Label Studio
Label Studio is the most flexible open-source data labeling platform from HumanSignal, used to fine-tune LLMs, prepare training data, and validate AI models. The Label Studio REST API exposes projects, tasks, annotations, predictions, storage, webhooks, prompts, and review workflows.
Label Studio publishes 74 APIs on the APIs.io network, including Subpackage Actions API, Subpackage Activity Logs API, Subpackage Annotation History API, and 71 more. Tagged areas include Artificial Intelligence, Annotation, Data Labeling, LLM, and Machine Learning.
Label Studio’s developer surface includes authentication, documentation, engineering blog, and 15 more developer resources.
What this lets a business do 4
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
Kin Score
Standards implemented 1
Interfaces this provider implements that became standards by being copied rather than ratified. Each is profiled by the API Commons, and the evidence column says how the claim was established — not that it was made.
APIs 74
Individual APIs this provider publishes, each with its own machine-readable definition.
Label Studio Subpackage Actions API
The subpackage_actions API from Label Studio — 1 operation(s) for subpackage_actions.
Label Studio Subpackage Activity Logs API
The subpackage_activityLogs API from Label Studio — 1 operation(s) for subpackage_activitylogs.
Label Studio Subpackage Annotation History API
The subpackage_annotationHistory API from Label Studio — 3 operation(s) for subpackage_annotationhistory.
Label Studio Subpackage Annotation Reviews API
The subpackage_annotationReviews API from Label Studio — 2 operation(s) for subpackage_annotationreviews.
Label Studio Subpackage Annotations API
The subpackage_annotations API from Label Studio — 4 operation(s) for subpackage_annotations.
Label Studio Subpackage Billing API
The subpackage_billing API from Label Studio — 1 operation(s) for subpackage_billing.
Label Studio Subpackage Comments API
The subpackage_comments API from Label Studio — 3 operation(s) for subpackage_comments.
Label Studio Subpackage Dimensions API
The subpackage_dimensions API from Label Studio — 5 operation(s) for subpackage_dimensions.
Label Studio Subpackage Export Storage API
The subpackage_exportStorage API from Label Studio — 1 operation(s) for subpackage_exportstorage.
Label Studio Subpackage Export Storage.subpackage Export Storage/azure API
The subpackage_exportStorage.subpackage_exportStorage/azure API from Label Studio — 4 operation(s) for subpackage_exportstorage.subpackage_exportstorage/azure.
Label Studio Subpackage Export Storage.subpackage Export Storage/azure Spi API
The subpackage_exportStorage.subpackage_exportStorage/azureSpi API from Label Studio — 4 operation(s) for subpackage_exportstorage.subpackage_exportstorage/azurespi.
Label Studio Subpackage Export Storage.subpackage Export Storage/databricks API
The subpackage_exportStorage.subpackage_exportStorage/databricks API from Label Studio — 4 operation(s) for subpackage_exportstorage.subpackage_exportstorage/databricks.
Label Studio Subpackage Export Storage.subpackage Export Storage/gcs API
The subpackage_exportStorage.subpackage_exportStorage/gcs API from Label Studio — 4 operation(s) for subpackage_exportstorage.subpackage_exportstorage/gcs.
Label Studio Subpackage Export Storage.subpackage Export Storage/gcs Sa API
The subpackage_exportStorage.subpackage_exportStorage/gcsSa API from Label Studio — 4 operation(s) for subpackage_exportstorage.subpackage_exportstorage/gcssa.
Label Studio Subpackage Export Storage.subpackage Export Storage/gcswif API
The subpackage_exportStorage.subpackage_exportStorage/gcswif API from Label Studio — 4 operation(s) for subpackage_exportstorage.subpackage_exportstorage/gcswif.
Label Studio Subpackage Export Storage.subpackage Export Storage/local API
The subpackage_exportStorage.subpackage_exportStorage/local API from Label Studio — 4 operation(s) for subpackage_exportstorage.subpackage_exportstorage/local.
Label Studio Subpackage Export Storage.subpackage Export Storage/redis API
The subpackage_exportStorage.subpackage_exportStorage/redis API from Label Studio — 4 operation(s) for subpackage_exportstorage.subpackage_exportstorage/redis.
Label Studio Subpackage Export Storage.subpackage Export Storage/s3 API
The subpackage_exportStorage.subpackage_exportStorage/s3 API from Label Studio — 4 operation(s) for subpackage_exportstorage.subpackage_exportstorage/s3.
Label Studio Subpackage Export Storage.subpackage Export Storage/s3 S API
The subpackage_exportStorage.subpackage_exportStorage/s3S API from Label Studio — 4 operation(s) for subpackage_exportstorage.subpackage_exportstorage/s3s.
