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Tools · api specs data formats · Alternatives

Schema.org alternatives

As of 4 November 2026, 39 api specs data formats are named by companies instead of Schema.org: JSON by 6,396 companies, XML by 5,264, Model Context Protocol by 4,892.

As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Schema.org, companies in postings
103
Most used alternative
JSON · 6,396
Fastest hiring, 90 days
JSON
Alternatives ranked
39
Catalogue
T-1.0.1-prov
01Ranked by evidence

api specs data formats companies choose instead of Schema.org

Companies naming each tool in their own postings, and postings in the last 90 days. Bars are relative to the category leader.

#AlternativeCompaniescompaniesvs Schema.orgpostings, 90 dCompare
1
JSONEcma International
6,3966210%19,737soon
2
XMLW3C
5,2645111%12,841soon
3
Model Context ProtocolAnthropic
4,8924750%16,002soon
4
GraphQLGraphQL Foundation
4,0893970%12,076soon
5
SOAPW3C
3,6613554%10,243soon
6
gRPCCloud Native Computing Foundation
1,7531702%4,571soon
7
OpenAPIOpenAPI Initiative
1,4321390%3,245soon
8
YAMLYAML Language Development Team
1,029999%2,569soon
9
Microsoft GraphMicrosoft
942915%2,115soon
10
ODataOASIS
844819%3,073soon
11
XSLTW3C
820796%1,501soon
12
CSVIETF
782759%1,180soon
13
SAP IDocSAP
722701%2,746soon
14
Apache ParquetApache Software Foundation
690670%1,246soon
15
Protocol BuffersGoogle
566550%1,102soon
16
Agent2Agent (A2A) ProtocolLinux Foundation
443430%1,572soon
17
PDFAdobe
405393%839soon
18
ANSI X12ASC X12
371360%761soon
19
Markdown
337327%585soon
20
XML Schema (XSD)W3C
291283%551soon
21
Apache AvroApache Software Foundation
280272%560soon
22
ISO 20022ISO
272264%763soon
23
WSDLW3C
256249%511soon
24
UN/EDIFACTUnited Nations
253246%406soon
25
RDFW3C
221215%813soon
26
Web Ontology LanguageW3C
216210%703soon
27
JSON SchemaJSON Schema organization
169164%301soon
28
H.264ITU-T / ISO
160155%327soon
29
XBRLXBRL International
152148%294soon
30
RedfishDMTF
137133%661soon
31
H.265ITU-T
126122%244soon
32
RSSRSS Advisory Board
122118%321soon
33
Apache ORCApache Software Foundation
118115%235soon
34
tRPCtRPC contributors
106103%188soon
35
RAMLMuleSoft
105102%187soon
36
JSON-LDW3C
9996%146soon
37
DITAOASIS
9693%197soon
38
YANGIETF
8986%286soon
39
OpenUSDAlliance for OpenUSD
8885%291soon
38,897 companies name a api specs data format in their postings.

Filter on any of them, or on Schema.org users who also name an alternative, and open the person who owns the stack.

Get the full list Watch this category

Start free, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

39 api specs data formats are named by companies instead of Schema.org: JSON by 6,396 companies, XML by 5,264, Model Context Protocol by 4,892, measured from their own job postings. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/schema-org/alternatives)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • RankingCompanies whose own postings name the tool as the team's system, from the Breaknorm technology catalogue T-1.0.1-prov. Editions are folded into their parent product.
  • 90-day postingsOpen postings first seen or posted in the last 90 days that name the tool.
  • Not includedRatings, prices, feature claims, sponsored positions.
FAQ

Schema.org alternatives: questions

What is the most used alternative to Schema.org?

JSON: 6,396 companies name it in their own job postings, against 103 for Schema.org.

How is this list ranked?

By the number of companies whose own postings name the tool as the team's system (Breaknorm technology catalogue T-1.0.1-prov), then by postings in the last 90 days. No ratings, no vendor input, no sponsored positions.

Does this say which is better?

No. It says who uses what, by company size, industry and country, so you can see which tools companies like yours choose. For features and prices, read the vendors.

Can I get the companies on any of these?

Yes: click the tool, see the first 20 companies, and sign up for the full list with verified e-mails. Counting is free.

Companies and people

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Every company on Schema.org
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