Home Providers Trello
Trello
Trello is a web-based, kanban-style, list-making application from Atlassian that lets teams organize tasks, projects and workflows as boards, lists and cards. Its public REST API v1 at https://api.trello.com/1 exposes 261 operations across boards, lists, cards, checklists, labels, custom fields, attachments, members, workspaces, enterprises, actions, notifications, search, webhooks, tokens and Power-Up plugins, with a first-party OpenAPI 3.0.0 definition published by Atlassian. Authorization is an API key plus user token, or OAuth 2.0 3LO with ten granular scopes, generally available since 15 September 2026. Trello also ships a webhook surface signed with HMAC-SHA1, a browser client library (client.js), and the Power-Ups framework for extending the Trello board UI. The platform publishes no MCP server and no A2A agent card, no idempotency mechanism and no rate-limit response headers.
Trello publishes 17 APIs on the APIs.io network, including Webhooks API, Actions API, Boards API, and 14 more. Tagged areas include Project Management, Kanban, Task Management, Collaboration, and Productivity.
The Trello catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 3 Spectral governance rulesets.
Trello’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 46 more developer resources.
2 APIs16 Features
On this page
Kin Score
APIs 17
Open Collections 16
Pricing Plans 1
Rate Limits 1
FinOps 1
Features 16
Event Specs 1
Vocabularies 1
Spectral Rules 3
JSON Schema 3
JSON Structure 2
Security Posture 4
Scopes 1
Agentic Access 1
Resources 53
apis.yml
97 Operational Transparency
0 Create-or-Update Ergonomics
Composite quality — 75.7/100 · exemplar
Agent readiness — 29/100 · agent ready
Individual APIs this provider publishes, each with its own machine-readable definition.
The Trello Webhooks API allows developers to receive real-time notifications when changes occur on Trello models such as boards, lists, and cards. Rather than polling the REST A...
Trello Power-Ups are a framework for extending and integrating with the Trello platform. Power-Ups allow developers to add custom functionality to Trello boards, including custo...
Operations for retrieving and managing actions, which represent activity events that occur on Trello objects such as boards, lists, and cards.
Operations for creating, retrieving, updating, and deleting boards, as well as managing board memberships, lists, cards, labels, and other board-level resources.
Operations for creating, retrieving, updating, and deleting cards, including managing card attachments, checklists, comments, labels, members, and stickers.
Operations for creating, retrieving, updating, and deleting checklists and their check items on cards.
Operations for creating, retrieving, updating, and deleting labels on boards and cards.
Operations for creating, retrieving, updating, and archiving lists on boards.
Operations for retrieving and updating member profiles, boards, organizations, and notification settings.
Operations for retrieving and managing member notifications about activity on boards, cards, and other Trello objects.
Operations for creating, retrieving, updating, and deleting Trello workspaces (organizations), including managing workspace members and settings.
Operations for managing Power-Up plugins, including listing, updating, and creating plugin marketplace listings.
Operations for searching across Trello boards, cards, members, and organizations using query strings.
Operations for retrieving and deleting API tokens and their associated webhooks.
Operations for creating, retrieving, updating, and deleting webhooks that deliver real-time notifications when Trello models change.
Operations for creating, retrieving, updating, and deleting custom field definitions and their values on boards and cards.
The complete first-party Trello REST API v1, as published by Atlassian at https://developer.atlassian.com/cloud/trello/swagger.v3.json. OpenAPI 3.0.0, 191 paths, 261 operations ...
Scroll for all 17
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Scroll for all 16
Published pricing tiers and plan structures.
Documented rate limits and quota policies.
Cost, billing, and metering signals for API financial operations.
Notable capabilities this provider offers.
Scroll for all 16
AsyncAPI definitions for this provider's event-driven and streaming APIs.
JSON-LD contexts and semantic vocabularies used across these APIs.
Spectral governance rulesets for linting and validating these APIs.
Standalone JSON Schema definitions for this provider's data models.