Label Studio Subpackage Files API
The subpackage_files API from Label Studio — 3 operation(s) for subpackage_files.
Label Studio Subpackage Import Storage API
The subpackage_importStorage API from Label Studio — 1 operation(s) for subpackage_importstorage.
Label Studio Subpackage Import Storage.subpackage Import Storage/azure API
The subpackage_importStorage.subpackage_importStorage/azure API from Label Studio — 4 operation(s) for subpackage_importstorage.subpackage_importstorage/azure.
Label Studio Subpackage Import Storage.subpackage Import Storage/azure Spi API
The subpackage_importStorage.subpackage_importStorage/azureSpi API from Label Studio — 4 operation(s) for subpackage_importstorage.subpackage_importstorage/azurespi.
Label Studio Subpackage Import Storage.subpackage Import Storage/databricks API
The subpackage_importStorage.subpackage_importStorage/databricks API from Label Studio — 4 operation(s) for subpackage_importstorage.subpackage_importstorage/databricks.
Label Studio Subpackage Import Storage.subpackage Import Storage/gcs API
The subpackage_importStorage.subpackage_importStorage/gcs API from Label Studio — 4 operation(s) for subpackage_importstorage.subpackage_importstorage/gcs.
Label Studio Subpackage Import Storage.subpackage Import Storage/gcs Sa API
The subpackage_importStorage.subpackage_importStorage/gcsSa API from Label Studio — 4 operation(s) for subpackage_importstorage.subpackage_importstorage/gcssa.
Label Studio Subpackage Import Storage.subpackage Import Storage/gcswif API
The subpackage_importStorage.subpackage_importStorage/gcswif API from Label Studio — 4 operation(s) for subpackage_importstorage.subpackage_importstorage/gcswif.
Label Studio Subpackage Import Storage.subpackage Import Storage/local API
The subpackage_importStorage.subpackage_importStorage/local API from Label Studio — 4 operation(s) for subpackage_importstorage.subpackage_importstorage/local.
Label Studio Subpackage Import Storage.subpackage Import Storage/redis API
The subpackage_importStorage.subpackage_importStorage/redis API from Label Studio — 4 operation(s) for subpackage_importstorage.subpackage_importstorage/redis.
Label Studio Subpackage Import Storage.subpackage Import Storage/s3 API
The subpackage_importStorage.subpackage_importStorage/s3 API from Label Studio — 4 operation(s) for subpackage_importstorage.subpackage_importstorage/s3.
Label Studio Subpackage Import Storage.subpackage Import Storage/s3 S API
The subpackage_importStorage.subpackage_importStorage/s3S API from Label Studio — 4 operation(s) for subpackage_importstorage.subpackage_importstorage/s3s.
Label Studio Subpackage JWT Settings API
The subpackage_jwtSettings API from Label Studio — 1 operation(s) for subpackage_jwtsettings.
Label Studio Subpackage Ml API
The subpackage_ml API from Label Studio — 6 operation(s) for subpackage_ml.
Label Studio Subpackage Model Providers API
The subpackage_modelProviders API from Label Studio — 3 operation(s) for subpackage_modelproviders.
Label Studio Subpackage Organizations API
The subpackage_organizations API from Label Studio — 4 operation(s) for subpackage_organizations.
Label Studio Subpackage Organizations.subpackage Organizations/invites API
The subpackage_organizations.subpackage_organizations/invites API from Label Studio — 3 operation(s) for subpackage_organizations.subpackage_organizations/invites.
Label Studio Subpackage Organizations.subpackage Organizations/members API
The subpackage_organizations.subpackage_organizations/members API from Label Studio — 2 operation(s) for subpackage_organizations.subpackage_organizations/members.
Label Studio Subpackage Organizations.subpackage Organizations/member Tags API
The subpackage_organizations.subpackage_organizations/memberTags API from Label Studio — 5 operation(s) for subpackage_organizations.subpackage_organizations/membertags.
Label Studio subpackage_organizations.subpackage_organizations/memberTags.subpackage_organizations/memberTags/bulk API
The subpackage_organizations.subpackage_organizations/memberTags.subpackage_organizations/memberTags/bulk API from Label Studio — 1 operation(s) for subpackage_organizations.sub...
Label Studio Subpackage Organizations.subpackage Organizations/permissions API
The subpackage_organizations.subpackage_organizations/permissions API from Label Studio — 3 operation(s) for subpackage_organizations.subpackage_organizations/permissions.
