established · 1.2

Unified-API

Score 24.0 / 100 37 providers 39 APIs Search apis.io →
Variants seen in the corpus: Unified APIUnified-APIUnified_APIunified-api

Providers using this tag (37)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 2 Complete, well-documented, and agent-ready
VesselCRMChatDialerEmbedded Integrations20 APIs72.1BenchlingLife SciencesBiotechR&DMolecular Biology58 APIs67.8
Strong 6 Solid coverage with minor gaps
Unified.toIntegration140 APIs60.4MergeIntegrationPlatformAgent Handler118 APIs59.1SupaglueCRMHRISOpen-Source40 APIs56.3ApideckIntegration54 APIs55.9Cloudflare AI GatewayAI GatewayLLMObservabilityCaching7 APIs55.5ComposioAI AgentsAuthenticationIntegrationMCP38 APIs54.9
Developing 10 Usable, with meaningful gaps to close
MCP360MCPMCP ServerMCP GatewayAI Agents38 APIs51.9Mercado PagoPaymentsCheckoutSubscriptionPoint-of-Sale44 APIs47.5SAP Integration SuiteAPI ManagementCloud IntegrationEnterprise IntegrationEvent Mesh16 APIs46.8StackOneIntegrationiPaaS33 APIs46.7Codat37 APIs45.6NangoAI AgentsIntegrationAuthenticationSyncing6 APIs43.6FinchEmploymentHRISPayrollBenefits3 APIs42.4TMX GroupFinancialMarket DataStocksExchange11 APIs42.0TrutoIntegration PlatformHRISATS18 APIs41.9Integration.app (Membrane)Agentic IntegrationsAI AgentsConnectorsEmbedded Integrations16 APIs41.4
Thin 12 Limited public surface area
RutterAccountingB2BCommerceFinancial Data9 APIs39.2TellerBankingFinancial DataFintechOpen Banking4 APIs38.9StitchAfricaFinancial DataOpen BankingPayments10 APIs38.2KomboATSEmbedded iPaaSHRISLMS8 APIs37.6RevertIntegrationCRMOpen-Source13 APIs37.6EdlinkEducationEdTechRosteringSIS12 APIs36.9Alloy AutomationiPaaSIntegrationEmbedded10 APIs36.7FivetranConnectorsData IntegrationData PipelineETL9 APIs35.2PolytomicData IntegrationReverse ETLELT21 APIs35.2KnitB2BHR IntegrationsHRIS7 APIs33.8RevertEmbedded iPaaSIntegrationProduct Integrations6 APIs27.3CensusConnectorsData ActivationData WarehouseDestinations10 APIs27.1
Emerging 5 Early or largely undocumented
Leaf AgricultureAgricultureFarm DataField BoundariesMachine Operations59 APIs22.3IntegrationOSAgent InfrastructureAI AgentsConnectorsHistorical1 API18.6HR & PeopleHRHRISPeople OperationsPayroll27 APIs16.4InboxEmailInboxMessagingDeliverability2 APIs13.4PanoraCRMIntegrationOpen-Source1 API12.4
Minimal 2 Almost no public developer surface
FinverseAPI AggregationAsia PacificFinancial DataOpen Banking2 APIs9.3Cloud ElementsAcquiredConnectorsEmbedded iPaaSIntegration Platform5.3

APIs with this tag (39)

