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Cap'n Proto

data serialization format and Remote Procedure Call (RPC) framework
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Cap'n Proto

Summary

Cap'n Proto is a data serialization format[1].

Key Facts

  • Cap'n Proto's instance of is recorded as data serialization format[2].
  • Cap'n Proto's instance of is recorded as software library[3].
  • Cap'n Proto's maintained by is recorded as Cloudflare[4].
  • Cap'n Proto followed Protocol Buffers[5].
  • Cap'n Proto's copyright license is recorded as MIT License[6].
  • Cap'n Proto's programmed in is recorded as Q2407[7].
  • Cap'n Proto's software version identifier is recorded as 0.1.0[8].
  • Cap'n Proto's software version identifier is recorded as 0.2.0[9].
  • Cap'n Proto's software version identifier is recorded as 0.2.1[10].
  • Cap'n Proto's software version identifier is recorded as 0.3.0[11].
  • Cap'n Proto's software version identifier is recorded as 0.4.0[12].
  • Cap'n Proto's software version identifier is recorded as 0.4.1[13].
  • Cap'n Proto's software version identifier is recorded as 0.4.1.1[14].
  • Cap'n Proto's software version identifier is recorded as 0.4.1.2[15].
  • Cap'n Proto's software version identifier is recorded as 0.5.0[16].
  • Cap'n Proto's software version identifier is recorded as 0.5.1[17].
  • Cap'n Proto's software version identifier is recorded as 0.5.1.1[18].
  • Cap'n Proto's software version identifier is recorded as 0.5.1.2[19].
  • Cap'n Proto's software version identifier is recorded as 0.5.2[20].
  • Cap'n Proto's software version identifier is recorded as 0.5.3[21].
  • Cap'n Proto's software version identifier is recorded as 0.5.3.1[22].
  • Cap'n Proto's software version identifier is recorded as 0.6.0[23].
  • Cap'n Proto's software version identifier is recorded as 0.6.1[24].
  • Cap'n Proto's software version identifier is recorded as 0.7.0[25].
  • Cap'n Proto's software version identifier is recorded as 0.8.0[26].

Body

Designation and Status

Recorded instance of include data serialization format[2] and software library[3].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . blog.cloudflare.com. blog.cloudflare.com. Provenance: wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  8. [9] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  9. [10] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  10. [11] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  11. [12] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  12. [13] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  13. [14] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  14. [15] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  15. [16] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  16. [17] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  17. [18] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  18. [19] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  19. [20] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  20. [21] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  21. [22] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  22. [23] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  23. [24] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  24. [25] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  25. [26] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Cap'n Proto. Retrieved May 3, 2026, from https://4ort.xyz/entity/cap-n-proto
MLA “Cap'n Proto.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/cap-n-proto.
BibTeX @misc{4ortxyz_cap-n-proto_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Cap'n Proto}}, year = {2026}, url = {https://4ort.xyz/entity/cap-n-proto}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Cap'n Proto — https://4ort.xyz/entity/cap-n-proto (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/cap-n-proto · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 5w ago · Github-wiki-bot bot · 2026-07-10 view diff on Wikidata ↗
    Wikidata description → data serialization format and Remote Procedure Call (RPC) framework
    Author name string → Kenton Varda
    Has use → RPC
    File format wiki page id → Cap'n_Proto
    + 17 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-statements-single-property-update:1||2 */ [[Property:P348]], Update with GitHub data ([[:toollabs:editgroups/b/CB/f9f06fc4f3da|details]])"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.