Unified API
Providers using this tag (32)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 3 Complete, well-documented, and agent-ready
Strong 8 Solid coverage with minor gaps
Developing 8 Usable, with meaningful gaps to close
Emerging 3 Early or largely undocumented
Minimal 2 Almost no public developer surface
APIs with this tag (30)
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 1 Complete, well-documented, and agent-ready
Strong 2 Solid coverage with minor gaps
Developing 19 Usable, with meaningful gaps to close
Cloudflare AI Gateway Unified REST APIUnified REST API launched May 21, 2026 that lets developers call any supported model through a single endpo...Mercado Pago Orders APINext-generation unified Orders API consolidating payments, captures, refunds, and transactions under a sing...SAP Open Connectors APIThe SAP Open Connectors API (formerly Cloud Elements) provides a unified REST interface to connect to over ...StackOne Unified ATS APIStackOne Unified ATS API standardizes recruitment workflows across applicant tracking system providers, pro...StackOne Unified CRM APIStackOne Unified CRM API provides a standardized interface for managing customer contacts, accounts, and op...StackOne Unified Documents APIStackOne Unified Documents API provides a standardized interface for file and knowledge management across p...StackOne Unified HRIS APIStackOne Unified HRIS API provides a single, standardized interface to interact with multiple HR informatio...StackOne Unified IAM APIStackOne Unified IAM API provides a standardized interface for identity and access management across provid...StackOne Unified LMS APIStackOne Unified LMS API standardizes learning management across platforms, streamlining course delivery, u...StackOne Unified Marketing APIStackOne Unified Marketing API standardizes campaign management across platforms, streamlining messages (SM...StackOne Unified Messaging APIStackOne Unified Messaging API standardizes communication workflows across platforms, with consistent data ...StackOne Unified Screening APIStackOne Unified Screening API standardizes candidate verification across platforms, streamlining backgroun...StackOne Unified Ticketing APIStackOne Unified Ticketing API standardizes support workflows across helpdesk platforms, with consistent da...NangoNango provides a unified API platform for building product integrations with 600+ external APIs. It offers ...Codat Bill Pay APIThe Codat Bill Pay API (Sync for Payables) enables neobanks, expense management providers, and B2B payment ...Codat Spend Insights APIThe Codat Spend Insights API enables banks and commercial card issuers to access clients' accounts payable ...Codat Sync for Commerce APIThe Codat Sync for Commerce API automatically replicates and reconciles sales data from merchant point-of-s...Codat Sync for Expenses APIThe Codat Sync for Expenses API enables corporate card and expense management platforms to provide high-qua...Codat Sync for Payroll APIThe Codat Sync for Payroll API enables HR, payroll, and vertical SaaS platforms to integrate their customer...
Thin 4 Limited public surface area
TMX Data Science API V2 (Insight API)Second-generation GET-based REST surface on insightapi.tmxanalytics.com/v2 covering broker analytics, issue...Rutter Accounting APIThe Rutter Accounting API provides a unified interface to read and write data to all major accounting platf...Rutter Commerce APIThe Rutter Commerce API enables reading and writing data to all major commerce platforms through a unified ...Rutter Payments APIThe Rutter Payments API provides a unified interface to read and write data to all major payment platforms ...
Emerging 4 Early or largely undocumented
FinchFinch is a unified API for employment systems (HRIS and payroll) covering employee, company, payment, pay-s...KomboKombo is a European unified HR API normalizing employees, employments, absences, candidates, jobs, and offe...Merge HRISMerge is a unified API platform whose HRIS Unified API normalizes employee, employment, group, time-off, an...Panora Unified APIUnified API platform allowing developers to integrate with hundreds of third-party tools through a single API.
Companies reaching this through an API (5)
These companies publish an API, specification or operation carrying “Unified API” 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.
Score breakdown
Frequency
48.2
log-scaled weighted occurrences
Breadth
0.8
spread across providers
Quality lift
53.3
mean composite of providers using it
Cohesion
15.6
strength of nearest seed neighbor
Where this tag sits
Related tags
HRIS 10 co-occurrences
iPaaS 6 co-occurrences
Connections 9 co-occurrences
Applicant Tracking 6 co-occurrences
Employees 6 co-occurrences
LMS 5 co-occurrences
Where this tag comes from
Provider tag32
Api tag30
Cohort brief
Auto-generatedThe 32 providers in the APIs.io catalog tagged Unified API, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
32
all scored
Mean Kin Score
43.3
+20.4 vs catalog 22.9
Mean Agent Readiness
27.4
+15.5 vs catalog 11.9
Spread
3.7–73.4
median 41.8 · σ 17.6
How the 32 split by band
Exemplar 3Strong 8Developing 8Thin 8Emerging 3Minimal 2
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Contract Quality | 46.3 | 17.6 | +28.7 | 32 |
| Developer Ergonomics | 46.7 | 23.2 | +23.5 | 32 |
| Access Clarity | 45.1 | 26.5 | +18.6 | 32 |
| Operational Transparency | 31.8 | 13.7 | +18.1 | 32 |
| Contract Governance | 15.1 | 6.3 | +8.8 | 32 |
| Discoverability | 64.8 | 58.1 | +6.7 | 32 |
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.
What this cohort publishes
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 41% | 14% | +27 |
| MCP server (first-party) | 31% | 12% | +19 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 6% | 11% | -5 |
| Security | 97% | 98% | -1 |
| Arazzo workflows | 9% | 2% | +7 |
| Governance rules | 66% | 14% | +52 |
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.
Top by Kin Score
- 1 Merge 73.4
- 2 Bindbee 70.4
- 3 IntegrationOS 67.6
- 4 Unified.to 64.9
- 5 Vessel 64
- 6 Agave 61.3
- 7 Integration.app (Membrane) 61.1
- 8 Apideck 58.3
- 9 Supaglue 57.9
- 10 Composio 57.1
Top by Agent Readiness
- 1 IntegrationOS 59
- 2 Integration.app (Membrane) 57.7
- 3 Merge 51.6
- 4 Bindbee 47.1
- 5 Agave 42.5
- 6 Codat 39.2
- 7 SocialCrawl 37.7
- 8 Fivetran 35
- 9 Vessel 32.9
- 10 Composio 30.6
All 32 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
5 October 2026, across 29093
providers, using the same computation served by the
APIs.io cohort API. Briefs are published for rosters of
5 or more scored providers; below that a distribution is not meaningful.
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.