niche · 0.4 marketcapability domainschema

Human-in-the-Loop

Score 18.0 / 100 14 providers +3 via APIs 7 APIs Search apis.io →

Providers using this tag (14)

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

Strong 2 Solid coverage with minor gaps
Virix LabsBrowser AutomationCloud BrowserAI AgentsA2A2 APIs65.7Super.aiCompanyAi Enterprise SoftwareIntelligent Document ProcessingDocument Processing1 API58.0
Developing 3 Usable, with meaningful gaps to close
CrewAI CloudAI AgentsAI Agent PlatformAgent OrchestrationMulti-Agent Systems1 API49.7RentahumanCompanyMarketplaceAI Agents1 API46.8Verified Digital Agents (VDA)CompanyAI AgentsAI GovernanceCompliance9 APIs46.1
Thin 6 Limited public surface area
SapienCompanyArtificial IntelligenceData QualityData Labeling2 APIs39.2UnbabelTranslationLocalizationLanguage OperationsLangOps1 API37.1TolokaData LabelingCrowdsourcingTraining Data1 API32.9Amazon Augmented AIAmazon Augmented AIMachine LearningAI Review1 API31.2AG2AI AgentsMulti-AgentAgentOSAutoGen3 APIs29.4Figure EightCompanyArtificial IntelligenceMachine LearningData Labeling1 API28.8
Emerging 2 Early or largely undocumented
RelayCompanyAI AgentsA2A1 API13.7MelodyArcCompanyArtificial IntelligenceWorkflow AutomationOrchestration11.9
Minimal 1 Almost no public developer surface
SylloTipsCompanyArtificial IntelligenceKnowledge ManagementEnterprise AI10.9

APIs with this tag (6)

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
Dify Human Input APIEndpoints for resuming paused workflows that require human input. 2 operation(s) from the Dify Service API.75.8
Strong 3 Solid coverage with minor gaps
Human Browser A2A AgentAgent2Agent protocol surface: an agent card (protocolVersion 0.3.0, JSONRPC, version 5.1.0) served byte-ide...65.7Affinda Annotations APIManually create, update, and delete annotations on uploaded documents. Annotations are the field-level extr...60.4Affinda Validation Results APITrack the status and findings of validation rules attached to parsed documents. Validation results record p...60.4
Thin 1 Limited public surface area
Workspace Shared APIAccess to shared Workspace resources — assignments, draft and submitted answers, users, user groups and Wor...27.5
Emerging 1 Early or largely undocumented
Relay A2A AgentA2A JSON-RPC 2.0 endpoint for the Relay agent, deployed as a Val Town val. GET on the root returns a plain-...13.7

Companies reaching this through an API (3)

These companies publish an API, specification or operation carrying “Human-in-the-Loop” 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.

Affinda Dify WorkFusion

Score breakdown

Frequency
36.1
log-scaled weighted occurrences
Breadth
0.4
spread across providers
Quality lift
43.7
mean composite of providers using it
Cohesion
1.0
strength of nearest seed neighbor

Related tags

A2A 5 co-occurrences AI Agents 9 co-occurrences MCP 6 co-occurrences Artificial Intelligence 9 co-occurrences Company 8 co-occurrences

Where this tag comes from

Api tag7
Provider tag14

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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

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This tag 
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All tags 
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As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/human-in-the-loop"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/human-in-the-loop/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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