Toloka website screenshot

Toloka

Toloka is a data-labeling and human-data platform that powers human-in-the-loop pipelines for training and evaluating AI. The Toloka API lets requesters programmatically create projects, configure pools of crowdsourced tasks, upload tasks and task suites, collect and review Toloker responses, and track asynchronous operations, with a companion toloka-kit Python SDK.

Toloka publishes 12 APIs on the APIs.io network, including Assignments API, Attachments API, Operations API, and 9 more. Tagged areas include Data Labeling, Crowdsourcing, Human-in-the-Loop, Training Data, and Artificial Intelligence.

Toloka’s developer surface includes authentication, documentation, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
35.1/100 thin ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0
AccessSelf serve
1 APIs
Data LabelingCrowdsourcingHuman-in-the-LoopTraining DataArtificial Intelligence

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0
Composite quality — 35.1/100 · thin
Contract Quality 11.0 / 23
Developer Ergonomics 5.8 / 18
Access Clarity 5.2 / 18
Operational Transparency 4.0 / 12
Contract Governance 0.0 / 11
Discoverability 6.2 / 9
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 20/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/toloka: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 12

Individual APIs this provider publishes, each with its own machine-readable definition.

Toloka Assignments API

Retrieve Toloker responses and accept or reject completed assignments.

Toloka Attachments API

Retrieve files Tolokers attached to their assignments.

Toloka Operations API

Track the status of asynchronous operations.

Toloka Pools API

Create, configure, open, and close pools of tasks for Tolokers.

Toloka Projects API

Create and manage projects that define task interface and instructions.

Toloka Skills API

Create and manage skills assigned to Tolokers.

Toloka Task Suites API

Upload and retrieve task suites (groups of tasks shown together).

Toloka Tasks API

Upload and retrieve individual tasks.

Toloka Training API

Create and manage training pools used to qualify Tolokers.

Toloka User Bonuses API

Issue bonus payments to Tolokers.

Toloka User Restrictions API

Restrict Tolokers from a pool, project, or all projects.

Toloka Webhook Subscriptions API

Subscribe to platform events delivered to your endpoint.

Scroll for all 12

Open Collections 14

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Toloka Assignments API

OPEN COLLECTION

Toloka Assignments Attachments API

OPEN COLLECTION

Toloka Assignments Operations API

OPEN COLLECTION

Toloka Assignments Pools API

OPEN COLLECTION

Toloka Assignments Projects API

OPEN COLLECTION

Toloka Assignments Skills API

OPEN COLLECTION

Toloka Assignments Task Suites API

OPEN COLLECTION

Toloka Assignments Tasks API

OPEN COLLECTION

Toloka Assignments Training API

OPEN COLLECTION

Toloka Assignments User Bonuses API

OPEN COLLECTION

Toloka Assignments User Restrictions API

OPEN COLLECTION

Toloka Assignments Webhook Subscriptions API

OPEN COLLECTION

Toloka API

OPEN COLLECTION

Scroll for all 14

Pricing Plans 1

Published pricing tiers and plan structures.

Toloka Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Toloka Rate Limits

4 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Toloka Finops

FINOPS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Toloka Authentication

apiKey · 1 scheme

SECURITY

Toloka Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Toloka Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Toloka Agentic Access