Label Studio Subpackage Predictions API
The subpackage_predictions API from Label Studio — 2 operation(s) for subpackage_predictions.
Label Studio Subpackage Projects API
The subpackage_projects API from Label Studio — 8 operation(s) for subpackage_projects.
Label Studio Subpackage Projects.subpackage Projects/assignments API
The subpackage_projects.subpackage_projects/assignments API from Label Studio — 2 operation(s) for subpackage_projects.subpackage_projects/assignments.
Label Studio Subpackage Projects.subpackage Projects/exports API
The subpackage_projects.subpackage_projects/exports API from Label Studio — 6 operation(s) for subpackage_projects.subpackage_projects/exports.
Label Studio Subpackage Projects.subpackage Projects/members API
The subpackage_projects.subpackage_projects/members API from Label Studio — 1 operation(s) for subpackage_projects.subpackage_projects/members.
Label Studio subpackage_projects.subpackage_projects/members.subpackage_projects/members/bulk API
The subpackage_projects.subpackage_projects/members.subpackage_projects/members/bulk API from Label Studio — 1 operation(s) for subpackage_projects.subpackage_projects/members.s...
Label Studio subpackage_projects.subpackage_projects/members.subpackage_projects/members/paginated API
The subpackage_projects.subpackage_projects/members.subpackage_projects/members/paginated API from Label Studio — 1 operation(s) for subpackage_projects.subpackage_projects/memb...
Label Studio Subpackage Projects.subpackage Projects/metrics API
The subpackage_projects.subpackage_projects/metrics API from Label Studio — 1 operation(s) for subpackage_projects.subpackage_projects/metrics.
Label Studio subpackage_projects.subpackage_projects/metrics.subpackage_projects/metrics/custom API
The subpackage_projects.subpackage_projects/metrics.subpackage_projects/metrics/custom API from Label Studio — 6 operation(s) for subpackage_projects.subpackage_projects/metrics...
Label Studio Subpackage Projects.subpackage Projects/pauses API
The subpackage_projects.subpackage_projects/pauses API from Label Studio — 2 operation(s) for subpackage_projects.subpackage_projects/pauses.
Label Studio Subpackage Projects.subpackage Projects/review Routing Rules API
The subpackage_projects.subpackage_projects/reviewRoutingRules API from Label Studio — 2 operation(s) for subpackage_projects.subpackage_projects/reviewroutingrules.
Label Studio Subpackage Projects.subpackage Projects/roles API
The subpackage_projects.subpackage_projects/roles API from Label Studio — 3 operation(s) for subpackage_projects.subpackage_projects/roles.
Label Studio Subpackage Projects.subpackage Projects/stats API
The subpackage_projects.subpackage_projects/stats API from Label Studio — 20 operation(s) for subpackage_projects.subpackage_projects/stats.
Label Studio Subpackage Project Templates API
The subpackage_projectTemplates API from Label Studio — 3 operation(s) for subpackage_projecttemplates.
Label Studio Subpackage Prompts API
The subpackage_prompts API from Label Studio — 7 operation(s) for subpackage_prompts.
Label Studio Subpackage Prompts.subpackage Prompts/indicators API
The subpackage_prompts.subpackage_prompts/indicators API from Label Studio — 2 operation(s) for subpackage_prompts.subpackage_prompts/indicators.
Label Studio Subpackage Prompts.subpackage Prompts/runs API
The subpackage_prompts.subpackage_prompts/runs API from Label Studio — 2 operation(s) for subpackage_prompts.subpackage_prompts/runs.
Label Studio Subpackage Prompts.subpackage Prompts/versions API
The subpackage_prompts.subpackage_prompts/versions API from Label Studio — 5 operation(s) for subpackage_prompts.subpackage_prompts/versions.
Label Studio Subpackage Session Policy API
The subpackage_sessionPolicy API from Label Studio — 1 operation(s) for subpackage_sessionpolicy.
Label Studio Subpackage Sso.subpackage Sso/saml API
The subpackage_sso.subpackage_sso/saml API from Label Studio — 2 operation(s) for subpackage_sso.subpackage_sso/saml.
Label Studio Subpackage Sso.subpackage Sso/scim API
The subpackage_sso.subpackage_sso/scim API from Label Studio — 1 operation(s) for subpackage_sso.subpackage_sso/scim.
Label Studio Subpackage States API
The subpackage_states API from Label Studio — 5 operation(s) for subpackage_states.
Label Studio Subpackage Tasks API
The subpackage_tasks API from Label Studio — 5 operation(s) for subpackage_tasks.
