emerging · -2.3 market domain

Unified API

Score 22.9 / 100 32 providers +5 via APIs 30 APIs Search apis.io →

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
MergeIntegrationPlatformAgent Handler10 APIs72.3BindbeeApplicant TrackingHR IntegrationHRISWorkforce1 API69.3IntegrationOSAgent InfrastructureAI AgentsConnectorsHistorical1 API66.6
Strong 7 Solid coverage with minor gaps
Unified.toIntegration11 APIs63.9AgaveAccountingConstructionIntegrationERP18 APIs59.8ApideckIntegrationA2A4 APIs57.7SupaglueCRMHRISOpen Source9 APIs57.0Integration.app (Membrane)Agentic IntegrationsAI AgentsConnectorsEmbedded Integrations1 API60.3VesselCRMChatSales DialerEmbedded Integrations20 APIs59.3ComposioAI AgentsAuthenticationIntegrationMCP2 APIs55.8
Developing 9 Usable, with meaningful gaps to close
KnitB2BHR IntegrationsHRIS1 API51.6FastnIntegration PlatformB2B SaaSEmbedded Widget2 APIs47.0CodatAccountingIntegration3 APIs42.1TrutoIntegration PlatformHRISApplicant Tracking4 APIs41.6KomboApplicant TrackingEmbedded iPaaSHRISLMS1 API40.7MCP360MCPMCP ServerMCP GatewayAI Agents38 APIs51.8NangoAI AgentsIntegrationAuthenticationSyncing1 API44.7SocialCrawlsocial media scrapingData Extractioncross-platform search1 API42.1PolytomicData IntegrationReverse ETLELT1 API41.8
Thin 6 Limited public surface area
AirCubeArtificial IntelligencePlatformMedia Generation4 APIs38.7EdlinkEducationEdTechRosteringSIS1 API26.3TellerBankingFinancial DataFintechOpen Banking1 API37.7RutterAccountingB2BCommerceFinancial Data1 API35.6StitchAfricaFinancial DataOpen BankingPayments1 API34.7FivetranConnectorsData IntegrationData PipelineETL1 API34.6
Emerging 2 Early or largely undocumented
RevertIntegrationCRMOpen Source1 API24.8HR & PeopleHuman ResourcesHRISPeople OperationsPayroll27 APIs15.5
Minimal 5 Almost no public developer surface
PanoraCRMIntegrationOpen Source1 API10.4IntegrationsIntegrationiPaaSEmbedded iPaaSWorkflow Automation9.6Unified APIsAggregationNormalizationIntegration8.6Cloud ElementsAcquiredConnectorsEmbedded iPaaSIntegration Platform3.8FinverseAPI AggregationAsia PacificFinancial DataOpen Banking2 APIs8.7