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 6 Complete, well-documented, and agent-ready
Vessel Chat Unified APIThe Vessel Chat Unified API normalizes chat platform objects across Slack and Microsoft Teams under /api/un...72.1Vessel CRM Unified APIThe Vessel CRM Unified API (v2) normalizes CRM objects across Salesforce, HubSpot, Zoho, Pipedrive, Close, ...72.1Vessel Dialer Unified APIThe Vessel Dialer Unified API normalizes telephony/dialer objects across Aircall, Dialpad and RingCentral u...72.1Vessel Marketing Automation Unified APIThe Vessel Marketing Automation Unified API normalizes marketing automation objects across Mailchimp, Activ...72.1Vessel Sales Engagement Unified APIThe Vessel Sales Engagement Unified API normalizes sales engagement objects across Outreach, Salesloft, Apo...72.1Benchling API v3Benchling's unified v3 REST API — a single contract of 805 paths and 874 operations spanning the electronic...67.8
Strong 4 Solid coverage with minor gaps
Unified.toUnified APIs for HR, ATS, CRM & Authentication. One API to access 360+ integrations across 22 categories wi...60.4MergeMerge is the connective infrastructure for production AI. Three product lines: Merge Unified (one API for H...59.1ApideckApideck is the leading Unified API that doesn't store sensitive customer data. Build and maintain native in...55.9Cloudflare AI Gateway Unified REST APIUnified REST API launched May 21, 2026 that lets developers call any supported model through a single endpo...55.5
Developing 20 Usable, with meaningful gaps to close
Mercado Pago Orders APINext-generation unified Orders API consolidating payments, captures, refunds, and transactions under a sing...47.5SAP Open Connectors APIThe SAP Open Connectors API (formerly Cloud Elements) provides a unified REST interface to connect to over ...46.8StackOne Unified ATS APIStackOne Unified ATS API standardizes recruitment workflows across applicant tracking system providers, pro...46.7StackOne Unified CRM APIStackOne Unified CRM API provides a standardized interface for managing customer contacts, accounts, and op...46.7StackOne Unified Documents APIStackOne Unified Documents API provides a standardized interface for file and knowledge management across p...46.7StackOne Unified HRIS APIStackOne Unified HRIS API provides a single, standardized interface to interact with multiple HR informatio...46.7StackOne Unified IAM APIStackOne Unified IAM API provides a standardized interface for identity and access management across provid...46.7StackOne Unified LMS APIStackOne Unified LMS API standardizes learning management across platforms, streamlining course delivery, u...46.7StackOne Unified Marketing APIStackOne Unified Marketing API standardizes campaign management across platforms, streamlining messages (SM...46.7StackOne Unified Messaging APIStackOne Unified Messaging API standardizes communication workflows across platforms, with consistent data ...46.7StackOne Unified Screening APIStackOne Unified Screening API standardizes candidate verification across platforms, streamlining backgroun...46.7StackOne Unified Ticketing APIStackOne Unified Ticketing API standardizes support workflows across helpdesk platforms, with consistent da...46.7Codat Bill Pay APIThe Codat Bill Pay API (Sync for Payables) enables neobanks, expense management providers, and B2B payment ...45.6Codat Spend Insights APIThe Codat Spend Insights API enables banks and commercial card issuers to access clients' accounts payable ...45.6Codat Sync for Commerce APIThe Codat Sync for Commerce API automatically replicates and reconciles sales data from merchant point-of-s...45.6Codat Sync for Expenses APIThe Codat Sync for Expenses API enables corporate card and expense management platforms to provide high-qua...45.6Codat Sync for Payroll APIThe Codat Sync for Payroll API enables HR, payroll, and vertical SaaS platforms to integrate their customer...45.6NangoNango provides a unified API platform for building product integrations with 600+ external APIs. It offers ...43.6TMX Data Science API V2 (Insight API)Second-generation GET-based REST surface on insightapi.tmxanalytics.com/v2 covering broker analytics, issue...42.0Membrane (formerly Integration.app) PlatformThe Membrane platform (formerly Integration.app) provides a unified surface for building embedded and agent...41.4
Thin 3 Limited public surface area
Rutter Accounting APIThe Rutter Accounting API provides a unified interface to read and write data to all major accounting platf...39.2Rutter Commerce APIThe Rutter Commerce API enables reading and writing data to all major commerce platforms through a unified ...39.2Rutter Payments APIThe Rutter Payments API provides a unified interface to read and write data to all major payment platforms ...39.2
Emerging 6 Early or largely undocumented
One (successor to IntegrationOS / Pica)One is the current successor brand to IntegrationOS and Pica. It provides agent infrastructure with a unifi...18.6FinchFinch is a unified API for employment systems (HRIS and payroll) covering employee, company, payment, pay-s...16.4KomboKombo is a European unified HR API normalizing employees, employments, absences, candidates, jobs, and offe...16.4Merge HRISMerge is a unified API platform whose HRIS Unified API normalizes employee, employment, group, time-off, an...16.4Nylas Email APINylas exposes a unified REST API for email, calendar, contacts, and scheduling across Google, Microsoft, iC...13.4Panora Unified APIUnified API platform allowing developers to integrate with hundreds of third-party tools through a single API.12.4

Score breakdown

Frequency
49.6
log-scaled weighted occurrences
Breadth
1.0
spread across providers
Quality lift
48.1
mean composite of providers using it
Cohesion
11.7
strength of nearest seed neighbor

Related tags

HRIS 8 co-occurrences ATS 5 co-occurrences iPaaS 5 co-occurrences Connections 8 co-occurrences Proxy 5 co-occurrences Connectors 6 co-occurrences Integration 19 co-occurrences CRM 9 co-occurrences

Where this tag comes from

Provider tag30
Api tag39

Cohort brief

Auto-generated

The 37 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
37
all scored
Mean Kin Score
39.3
+18.6 vs catalog 20.7
Mean Agent Readiness
21.4
+11.7 vs catalog 9.7
Spread
5.3–72.1
median 39.2 · σ 15.8
How the 37 split by band
Exemplar 2Strong 6Developing 10Thin 12Emerging 5Minimal 2
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 46.3 17.5 +28.8 37
Developer Ergonomics 36.7 17.9 +18.8 37
Access Clarity 39.9 22.3 +17.6 37
Operational Transparency 28.3 11.3 +17 37
Discoverability 69.1 60.4 +8.7 37
Contract Governance 13.6 6.4 +7.2 37

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) 22% 16% +6
MCP server (first-party) 8% 7% +1
Agent Skills 0% 0% 0
OAuth scopes 11% 9% +2
Security 100% 88% +12
Arazzo workflows 11% 2% +9
Governance rules 57% 13% +44

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 Vessel 72.1
  2. 2 Benchling 67.8
  3. 3 Unified.to 60.4
  4. 4 Merge 59.1
  5. 5 Supaglue 56.3
  6. 6 Apideck 55.9
  7. 7 Cloudflare AI Gateway 55.5
  8. 8 Composio 54.9
  9. 9 MCP360 51.9
  10. 10 Mercado Pago 47.5
Top by Agent Readiness
  1. 1 Benchling 39.6
  2. 2 Codat 39.2
  3. 3 Composio 37.1
  4. 4 Vessel 32.9
  5. 5 Merge 31.9
  6. 6 Apideck 30.9
  7. 7 Supaglue 30.4
  8. 8 Polytomic 27.3
  9. 9 MCP360 27
  10. 10 Fivetran 26.8
All 37 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 25 August 2026, across 26891 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

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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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