Label Studio Subpackage Tasks.subpackage Tasks/agreement Matrix API
The subpackage_tasks.subpackage_tasks/agreementMatrix API from Label Studio — 1 operation(s) for subpackage_tasks.subpackage_tasks/agreementmatrix.
Label Studio Subpackage Tokens API
The subpackage_tokens API from Label Studio — 4 operation(s) for subpackage_tokens.
Label Studio Subpackage Users API
The subpackage_users API from Label Studio — 7 operation(s) for subpackage_users.
Label Studio Subpackage Versions API
The subpackage_versions API from Label Studio — 1 operation(s) for subpackage_versions.
Label Studio Subpackage Views API
The subpackage_views API from Label Studio — 4 operation(s) for subpackage_views.
Label Studio Subpackage Webhooks API
The subpackage_webhooks API from Label Studio — 3 operation(s) for subpackage_webhooks.
Label Studio Subpackage Workspaces API
The subpackage_workspaces API from Label Studio — 2 operation(s) for subpackage_workspaces.
Label Studio Subpackage Workspaces.subpackage Workspaces/members API
The subpackage_workspaces.subpackage_workspaces/members API from Label Studio — 1 operation(s) for subpackage_workspaces.subpackage_workspaces/members.
Label Studio subpackage_workspaces.subpackage_workspaces/members.subpackage_workspaces/members/bulk API
The subpackage_workspaces.subpackage_workspaces/members.subpackage_workspaces/members/bulk API from Label Studio — 1 operation(s) for subpackage_workspaces.subpackage_workspaces...
Label Studio subpackage_workspaces.subpackage_workspaces/members.subpackage_workspaces/members/paginated API
The subpackage_workspaces.subpackage_workspaces/members.subpackage_workspaces/members/paginated API from Label Studio — 1 operation(s) for subpackage_workspaces.subpackage_works...
Label Studio Subpackage Workspaces.subpackage Workspaces/projects API
The subpackage_workspaces.subpackage_workspaces/projects API from Label Studio — 1 operation(s) for subpackage_workspaces.subpackage_workspaces/projects.
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Open Collections 74
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONAPI Reference subpackage_actions API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_activityLogs API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_annotations API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_billing API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_comments API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_dimensions API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_exportStorage.subpackage_exportStorage/azure API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_exportStorage.subpackage_exportStorage/azureSpi API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_exportStorage.subpackage_exportStorage/databricks API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_exportStorage.subpackage_exportStorage/gcs API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_exportStorage.subpackage_exportStorage/gcsSa API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_exportStorage.subpackage_exportStorage/gcswif API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_exportStorage.subpackage_exportStorage/local API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_exportStorage.subpackage_exportStorage/redis API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_exportStorage.subpackage_exportStorage/s3 API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_exportStorage.subpackage_exportStorage/s3S API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_files API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_importStorage.subpackage_importStorage/azure API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_importStorage.subpackage_importStorage/azureSpi API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_importStorage.subpackage_importStorage/databricks API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_importStorage.subpackage_importStorage/gcs API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_importStorage.subpackage_importStorage/gcsSa API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_importStorage.subpackage_importStorage/gcswif API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_importStorage.subpackage_importStorage/local API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_importStorage.subpackage_importStorage/redis API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_importStorage.subpackage_importStorage/s3 API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_importStorage.subpackage_importStorage/s3S API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_jwtSettings API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_ml API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_organizations.subpackage_organizations/invites API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_organizations.subpackage_organizations/members API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_organizations.subpackage_organizations/memberTags API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_organizations.subpackage_organizations/permissions API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_predictions API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_projects API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_projects.subpackage_projects/assignments API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_projects.subpackage_projects/members.subpackage_projects/members/bulk API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_projects.subpackage_projects/members.subpackage_projects/members/paginated API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_projects.subpackage_projects/metrics.subpackage_projects/metrics/custom API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_prompts API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_prompts.subpackage_prompts/indicators API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_states API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_tasks API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_tasks.subpackage_tasks/agreementMatrix API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_tokens API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_users API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_versions API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_views API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_webhooks API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_workspaces API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_workspaces.subpackage_workspaces/members API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_workspaces.subpackage_workspaces/members.subpackage_workspaces/members/bulk API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_workspaces.subpackage_workspaces/members.subpackage_workspaces/members/paginated API
OPEN COLLECTIONAPI Reference subpackage_actions subpackage_workspaces.subpackage_workspaces/projects API
OPEN COLLECTIONAPI Reference
OPEN COLLECTIONScroll for all 74
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Label Studio Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Label Studio Finops
FINOPSSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 1
Properties that don't map to a standard resource type
Source (apis.yml)
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.