Amazon Mechanical Turk
Amazon Mechanical Turk (MTurk) is a crowdsourcing marketplace that makes it easier for individuals and businesses to coordinate the use of human intelligence to perform tasks that computers are currently unable to do well. It enables access to a global, on-demand, 24x7 workforce for data labeling, content moderation, surveys, transcription, and machine learning training data collection.
Amazon Mechanical Turk publishes 1 API contract indexed on the APIs.io network: Amazon Mechanical Turk API. Tagged areas include Crowdsourcing, Human Intelligence, Labor, Machine Learning, and Task.
The Amazon Mechanical Turk catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.
Amazon Mechanical Turk’s developer surface includes pricing, authentication, developer portal, documentation, support, engineering blog, signup flow, and 15 more developer resources.
Kin Score
Kin Score
How this is scored →scored 2026-10-17 · rubric v0.24.0
APIs 1
Individual APIs this provider publishes, each with its own machine-readable definition.
Amazon Mechanical Turk Amazon Mechanical Turk API
The Amazon Mechanical Turk API from Amazon Mechanical Turk — 39 operation(s) for amazon mechanical turk.
Postman Collections 39
Ready-to-run Postman collections for exercising this provider's APIs.
Scroll for all 39
Open Collections 37
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONScroll for all 37
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Amazon Mechanical Turk Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Features 7
Notable capabilities this provider offers.
Human Intelligence Tasks (HITs)
Create and manage discrete units of work distributed to the global MTurk worker population.
Qualification Types
Define custom qualification tests and requirements to target the right worker pool for each task type.
Assignment Review and Approval
Review submitted assignments and approve or reject work with feedback to workers.
Worker Bonuses
Award bonus payments to workers for exceptional task completion beyond the base HIT reward.
Worker Notifications
Send targeted messages to specific workers to communicate task updates or instructions.
Worker Blocks
Prevent specific workers from accessing your HITs when quality does not meet requirements.
Sandbox Environment
Test HIT templates and requester workflows using the MTurk sandbox before going to production.
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Semantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Spectral Rules 2
Spectral governance rulesets for linting and validating these APIs.
Amazon Mechanical Turk API Rules
SPECTRALJSON Schema 144
Standalone JSON Schema definitions for this provider's data models.
AcceptQualificationRequestRequest
JSON SCHEMAAcceptQualificationRequestResponse
JSON SCHEMAApproveAssignmentRequest
JSON SCHEMAApproveAssignmentResponse
JSON SCHEMAAssignmentList
JSON SCHEMAAssignment
JSON SCHEMAAssignmentStatusList
JSON SCHEMAAssignmentStatus
JSON SCHEMAAssociateQualificationWithWorkerRequest
JSON SCHEMAAssociateQualificationWithWorkerResponse
JSON SCHEMABonusPaymentList
JSON SCHEMABonusPayment
JSON SCHEMABoolean
JSON SCHEMAComparator
JSON SCHEMACountryParameters
JSON SCHEMACreateAdditionalAssignmentsForHITRequest
JSON SCHEMACreateAdditionalAssignmentsForHITResponse
JSON SCHEMACreateHITRequest
JSON SCHEMACreateHITResponse
JSON SCHEMACreateHITTypeRequest
JSON SCHEMACreateHITTypeResponse
