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 →

Strong 6 Solid coverage with minor gaps

QuickBooks Custom Fields APIThe QuickBooks Custom Fields API is a premium API that provides programmatic access to custom field definit...59.2 QuickBooks Desktop APIThe QuickBooks Desktop API allows developers to integrate with QuickBooks Desktop applications using qbXML ...59.2 QuickBooks Payroll and Time APIThe QuickBooks Payroll and Time API provides programmatic access to payroll and time-tracking data within Q...59.2 QuickBooks Projects APIThe QuickBooks Projects API is a premium API that provides programmatic access to project data within Quick...59.2 QuickBooks Sales Tax APIThe QuickBooks Sales Tax API is a premium API that provides programmatic access to the automated sales tax ...59.2 Mastercard Small Business Credit AnalyticsSmall Business Credit Analytics provides underwriters with access to near real-time transaction-based insig...55.7

Developing 9 Usable, with meaningful gaps to close

first direct SME APIEndpoint for getting Unsecured SME Loan data49.0 Starling Bank SME APIEndpoint for getting Unsecured SME Loan data46.3 Virgin Money UK SME APIEndpoint for getting Unsecured SME Loan data45.3 ADP Embedded Payroll APIThe ADP Embedded Payroll API enables ISVs and platforms to embed ADP payroll capabilities directly into the...44.8 The Co-operative Bank SME APIEndpoint for getting Unsecured SME Loan data42.7 Truist Personal and Small Business Client Contact APIThe Truist Personal and Small Business Client Contact API provides access to client contact information ass...42.2 Danske Bank (UK) SME APIThe SME API from Danske Bank (UK) — 1 operation(s) for sme.41.9 AIB Group (UK) SME APIEndpoint for getting Unsecured SME Loan data40.6 Proofpoint Essentials Threat (SIEM) APIProofpoint Essentials — the SMB and MSP edition of the platform — exposes the same /v2/siem shape as TAP on...40.0

Thin 26 Limited public surface area

Emerging 10 Early or largely undocumented

Open Connected Banking PlatformOpen's flagship SMB neobanking application. Connects one or more partner-bank current accounts (ICICI, SBI,...25.5 Wawanesa Commercial Small Business APIBroker-facing commercial small business API announced by Wawanesa on 2022-03-30, built with HUB Internation...25.2 Lendio Loan Marketplace APIREST API for connecting small businesses with lenders. Supports loan application submission, eligibility ch...24.1 Sage Accounting v3.1 REST APIREST API for Sage Business Cloud Accounting providing access to contacts, sales invoices, sales credit note...20.6 BizBuySellOnline marketplace for buying and selling small and mid-sized businesses, with broker tools and financing p...17.8 BambooHRBambooHR is a cloud HRIS for small and mid-size companies with a REST API for employee records, time off, r...15.5 GustoGusto is a payroll, benefits, and HR platform for small business with a partner REST API for embedded payro...15.5 PersonioPersonio is a European all-in-one HR software for SMBs with a REST API for employees, attendance, absences,...15.5 WorkableWorkable is a recruiting platform with a REST API for jobs, candidates, activities, comments, and offers, p...15.5 DTRA Doing BusinessProcurement and partnership portal that publishes solicitations, Broad Agency Announcements, small-business...14.0

Companies reaching this through an API (38)

These companies publish an API, specification or operation carrying “Small Business” 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.

ADP AIB Group (UK) Aldermore Bank Bank of Ireland (UK) Bank of Scotland Check Point CoStar Group Coventry Building Society Danske Bank (UK) Defense Threat Reduction Agency first direct GB Bank GoTo Group (Gojek + Tokopedia) Halifax HR & People Leeds Building Society Lloyds Banking Group Mastercard Metro Bank Mettle Monument Bank Paragon Bank Principality Building Society Proofpoint Recognise Bank Santander UK Secure Trust Bank Shawbrook Bank Skipton Building Society Stack Overflow Starling Bank The Co-operative Bank Truist Financial TSB Bank UK Open Banking Virgin Money UK Wawanesa Insurance Worldline

Score breakdown

Frequency

57.6

log-scaled weighted occurrences

Breadth

1.4

spread across providers

Quality lift

59.4

mean composite of providers using it

Cohesion

64.2

strength of nearest seed neighbor

Where this tag comes from

Provider tag230

Api tag51

Openapi tag2

Openapi op tag4

Cohort brief

Auto-generated

The 217 providers in the APIs.io catalog tagged Small Business, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

217

all scored

Mean Kin Score

25.5

+2.6 vs catalog 22.9

Mean Agent Readiness

12.5

+0.6 vs catalog 11.9

Spread

0–70.8

median 23.1 · σ 17.1

How the 217 split by band

Exemplar 4Strong 11Developing 29Thin 47Emerging 79Minimal 47

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Access Clarity	38.3	26.5	+11.8	217
Developer Ergonomics	25.2	23.2	+2	217
Discoverability	59.6	58.1	+1.5	217
Operational Transparency	14.7	13.7	+1	217
Contract Quality	16.9	17.6	-0.7	217
Contract Governance	4.9	6.3	-1.4	217

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)	13%	14%	-1
MCP server (first-party)	12%	12%	0
Agent Skills	0%	0%	0
OAuth scopes	17%	11%	+6
Security	100%	98%	+2
Arazzo workflows	1%	2%	-1
Governance rules	7%	14%	-7

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 Vendasta 70.8
2 Act! CRM 69.9
3 Salla 68.3
4 AWeber 67.7
5 VeraDial 66.1
6 Keap 63.9
7 HitPay 63.4
8 The Mobile First Company 62
9 Lili 60.8
10 FlowAccount 59.3

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/small-business"

All tags

curl "https://apis.io/api/v1/tags?limit=25"

As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/small-business"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/small-business/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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Small Business

Providers using this tag (230)

APIs with this tag (51)