Registry
Providers using this tag (29)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 1 Complete, well-documented, and agent-ready
Strong 3 Solid coverage with minor gaps
Developing 12 Usable, with meaningful gaps to close
Thin 8 Limited public surface area
Emerging 4 Early or largely undocumented
Minimal 1 Almost no public developer surface
APIs with this tag (235)
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 →
Exemplar 7 Complete, well-documented, and agent-ready
Strong 10 Solid coverage with minor gaps
Developing 55 Usable, with meaningful gaps to close
Thin 116 Limited public surface area
Emerging 46 Early or largely undocumented
Minimal 1 Almost no public developer surface
Companies reaching this through an API (127)
These companies publish an API, specification or operation carrying “Registry” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.
Show all 127 companies ↓
Score breakdown
Related tags
Where this tag comes from
Cohort brief
Auto-generatedThe 28 providers in the APIs.io catalog tagged Registry, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Contract Quality | 42.1 | 17.6 | +24.5 | 28 |
| Operational Transparency | 34.6 | 13.7 | +20.9 | 28 |
| Developer Ergonomics | 42.3 | 23.2 | +19.1 | 28 |
| Access Clarity | 42.3 | 26.5 | +15.8 | 28 |
| Contract Governance | 14.2 | 6.3 | +7.9 | 28 |
| Discoverability | 65.5 | 58.1 | +7.4 | 28 |
A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 32% | 14% | +18 |
| MCP server (first-party) | 25% | 12% | +13 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 21% | 11% | +10 |
| Security | 100% | 98% | +2 |
| Arazzo workflows | 0% | 2% | -2 |
| Governance rules | 46% | 14% | +32 |
mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.
- 1 Scalar 71.7
- 2 Eclipse Foundation 63.6
- 3 JFrog Container Registry 60.6
- 4 x402 List API 58.4
- 5 Buildpacks Io 53.4
- 6 Azure Container Registry 50.9
- 7 NuGet 50.6
- 8 npm 49.8
- 9 Neuronto ARD Registry 44.5
- 10 Smithery 44
- 1 Scalar 57.6
- 2 Smithery 51
- 3 Eclipse Foundation 46
- 4 Neuronto ARD Registry 44.8
- 5 Machine Realms 41
- 6 x402 List API 38.2
- 7 Hey API 32.6
- 8 JFrog Container Registry 31.1
- 9 allagents 30
- 10 Docker Hub 29.8
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.