JSON SCHEMACreateHITWithHITTypeRequest
JSON SCHEMACreateHITWithHITTypeResponse
JSON SCHEMACreateQualificationTypeRequest
JSON SCHEMACreateQualificationTypeResponse
JSON SCHEMACreateWorkerBlockRequest
JSON SCHEMACreateWorkerBlockResponse
JSON SCHEMACurrencyAmount
JSON SCHEMACustomerIdList
JSON SCHEMACustomerId
JSON SCHEMADeleteHITRequest
JSON SCHEMADeleteHITResponse
JSON SCHEMADeleteQualificationTypeRequest
JSON SCHEMADeleteQualificationTypeResponse
JSON SCHEMADeleteWorkerBlockRequest
JSON SCHEMADeleteWorkerBlockResponse
JSON SCHEMADisassociateQualificationFromWorkerRequest
JSON SCHEMADisassociateQualificationFromWorkerResponse
JSON SCHEMAEntityId
JSON SCHEMAEventTypeList
JSON SCHEMAEventType
JSON SCHEMAGetAccountBalanceRequest
JSON SCHEMAGetAccountBalanceResponse
JSON SCHEMAGetAssignmentRequest
JSON SCHEMAGetAssignmentResponse
JSON SCHEMAGetFileUploadURLRequest
JSON SCHEMAGetFileUploadURLResponse
JSON SCHEMAGetHITRequest
JSON SCHEMAGetHITResponse
JSON SCHEMAGetQualificationScoreRequest
JSON SCHEMAGetQualificationScoreResponse
JSON SCHEMAGetQualificationTypeRequest
JSON SCHEMAGetQualificationTypeResponse
JSON SCHEMAHITAccessActions
JSON SCHEMAHITLayoutParameterList
JSON SCHEMAHITLayoutParameter
JSON SCHEMAHITList
JSON SCHEMAHITReviewStatus
JSON SCHEMAHIT
JSON SCHEMAHITStatus
JSON SCHEMAIdempotencyToken
JSON SCHEMAIntegerList
JSON SCHEMAInteger
JSON SCHEMAListAssignmentsForHITRequest
JSON SCHEMAListAssignmentsForHITResponse
JSON SCHEMAListBonusPaymentsRequest
JSON SCHEMAListBonusPaymentsResponse
JSON SCHEMAListHITsForQualificationTypeRequest
JSON SCHEMAListHITsForQualificationTypeResponse
JSON SCHEMAListHITsRequest
JSON SCHEMAListHITsResponse
JSON SCHEMAListQualificationRequestsRequest
JSON SCHEMAListQualificationRequestsResponse
JSON SCHEMAListQualificationTypesRequest
JSON SCHEMAListQualificationTypesResponse
JSON SCHEMAListReviewPolicyResultsForHITRequest
JSON SCHEMAListReviewPolicyResultsForHITResponse
JSON SCHEMAListReviewableHITsRequest
JSON SCHEMAListReviewableHITsResponse
JSON SCHEMAListWorkerBlocksRequest
JSON SCHEMAListWorkerBlocksResponse
JSON SCHEMAListWorkersWithQualificationTypeRequest
JSON SCHEMAListWorkersWithQualificationTypeResponse
JSON SCHEMALocaleList
JSON SCHEMALocale
JSON SCHEMALong
JSON SCHEMANotificationSpecification
JSON SCHEMANotificationTransport
JSON SCHEMANotifyWorkersFailureCode
JSON SCHEMANotifyWorkersFailureStatusList
JSON SCHEMANotifyWorkersFailureStatus
JSON SCHEMANotifyWorkersRequest
JSON SCHEMANotifyWorkersResponse
JSON SCHEMAPaginationToken
JSON SCHEMAParameterMapEntryList
JSON SCHEMAParameterMapEntry
JSON SCHEMAPolicyParameterList
JSON SCHEMAPolicyParameter
JSON SCHEMAQualificationList
JSON SCHEMAQualificationRequestList
JSON SCHEMAQualificationRequest
JSON SCHEMAQualificationRequirementList
JSON SCHEMAQualificationRequirement
JSON SCHEMAQualification
JSON SCHEMAQualificationStatus
JSON SCHEMAQualificationTypeList
JSON SCHEMAQualificationType
JSON SCHEMAQualificationTypeStatus
JSON SCHEMARejectAssignmentRequest
JSON SCHEMARejectAssignmentResponse
JSON SCHEMARejectQualificationRequestRequest
JSON SCHEMARejectQualificationRequestResponse
JSON SCHEMARequestError
JSON SCHEMAResultSize
JSON SCHEMAReviewActionDetailList
JSON SCHEMAReviewActionDetail
JSON SCHEMAReviewActionStatus
JSON SCHEMAReviewPolicyLevelList
JSON SCHEMAReviewPolicyLevel
JSON SCHEMAReviewPolicy
JSON SCHEMAReviewReport
JSON SCHEMAReviewResultDetailList
JSON SCHEMAReviewResultDetail
JSON SCHEMAReviewableHITStatus
