Datasets by OAI-PMH

NLP datasets are available by OAI-PMH (Open Archives Initiative - Protocol for Metadata Harvesting) in Dublin Core, MarcXchange, Mods, EDM and ESE. For several international portals, data contributed by the NLP is harvested with this service.

OAI-PMH access:
https://oai.bnportugal.gov.pt

A collection of datasets released by the NLB:

PORTUGUESE NATIONAL BIBLIOGRAPHY
Bibliographic records of monographs and serials published in Portugal, available as XML files in Dublin Core, MarcXchange or Mods

Part 1 (1935-2001) - 369.396 (aug. 2025)

OAI base URL: https://oai.bnportugal.gov.pt/servlet/OAIHandler
set: bibliografianacional2001
metadata prefix: oai_dc | marcxchange | mods | edm | ese

Part 2 (since 2002) – 311.224 (aug. 2025) | Updated daily

OAI base URL: https://oai.bnportugal.gov.pt/servlet/OAIHandler
set: bibliografianacional
metadata prefix: oai_dc | marcxchange | mods | edm | ese

NLP CATALOGUE
Full set of bibliographic records from the NLP online catalogue

1.398.049 (aug. 2025) | Updated daily

OAI BaseURL: https://oai.bnportugal.gov.pt/servlet/OAIHandler
Set: catalogo
metadataPrefix: oai_dc | marcxchange | mods | edm | ese

Collection: manuscripts
Set of bibliographic records relating to manuscript collections of the Rare Book and Manuscript Department of the NLP

34.718 (aug. 2025) | Updated daily

OAI baseUrl: https://oai.bnportugal.gov.pt/servlet/OAIHandler
set: manuscritos
metadataPrefix: oai_dc | marcxchange | mods | edm | ese

PORBASE CATALOGUE

Full dataset
Full set of bibliographic records from the PORBASE online catalogue

2.345.451 (aug. 2025) | Updated daily

OAI Base URL: https://oai.bnportugal.gov.pt/servlet/OAIHandler
set: porbase
metadataPrefix: oai_dc | marcxchange | mods | edm | ese

NATIONAL DIGITAL LIBRARY

Full dataset
Full set of bibliographic records relating to NLP digitized collections

44.218 (aug. 2025) | Updated daily

OAI BaseURL: https://oai.bnportugal.gov.pt/servlet/OAIHandler
Set: bnd
metadataPrefix: oai_dc | marcxchange | mods | edm | ese

Collection of public domain works
Set of bibliographic records relating to digitized public domain works.

30.486 (aug. 2025) | Updated daily

OAI BaseURL: https://oai.bnportugal.gov.pt/servlet/OAIHandler
Set: bndlivre_digitalizadas
metadataPrefix: oai_dc | marcxchange | mods | edm | ese

Collection of public domain and open access works
Set of bibliographic records relating to digitized public domain works or born digital items with open access

30.632 (aug. 2025) | Updated daily

OAI BaseURL: https://oai.bnportugal.gov.pt/servlet/OAIHandler
Set: bndlivre
metadataPrefix: oai_dc | marcxchange | mods | edm | ese

Collection on the I World War
Set of bibliographic records relating to digitized works concerning the Portuguese participation in the I World War, including books, newspapers, iconography, maps, music and personal papers.

765 (dec. 2018)

OAI baseUrl: https://oai.bnportugal.gov.pt/servlet/OAIHandler
set: iguerramundial
metadataPrefix: oai_dc | marcxchange | mods | edm | ese

Collection of digitized newspapers
Set of bibliographic records relating to public domain digitized newspapers

136 (aug. 2025)

OAI baseUrl: https://oai.bnportugal.gov.pt/servlet/OAIHandler
set: jornais
metadataPrefix: oai_dc | marcxchange | mods

RNOD – Registo Nacional de Objetos Digitais
Set of records from RNOD - Registo Nacional de Objetos Digitais (National Registry of Digital Objetcts)

170.756 (aug. 2024) | Updated daily

OAI BaseURL: https://oai.bnportugal.gov.pt/servlet/OAIHandler
Set: rnod
metadataPrefix: oai_dc | marcxchange | mods| edm | ese

RNOFA – National Repository of Objects in Alternative Formats
Full set of bibliographic records from the National Repository of Objects in Alternative Formats

17.338 (aug. 2025) | Updated monthly

OAI BaseURL: https://oai.bnportugal.gov.pt/servlet/OAIHandler
Set: rnofa
metadataPrefix: oai_dc | marcxchange | mods| edm | ese

EODOPEN - Opening Publications for European Netizens
Metadata of digitized documentation, published in the 20th and 21st centuries, within the scope of project EODOPEN – Opening Publications for European Netizens

1064 (aug. 2025) | Updated daily

OAI BaseURL: https://oai.bnportugal.gov.pt/servlet/OAIHandler
Set: eodopen
metadataPrefix: oai_dc | marcxchange

Other sets of records available at https://oai.bnportugal.gov.pt/listSets.html