niche · 0.0 marketcapability domainschema

Human-in-the-Loop

Score 17.6 / 100 14 providers +4 via APIs 8 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 AgentsA2A3 APIs61.7Super.aiCompanyAi Enterprise SoftwareIntelligent Document ProcessingDocument Processing1 API57.0
Developing 4 Usable, with meaningful gaps to close
CrewAI CloudAI AgentsAI Agent PlatformAgent OrchestrationMulti-Agent Systems1 API51.1RentahumanCompanyMarketplaceAI Agents1 API48.9Verified Digital Agents (VDA)CompanyAI AgentsAI GovernanceCompliance6 APIs44.4SapienCompanyArtificial IntelligenceData QualityData Labeling1 API39.4
Thin 5 Limited public surface area
UnbabelTranslationLocalizationLanguage OperationsLangOps1 API39.0TolokaData LabelingCrowdsourcingTraining Data1 API35.1AG2AI AgentsMulti-AgentAgentOSAutoGen3 APIs31.8Amazon Augmented AIAmazon Augmented AIMachine-LearningAI Review1 API30.4Figure EightCompanyArtificial IntelligenceMachine-LearningData Labeling1 API30.4
Emerging 3 Early or largely undocumented
RelayCompanyAI AgentsA2A1 API14.2MelodyArcCompanyArtificial IntelligenceWorkflow-AutomationOrchestration12.6SylloTipsCompanyArtificial IntelligenceKnowledge-ManagementEnterprise AI12.3

APIs with this tag (8)

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.74.4
Strong 4 Solid coverage with minor gaps
Affinda Annotations APIManually create, update, and delete annotations on uploaded documents. Annotations are the field-level extr...63.7Affinda Validation Results APITrack the status and findings of validation rules attached to parsed documents. Validation results record p...63.7Human Browser A2A AgentAgent2Agent protocol surface: an agent card (protocolVersion 0.3.0, JSONRPC, version 5.1.0) served byte-ide...61.7HumanMirror Physical Oracle APIBeta (1.0.0-beta) agent-to-human field-verification network: quote and post bounded public-world verificati...60.3
Developing 1 Usable, with meaningful gaps to close
VDA HITL APIHuman decisions on agent actions: register an authority config, raise an escalated decision, read it, recor...44.4
Thin 1 Limited public surface area
Workspace Shared APIAccess to shared Workspace resources — assignments, draft and submitted answers, users, user groups and Wor...28.8
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-...14.2

Companies reaching this through an API (4)

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 HumanMirror WorkFusion

Score breakdown

Frequency
36.3
log-scaled weighted occurrences
Breadth
0.4
spread across providers
Quality lift
41.2
mean composite of providers using it
Cohesion
1.3
strength of nearest seed neighbor

Related tags

AI Agents 10 co-occurrences MCP 7 co-occurrences Artificial Intelligence 9 co-occurrences Company 9 co-occurrences

Where this tag comes from

Api tag8
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 
curl "https://apis.io/api/v1/tags/human-in-the-loop"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
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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