JSON SCHEMASendBonusRequest
JSON SCHEMASendBonusResponse
JSON SCHEMASendTestEventNotificationRequest
JSON SCHEMASendTestEventNotificationResponse
JSON SCHEMAServiceFault
JSON SCHEMAStringList
JSON SCHEMAString
JSON SCHEMATimestamp
JSON SCHEMAUpdateExpirationForHITRequest
JSON SCHEMAUpdateExpirationForHITResponse
JSON SCHEMAUpdateHITReviewStatusRequest
JSON SCHEMAUpdateHITReviewStatusResponse
JSON SCHEMAUpdateHITTypeOfHITRequest
JSON SCHEMAUpdateHITTypeOfHITResponse
JSON SCHEMAUpdateNotificationSettingsRequest
JSON SCHEMAUpdateNotificationSettingsResponse
JSON SCHEMAUpdateQualificationTypeRequest
JSON SCHEMAUpdateQualificationTypeResponse
JSON SCHEMAWorkerBlockList
JSON SCHEMAWorkerBlock
JSON SCHEMAScroll for all 144
JSON Structure 144
JSON Structure definitions describing this provider's data shapes.
Amazon Mechanical Turk Assignment List Structure
JSON STRUCTUREAmazon Mechanical Turk Assignment Status List Structure
JSON STRUCTUREAmazon Mechanical Turk Assignment Status Structure
JSON STRUCTUREAmazon Mechanical Turk Assignment Structure
JSON STRUCTUREAmazon Mechanical Turk Bonus Payment List Structure
JSON STRUCTUREAmazon Mechanical Turk Bonus Payment Structure
JSON STRUCTUREAmazon Mechanical Turk Boolean Structure
JSON STRUCTUREAmazon Mechanical Turk Comparator Structure
JSON STRUCTUREAmazon Mechanical Turk Country Parameters Structure
JSON STRUCTUREAmazon Mechanical Turk Create Hit Request Structure
JSON STRUCTUREAmazon Mechanical Turk Create Hit Response Structure
JSON STRUCTUREAmazon Mechanical Turk Create Hit Type Request Structure
JSON STRUCTUREAmazon Mechanical Turk Currency Amount Structure
JSON STRUCTUREAmazon Mechanical Turk Customer Id List Structure
JSON STRUCTUREAmazon Mechanical Turk Customer Id Structure
JSON STRUCTUREAmazon Mechanical Turk Delete Hit Request Structure
JSON STRUCTUREAmazon Mechanical Turk Delete Hit Response Structure
JSON STRUCTUREAmazon Mechanical Turk Entity Id Structure
JSON STRUCTUREAmazon Mechanical Turk Event Type List Structure
JSON STRUCTUREAmazon Mechanical Turk Event Type Structure
JSON STRUCTUREAmazon Mechanical Turk Get Assignment Request Structure
JSON STRUCTUREAmazon Mechanical Turk Get Assignment Response Structure
JSON STRUCTUREAmazon Mechanical Turk Get Hit Request Structure
JSON STRUCTUREAmazon Mechanical Turk Get Hit Response Structure
JSON STRUCTUREAmazon Mechanical Turk Hit Access Actions Structure
JSON STRUCTUREAmazon Mechanical Turk Hit Layout Parameter Structure
JSON STRUCTUREAmazon Mechanical Turk Hit List Structure
JSON STRUCTUREAmazon Mechanical Turk Hit Review Status Structure
JSON STRUCTUREAmazon Mechanical Turk Hit Status Structure
JSON STRUCTUREAmazon Mechanical Turk Hit Structure
JSON STRUCTUREAmazon Mechanical Turk Idempotency Token Structure
JSON STRUCTUREAmazon Mechanical Turk Integer List Structure
JSON STRUCTUREAmazon Mechanical Turk Integer Structure
JSON STRUCTUREAmazon Mechanical Turk List Hi Ts Request Structure
JSON STRUCTUREAmazon Mechanical Turk List Hi Ts Response Structure
JSON STRUCTUREAmazon Mechanical Turk Locale List Structure
JSON STRUCTUREAmazon Mechanical Turk Locale Structure
JSON STRUCTUREAmazon Mechanical Turk Long Structure
JSON STRUCTUREAmazon Mechanical Turk Notification Transport Structure
JSON STRUCTUREAmazon Mechanical Turk Notify Workers Request Structure
JSON STRUCTUREAmazon Mechanical Turk Notify Workers Response Structure
JSON STRUCTUREAmazon Mechanical Turk Pagination Token Structure