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
MergeMerge is the connective infrastructure for production AI. Three product lines: Merge Unified (one API for H...72.3
Strong 2 Solid coverage with minor gaps
Unified.toUnified APIs for HR, ATS, CRM & Authentication. One API to access 360+ integrations across 22 categories wi...63.9ApideckApideck is the leading Unified API that doesn't store sensitive customer data. Build and maintain native in...57.7
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...49.3SAP Open Connectors APIThe SAP Open Connectors API (formerly Cloud Elements) provides a unified REST interface to connect to over ...47.9StackOne Unified ATS API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified ATS AP...45.0StackOne Unified CRM API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified CRM AP...45.0StackOne Unified Documents API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified Docume...45.0StackOne Unified HRIS API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified HRIS A...45.0StackOne Unified IAM API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified IAM AP...45.0StackOne Unified LMS API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified LMS AP...45.0StackOne Unified Marketing API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified Market...45.0StackOne Unified Messaging API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified Messag...45.0StackOne Unified Screening API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified Screen...45.0StackOne Unified Ticketing API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified Ticket...45.0NangoNango provides a unified API platform for building product integrations with 600+ external APIs. It offers ...44.7Codat Bill Pay APIThe Codat Bill Pay API (Sync for Payables) enables neobanks, expense management providers, and B2B payment ...42.1Codat Spend Insights APIThe Codat Spend Insights API enables banks and commercial card issuers to access clients' accounts payable ...42.1Codat Sync for Commerce APIThe Codat Sync for Commerce API automatically replicates and reconciles sales data from merchant point-of-s...42.1Codat Sync for Expenses APIThe Codat Sync for Expenses API enables corporate card and expense management platforms to provide high-qua...42.1Codat Sync for Payroll APIThe Codat Sync for Payroll API enables HR, payroll, and vertical SaaS platforms to integrate their customer...42.1Mercado Pago Orders APINext-generation unified Orders API consolidating payments, captures, refunds, and transactions under a sing...41.8
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...37.4Rutter Accounting APIThe Rutter Accounting API provides a unified interface to read and write data to all major accounting platf...35.6Rutter Commerce APIThe Rutter Commerce API enables reading and writing data to all major commerce platforms through a unified ...35.6Rutter Payments APIThe Rutter Payments API provides a unified interface to read and write data to all major payment platforms ...35.6
Emerging 3 Early or largely undocumented
FinchFinch is a unified API for employment systems (HRIS and payroll) covering employee, company, payment, pay-s...15.5KomboKombo is a European unified HR API normalizing employees, employments, absences, candidates, jobs, and offe...15.5Merge HRISMerge is a unified API platform whose HRIS Unified API normalizes employee, employment, group, time-off, an...15.5
Minimal 1 Almost no public developer surface
Panora Unified APIUnified API platform allowing developers to integrate with hundreds of third-party tools through a single API.10.4

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.

Cloudflare AI Gateway Mercado Pago SAP Integration Suite StackOne TMX Group

Score breakdown

Frequency
48.0
log-scaled weighted occurrences
Breadth
0.7
spread across providers
Quality lift
43.1
mean composite of providers using it
Cohesion
13.7
strength of nearest seed neighbor

Where this tag sits

Integration broader

Related tags

HRIS 9 co-occurrences Integration Platform 5 co-occurrences iPaaS 7 co-occurrences Connections 9 co-occurrences Applicant Tracking 6 co-occurrences Employees 6 co-occurrences

Where this tag comes from

Provider tag35
Api tag30

Cohort brief

Auto-generated

The 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
41.1
+18.9 vs catalog 22.2
Mean Agent Readiness
27.4
+15.4 vs catalog 12
Spread
3.8–72.3
median 42 · σ 19.1
How the 32 split by band
Exemplar 3Strong 7Developing 9Thin 6Emerging 2Minimal 5
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 44.5 17.2 +27.3 32
Developer Ergonomics 45.6 23.2 +22.4 32
Operational Transparency 29.3 13 +16.3 32
Access Clarity 37 23.9 +13.1 32
Contract Governance 16 6.5 +9.5 32
Discoverability 65.3 57.9 +7.4 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
ArtifactThis cohortCatalogDifference
MCP server (any) 38% 13% +25
MCP server (first-party) 38% 12% +26
Agent Skills 0% 0% 0
OAuth scopes 6% 11% -5
Security 91% 98% -7
Arazzo workflows 9% 2% +7
Governance rules 69% 16% +53

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. 1 Merge 72.3
  2. 2 Bindbee 69.3
  3. 3 IntegrationOS 66.6
  4. 4 Unified.to 63.9
  5. 5 Integration.app (Membrane) 60.3
  6. 6 Agave 59.8
  7. 7 Vessel 59.3
  8. 8 Apideck 57.7
  9. 9 Supaglue 57
  10. 10 Composio 55.8
Top by Agent Readiness
  1. 1 IntegrationOS 58.5
  2. 2 Integration.app (Membrane) 57.3
  3. 3 Merge 52.2
  4. 4 Bindbee 49
  5. 5 Agave 45.6
  6. 6 SocialCrawl 39
  7. 7 Knit 38.5
  8. 8 Codat 37.3
  9. 9 Apideck 36.6
  10. 10 Fivetran 36.4
All 32 members of this roster resolve to a scored provider in the catalog.
Coverage caveat. 21 of 32 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 24 October 2026, across 31984 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.

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.
All 92 tools →

Call it yourself

curl for this page
This tag 
curl "https://apis.io/api/v1/tags/unified-api"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/unified-api"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/unified-api/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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