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...57.7 QuickBooks Desktop APIThe QuickBooks Desktop API allows developers to integrate with QuickBooks Desktop applications using qbXML ...57.7 QuickBooks Payroll and Time APIThe QuickBooks Payroll and Time API provides programmatic access to payroll and time-tracking data within Q...57.7 QuickBooks Projects APIThe QuickBooks Projects API is a premium API that provides programmatic access to project data within Quick...57.7 QuickBooks Sales Tax APIThe QuickBooks Sales Tax API is a premium API that provides programmatic access to the automated sales tax ...57.7 Mastercard Small Business Credit AnalyticsSmall Business Credit Analytics provides underwriters with access to near real-time transaction-based insig...57.3

Developing 10 Usable, with meaningful gaps to close

first direct SME APIEndpoint for getting Unsecured SME Loan data49.0 Worldline Direct (Global Online Pay) APIOnline payment API for SMBs providing access to 40+ alternative payment methods, 20+ local acquirers, and c...47.6 Starling Bank SME APIEndpoint for getting Unsecured SME Loan data46.3 Virgin Money UK SME APIEndpoint for getting Unsecured SME Loan data45.4 ADP Embedded Payroll APIThe ADP Embedded Payroll API enables ISVs and platforms to embed ADP payroll capabilities directly into the...43.8 Danske Bank (UK) SME APIThe SME API from Danske Bank (UK) — 1 operation(s) for sme.42.4 Open Connected Banking PlatformOpen's flagship SMB neobanking application. Connects one or more partner-bank current accounts (ICICI, SBI,...42.3 Truist Personal and Small Business Client Contact APIThe Truist Personal and Small Business Client Contact API provides access to client contact information ass...40.7 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...40.1

Thin 23 Limited public surface area

Emerging 10 Early or largely undocumented

Wawanesa Commercial Small Business APIBroker-facing commercial small business API announced by Wawanesa on 2022-03-30, built with HUB Internation...25.2 Sage Accounting v3.1 REST APIREST API for Sage Business Cloud Accounting providing access to contacts, sales invoices, sales credit note...22.0 Moka POS PlatformMoka is GoTo Financial's cloud POS for Indonesian SMBs, acquired in 2020. It exposes integration APIs and w...21.9 Lendio Loan Marketplace APIREST API for connecting small businesses with lenders. Supports loan application submission, eligibility ch...16.8 BambooHRBambooHR is a cloud HRIS for small and mid-size companies with a REST API for employee records, time off, r...15.5 BizBuySellOnline marketplace for buying and selling small and mid-sized businesses, with broker tools and financing p...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...12.4

Companies reaching this through an API (36)

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.

Score breakdown

Frequency

57.3

log-scaled weighted occurrences

Breadth

1.3

spread across providers

Quality lift

62.2

mean composite of providers using it

Cohesion

60.5

strength of nearest seed neighbor

Where this tag comes from

Provider tag245

Api tag49

Openapi tag2

Openapi op tag4

Markets provisional

Kin Score markets whose measured providers carry this tag. Share is the fraction of the market's measured providers that carry it — it describes the market, not this tag.

Market	Share of the market's providers
Accounting and Finance Ops	20%

Cohort brief

Auto-generated

The 230 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

230

of 243 in the catalog

Mean Kin Score

+2.8 vs catalog 22.2

Mean Agent Readiness

12.7

+0.7 vs catalog 12

Spread

0–84.5

median 19.9 · σ 17.2

How the 230 split by band

Exemplar 5Strong 10Developing 35Thin 43Emerging 83Minimal 54

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Access Clarity	35.6	23.9	+11.7	230
Developer Ergonomics	25	23.2	+1.8	230
Discoverability	59.6	57.9	+1.7	230
Operational Transparency	14.2	13	+1.2	230
Contract Quality	17.1	17.2	-0.1	230
Contract Governance	5.5	6.5	-1	230

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%	13%	0
MCP server (first-party)	11%	12%	-1
Agent Skills	0%	0%	0
OAuth scopes	16%	11%	+5
Security	100%	98%	+2
Arazzo workflows	1%	2%	-1
Governance rules	10%	16%	-6

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 Xero 84.5
2 Vendasta 70.9
3 Act! CRM 70
4 AWeber 69
5 Lili 68.7
6 Keap 64.4
7 The Mobile First Company 62
8 Salla 61.6
9 FlowAccount 59.3
10 Sonetel 58.6

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 (243)

APIs with this tag (49)