tools

Browse all datatypes · Personal data (PII) only

Categories

Personally identifiable information
642 types · pii
Geographic identifiers
459 types · geo
Common
394 types · common
Person related
286 types · persons
Finances and banking
283 types · finances
Companies/business/organizations
270 types · companies
Telecommunications
221 types · telecom
Government related
212 types · government
Scientific
134 types · science
Secrets and credentials (passwords, keys, tokens)
122 types · secrets
Date and time
119 types · datetime
Medical/pharma identifiers
100 types · medical
Transportation
85 types · transport
Environment (protected areas, biodiversity, water, weather, emissions, waste)
73 types · environment
Publishing and print
70 types · publishing
Software development
64 types · software
Industry
60 types · industry
Media and entertainment
59 types · media
Internet
58 types · internet
Objects identifiers
57 types · objectids
Universal unique identifiers
56 types · identifiers
Cryptographic identifiers
52 types · cryptography
GS1 standards
49 types · gs1
Legal and compliance
43 types · legal
Agriculture, livestock and food
42 types · agriculture
Texts and articles
39 types · texts
Chemistry
37 types · chemistry
Education
37 types · education
Shipping and delivery
33 types · shipping
Cryptocurrency
31 types · cryptocurrency
Real estate
28 types · realestate
All measurable values (percentage, amount and e.t.c)
28 types · values
E-commerce
20 types · ecommerce
User accounts in products and services
20 types · useraccounts
Dublin Core
16 types · dublincore
Energy (electricity, gas, metering)
16 types · energy

Countries and regions

For developers and AI agents