JSON STRUCTUREAmazon Mechanical Turk Parameter Map Entry Structure
JSON STRUCTUREAmazon Mechanical Turk Policy Parameter List Structure
JSON STRUCTUREAmazon Mechanical Turk Policy Parameter Structure
JSON STRUCTUREAmazon Mechanical Turk Qualification List Structure
JSON STRUCTUREAmazon Mechanical Turk Qualification Request Structure
JSON STRUCTUREAmazon Mechanical Turk Qualification Status Structure
JSON STRUCTUREAmazon Mechanical Turk Qualification Structure
JSON STRUCTUREAmazon Mechanical Turk Qualification Type List Structure
JSON STRUCTUREAmazon Mechanical Turk Qualification Type Structure
JSON STRUCTUREAmazon Mechanical Turk Request Error Structure
JSON STRUCTUREAmazon Mechanical Turk Result Size Structure
JSON STRUCTUREAmazon Mechanical Turk Review Action Detail Structure
JSON STRUCTUREAmazon Mechanical Turk Review Action Status Structure
JSON STRUCTUREAmazon Mechanical Turk Review Policy Level Structure
JSON STRUCTUREAmazon Mechanical Turk Review Policy Structure
JSON STRUCTUREAmazon Mechanical Turk Review Report Structure
JSON STRUCTUREAmazon Mechanical Turk Review Result Detail Structure
JSON STRUCTUREAmazon Mechanical Turk Reviewable Hit Status Structure
JSON STRUCTUREAmazon Mechanical Turk Send Bonus Request Structure
JSON STRUCTUREAmazon Mechanical Turk Send Bonus Response Structure
JSON STRUCTUREAmazon Mechanical Turk Service Fault Structure
JSON STRUCTUREAmazon Mechanical Turk String List Structure
JSON STRUCTUREAmazon Mechanical Turk String Structure
JSON STRUCTUREAmazon Mechanical Turk Timestamp Structure
JSON STRUCTUREAmazon Mechanical Turk Worker Block List Structure
JSON STRUCTUREAmazon Mechanical Turk Worker Block Structure
JSON STRUCTUREScroll for all 144
Examples 144
Example request and response payloads for these APIs.
Scroll for all 144
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Use Cases 6
What developers build with this provider.
Machine Learning Data Labeling
Label images, text, audio, and video to create training datasets for machine learning models.
Content Moderation
Review and moderate user-generated content for inappropriate material at scale.
Transcription Services
Transcribe audio and video recordings using human workers for high accuracy.
Survey and Research Data Collection
Conduct surveys and collect research data from a diverse global workforce.
Data Validation and Quality Assurance
Validate and verify structured data for accuracy using human review.
Sentiment Analysis Training Data
Generate labeled sentiment data for training NLP and sentiment analysis models.
Integrations 5
Pre-built integrations with other platforms and tools.
Amazon SageMaker Ground Truth
Use MTurk workers directly within SageMaker Ground Truth for ML data labeling jobs.
AWS Lambda
Trigger Lambda functions on HIT completion events for automated downstream processing.
Amazon S3
Store HIT input data and collect worker output files in S3 buckets.
Amazon CloudWatch
Monitor MTurk task completion rates and worker performance metrics.
AWS IAM
Control requester access to the MTurk API through IAM policies and roles.
Resources
Get Started 3
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 2
Pagination, idempotency, versioning, errors, and events
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 5
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Source (apis.yml)
Work with this as data
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