IDL
Providers using this tag (6)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Thin 2 Limited public surface area
Emerging 4 Early or largely undocumented
Apache ThriftApache Thrift is a cross-language RPC framework originally developed at Facebook for scalable cross-languag...SmithySmithy is an open source, protocol-agnostic interface definition language (IDL) and toolchain developed at ...API SpecificationsMeta-index of the specification languages used to describe APIs, events, schemas, and service interfaces ac...Component ModelThe WebAssembly Component Model is a broad-reaching architecture for building interoperable WebAssembly lib...
APIs with this tag (7)
Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →
Thin 2 Limited public surface area
Emerging 5 Early or largely undocumented
Apache ThriftApache Thrift is a lightweight, language-independent software stack for point-to-point RPC implementation. ...Smithy IDLThe Smithy Interface Definition Language (IDL) is a specification for defining API models using shapes and ...SmithySmithy is an open-source IDL and code-generation framework for defining services and SDKs, created and main...TypeSpecTypeSpec (formerly Cadl) is a language for describing API shapes developed by Microsoft. TypeSpec definitio...WebAssembly Interface Type (WIT)WIT is the interface definition language for the Component Model. WIT describes the imports and exports of ...
Score breakdown
Frequency
25.8
log-scaled weighted occurrences
Breadth
0.2
spread across providers
Quality lift
26.8
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor
Where this tag comes from
Provider tag2
Api tag7
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for tags
7 MCP tools reach this
find_tagsBrowse and filter every tag in the catalog.get_cohortThis tag as a scored cohort — every provider carrying it, with scores.cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This tag
curl "https://apis.io/api/v1/tags/idl"
All tags
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/idl"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/idl/stats" \
-H "X-API-Key: $APIS_IO_KEY"
Discovery needs no key. Ratings and market analysis are Pro.