39 operations · 20 acting · 2 human-in-the-loop

39 operations · 20 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: toloka
url: https://raw.githubusercontent.com/api-evangelist/toloka/refs/heads/main/apis.yml
name: Toloka
kind: company
description: Toloka is a data-labeling and human-data platform that powers human-in-the-loop pipelines for training and evaluating
  AI. The Toloka API lets requesters programmatically create projects, configure pools of crowdsourced tasks, upload tasks
  and task suites, collect and review Toloker responses, and track asynchronous operations, with a companion toloka-kit Python
  SDK.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/toloka.png
tags:
- Data Labeling
- Crowdsourcing
- Human-in-the-Loop
- Training Data
- Artificial Intelligence
tags_raw:
- Data Labeling
- Crowdsourcing
- Human-in-the-Loop
- Training Data
- AI
created: '2026-06-21'
modified: '2026-06-21'
specificationVersion: '0.23'
apis:
- aid: toloka:toloka-assignments-api
  name: Toloka Assignments API
  description: Retrieve Toloker responses and accept or reject completed assignments.
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags:
  - Assignments
  properties:
  - type: OpenAPI
    url: openapi/toloka-assignments-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
- aid: toloka:toloka-attachments-api
  name: Toloka Attachments API
  description: Retrieve files Tolokers attached to their assignments.
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags:
  - Attachments
  properties:
  - type: OpenAPI
    url: openapi/toloka-attachments-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
- aid: toloka:toloka-operations-api
  name: Toloka Operations API
  description: Track the status of asynchronous operations.
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags: []
  tags_raw:
  - Operations
  properties:
  - type: OpenAPI
    url: openapi/toloka-operations-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
- aid: toloka:toloka-pools-api
  name: Toloka Pools API
  description: Create, configure, open, and close pools of tasks for Tolokers.
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags:
  - Pools
  properties:
  - type: OpenAPI
    url: openapi/toloka-pools-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
- aid: toloka:toloka-projects-api
  name: Toloka Projects API
  description: Create and manage projects that define task interface and instructions.
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/toloka-projects-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
- aid: toloka:toloka-skills-api
  name: Toloka Skills API
  description: Create and manage skills assigned to Tolokers.
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags:
  - Skills
  properties:
  - type: OpenAPI
    url: openapi/toloka-skills-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
- aid: toloka:toloka-task-suites-api
  name: Toloka Task Suites API
  description: Upload and retrieve task suites (groups of tasks shown together).
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags:
  - Task Suites
  properties:
  - type: OpenAPI
    url: openapi/toloka-task-suites-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
- aid: toloka:toloka-tasks-api
  name: Toloka Tasks API
  description: Upload and retrieve individual tasks.
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags:
  - Task
  tags_raw:
  - Tasks
  properties:
  - type: OpenAPI
    url: openapi/toloka-tasks-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
- aid: toloka:toloka-training-api
  name: Toloka Training API
  description: Create and manage training pools used to qualify Tolokers.
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags:
  - Training
  properties:
  - type: OpenAPI
    url: openapi/toloka-training-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
- aid: toloka:toloka-user-bonuses-api
  name: Toloka User Bonuses API
  description: Issue bonus payments to Tolokers.
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags:
  - User Bonuses
  properties:
  - type: OpenAPI
    url: openapi/toloka-user-bonuses-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
- aid: toloka:toloka-user-restrictions-api
  name: Toloka User Restrictions API
  description: Restrict Tolokers from a pool, project, or all projects.
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags:
  - User Restrictions
  properties:
  - type: OpenAPI
    url: openapi/toloka-user-restrictions-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
- aid: toloka:toloka-webhook-subscriptions-api
  name: Toloka Webhook Subscriptions API
  description: Subscribe to platform events delivered to your endpoint.
  humanURL: https://toloka.ai/docs/api/api-reference/
  baseURL: https://api.toloka.ai/api/v1
  tags:
  - Webhook Subscriptions
  properties:
  - type: OpenAPI
    url: openapi/toloka-webhook-subscriptions-api-openapi.yml
  - type: Documentation
    url: https://toloka.ai/docs/api/
  - type: APIReference
    url: https://toloka.ai/docs/api/api-reference/
  - type: PostmanCollection
    url: collections/toloka.postman_collection.json
  - type: GitHub
    url: https://github.com/Toloka/toloka-kit
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/upload-tasks
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/get-response
  - type: Documentation
    url: https://toloka.ai/docs/api/concepts/using-webhook-subscriptions
common:
- type: AgenticAccess
  url: agentic-access/toloka-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/toloka-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/toloka-domain-security.yml
- type: Authentication
  url: authentication/toloka-authentication.yml
- type: GitHubOrganization
  url: https://github.com/Toloka
- type: LinkedIn
  url: https://www.linkedin.com/company/toloka
- type: Website
  url: https://toloka.ai
- type: Documentation
  url: https://toloka.ai/docs/api/
- type: Plans
  url: plans/toloka-plans-pricing.yml
- type: RateLimits
  url: rate-limits/toloka-rate-limits.yml
- type: FinOps
  url: finops/toloka-finops.yml
- type: Blog
  url: https://toloka.ai/blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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