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fastCRW Pergamon
Research · US

DOI.org

doi.org

Resolve any DOI to its registration record and target URLs.

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1Request

1 credit⌘ ↵
Code follows the fields above
curl "https://api.fastcrw.com/v1/data/doi/monthly-counts" \
  -H "Authorization: Bearer $FASTCRW_API_KEY"

2Response example

A sample shape. Press Run to see live data from DOI.org.

indextypedatattltimestamp
6DOI_COUNTS{"format":"string","value":"{\n \"2003-08\": {\n \"doiCount\": 10048024,\n \"prefixCount\": 602\n },\n \"2003-09\": {\n \"doiCount\": 10401925,\n \"prefixCount\": 614\n },\n \"2003-11\": {\n \"doiCount\": 11096136,\n \"prefixCount\": 615\n },\n \"2003-12\": {\n \"doiCount\": 11359181,\n …"}864002026-10-01T14:17:55Z

Attribution: Source: DOI.org

Licence: DOI Foundation handle proxy: resolution metadata is openly available.

Ask with this source

A prompt for your agent that names this source and how to call it through the crw MCP.

  • Monthly DOI and prefix counts

    Use DOI.org (doi) from fastCRW Pergamon, capability "Monthly DOI and prefix counts" (monthly-counts). You want the historical growth of the DOI system - how many DOIs and prefixes existed in a given month - rather than resolution traffic or any single record. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "doi" and capability "monthly-counts". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>

  • DOI prefix record

    Use DOI.org (doi) from fastCRW Pergamon, capability "DOI prefix record" (prefix). You have only the prefix part of a DOI (the 10.xxxx before the slash) and want to know who registered that prefix and which service handles it. Example options: prefix=10.1038, type=HS_SERV, index=1. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "doi" and capability "prefix". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>

  • DOI registration agency

    Use DOI.org (doi) from fastCRW Pergamon, capability "DOI registration agency" (registration-agency). You want to know which agency registered a DOI - typically to decide whether to query Crossref or DataCite next - and you may want to ask about several DOIs at once. Example options: doi=10.5334/dsj-2017-040,10.1038/nature12373. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "doi" and capability "registration-agency". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>

  • DOI resolution statistics

    Use DOI.org (doi) from fastCRW Pergamon, capability "DOI resolution statistics" (resolution-statistics). You want traffic or usage numbers for the DOI system as a whole - how many DOI resolutions happen, how fast, from which countries - not anything about a specific DOI. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "doi" and capability "resolution-statistics". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>