emerging · -2.1 market domain

B2B Data

Score 20.5 / 100 27 providers 5 APIs Search apis.io →

Providers using this tag (27)

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

Exemplar 7 Complete, well-documented, and agent-ready
ZoomInfoB2BCompany DataContact Database7 APIs86.8SurfeContact DataSales IntelligenceData Enrichment1 API77.3LeadspaceMCPAI AgentsCustomer Data Platform3 APIs71.2CoresignalAgentic SearchCompaniesCompany Data3 APIs69.7Apollo.ioSales IntelligenceProspectingEngagement5 APIs68.6LastDatabaseContact DataLead GenerationEmail Verification1 API67.9The Companies APICompany DataData EnrichmentFirmographicsWeb Intelligence1 API67.3
Strong 8 Solid coverage with minor gaps
ExploriumData EnrichmentCompany DataProspect Enrichment1 API66.4People Data LabsData EnrichmentWeb IntelligencePerson DataCompany Data2 APIs66.4RevenueBaseCompanyData EnrichmentEmail Verification2 APIs58.9FullEnrichContact EnrichmentEmail FinderPhone Finder1 API65.6EnrichData EnrichmentContact DiscoveryWeb Intelligence7 APIs62.2RB2BIdentity ResolutionVisitor IdentificationLead Generation4 APIs60.8LeadIQSales IntelligenceContact DataLead Generation2 APIs58.1CompanyDataCompanyCompany DataBusiness Registry1 API57.7
Developing 8 Usable, with meaningful gaps to close
CrunchbaseCompany DataWeb IntelligenceFunding DataFirmographics6 APIs53.8ContactOutCompanyContact DataEmail FinderData Enrichment15 APIs53.2AdaptContact DataCompany DataLead Intelligence1 API52.4DatacircleCompanyMCPAPI Directory3 APIs47.8LandbaseCompanyGo-To-MarketSalesMarketing1 API47.5AlbacrossCompanyLead GenerationIntent Data1 API46.7The OrgCompanyOrganizational ChartsPeople DataSales Intelligence1 API45.7TradeDataHub Public APIcontractor dataBusiness ListingsDatasets1 API43.5
Thin 1 Limited public surface area
LeadGeniusCompanyData EnrichmentLead GenerationSales1 API36.9
Emerging 2 Early or largely undocumented
PREDIK Data-DrivenWeb IntelligenceData EnrichmentCompany Data1 API15.9TungeeCompanySales IntelligenceCRMLead Generation14.4
Minimal 1 Almost no public developer surface
Business Leads WorldCompanyLead GenerationMerchant Cash AdvanceBusiness Lending2.3

APIs with this tag (5)

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 3 Solid coverage with minor gaps
Explorium AgentSource MCP ServerNative remote Model Context Protocol server exposing the AgentSource data as 11 agent tools - match-busines...66.4RB2B Enrichment APICredit-metered Enrichment endpoints that take a known identifier — hashed email (MD5), plaintext email, or ...60.8RB2B Identification APICredit-metered Identification endpoints that convert anonymous web signals (IP addresses) into business ide...60.8
Developing 2 Usable, with meaningful gaps to close
Landbase Platform APIThe Landbase cloud gateway that landbase-cli calls in platform mode. It backs natural-language audience sea...47.5Albacross Enrich APIResolves a website domain to the same firmographic company record the Reveal API returns — name, country, r...46.7

Score breakdown

Frequency
38.4
log-scaled weighted occurrences
Breadth
0.3
spread across providers
Quality lift
54.3
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor

Related tags

Firmographics 9 co-occurrences Contact Data 8 co-occurrences Sales Intelligence 17 co-occurrences Web Intelligence 6 co-occurrences Company Search 5 co-occurrences Data Enrichment 21 co-occurrences Company Data 10 co-occurrences Prospecting 5 co-occurrences

Where this tag comes from

Provider tag27
Api tag5

Cohort brief

Auto-generated

The 27 providers in the APIs.io catalog tagged B2B Data, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
27
all scored
Mean Kin Score
54.3
+30.2 vs catalog 24.1
Mean Agent Readiness
39
+24.9 vs catalog 14.1
Spread
2.3–86.8
median 58.1 · σ 18.9
How the 27 split by band
Exemplar 7Strong 8Developing 8Thin 1Emerging 2Minimal 1
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Access Clarity 75.5 30 +45.5 27
Operational Transparency 43.2 13.2 +30 27
Developer Ergonomics 52.8 24.5 +28.3 27
Contract Quality 45.5 18.6 +26.9 27
Discoverability 72.8 59.1 +13.7 27
Contract Governance 21.4 9.7 +11.7 27

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) 67% 18% +49
MCP server (first-party) 70% 16% +54
Agent Skills 0% 0% 0
OAuth scopes 44% 13% +31
Security 100% 99% +1
Arazzo workflows 7% 1% +6
Governance rules 74% 36% +38

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 ZoomInfo 86.8
  2. 2 Surfe 77.3
  3. 3 Leadspace 71.2
  4. 4 Coresignal 69.7
  5. 5 Apollo.io 68.6
  6. 6 LastDatabase 67.9
  7. 7 The Companies API 67.3
  8. 8 Explorium 66.4
  9. 9 People Data Labs 66.4
  10. 10 FullEnrich 65.6
Top by Agent Readiness
  1. 1 ZoomInfo 64.3
  2. 2 FullEnrich 63.5
  3. 3 LastDatabase 63.4
  4. 4 Apollo.io 59.2
  5. 5 Explorium 58.6
  6. 6 LeadIQ 56.3
  7. 7 Surfe 53.7
  8. 8 Coresignal 53.7
  9. 9 Crunchbase 50.2
  10. 10 Leadspace 44.9
All 27 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 14 November 2026, across 41591 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.

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  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
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