JSON Structure definitions describing this provider's data shapes.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
OAuth scopes governing access to this provider's APIs.
Recommended x-agentic-access execution contracts for AI agents.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 6
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 12
Pagination, idempotency, versioning, errors, and events
Scroll for all 12
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 8
Authentication, authorization, and security posture
Scroll for all 8
Operate 7
Status, limits, changes, and where to get help
Scroll for all 7
Commercial 5
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)
name: Trello
aid: trello
deliveryModel:
model: unknown
open_source: false
commercial: false
callable_host: true
label: Delivery model not determined — needs a product licence on record
confidence: low
source:
- openapi
generated: '2026-08-28'
method: derived
specificationVersion: '0.23'
accessModel:
pricing: freemium
onboarding: self-serve
trial: false
try_now: true
public: false
label: Freemium · Self-serve signup
confidence: medium
source:
- plans
- authentication
- security
generated: '2026-09-03'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/trello.png
url: https://raw.githubusercontent.com/api-evangelist/trello/refs/heads/main/apis.yml
modified: '2026-09-17'
apis:
- aid: trello:webhooks-api
name: Trello Webhooks API
tags:
- Event
- Notification
- Real-Time
- Webhook
tags_raw:
- Events
- Notifications
- Real-Time
- Webhooks
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
baseURL: https://api.trello.com
humanURL: https://developer.atlassian.com/cloud/trello/guides/rest-api/webhooks/
properties:
- url: https://developer.atlassian.com/cloud/trello/guides/rest-api/webhooks/
type: Documentation
- url: asyncapi/trello-webhooks-asyncapi.yml
type: AsyncAPI
description: The Trello Webhooks API allows developers to receive real-time notifications when changes occur on Trello models
such as boards, lists, and cards. Rather than polling the REST API for updates, webhooks push event data to a specified
callback URL via HTTP POST requests containing JSON payloads. Webhook requests are signed with HMAC-SHA1 for verification,
and webhooks are scoped to the permissions of the token used to create them.
- aid: trello:power-ups
name: Trello Power-Ups
tags:
- Customization
- Extensions
- Integration
- Plugins
tags_raw:
- Customization
- Extensions
- Integrations
- Plugins
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
baseURL: https://api.trello.com
humanURL: https://developer.atlassian.com/cloud/trello/power-ups/
properties:
- url: https://developer.atlassian.com/cloud/trello/power-ups/
type: Documentation
- url: https://developer.atlassian.com/cloud/trello/power-ups/client-library/
type: APIReference
name: Power-Up client library reference
- url: components/trello-components.yml
type: Components
description: Trello Power-Ups are a framework for extending and integrating with the Trello platform. Power-Ups allow developers
to add custom functionality to Trello boards, including custom fields, board buttons, card buttons, card badges, and card
detail sections. The Power-Up framework provides a client library with utilities and helpers for interacting with the
Trello interface, managing authorization, and accessing the REST API from within the Power-Up context.
- aid: trello:trello-actions-api
name: trello Actions API
description: Operations for retrieving and managing actions, which represent activity events that occur on Trello objects
such as boards, lists, and cards.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Actions
properties:
- type: OpenAPI
url: openapi/trello-actions-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-boards-api
name: trello Boards API
description: Operations for creating, retrieving, updating, and deleting boards, as well as managing board memberships,
lists, cards, labels, and other board-level resources.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Boards
properties:
- type: OpenAPI
url: openapi/trello-boards-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-cards-api
name: trello Cards API
description: Operations for creating, retrieving, updating, and deleting cards, including managing card attachments, checklists,
comments, labels, members, and stickers.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Cards
properties:
- type: OpenAPI
url: openapi/trello-cards-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-checklists-api
name: trello Checklists API
description: Operations for creating, retrieving, updating, and deleting checklists and their check items on cards.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Checklists
properties:
- type: OpenAPI
url: openapi/trello-checklists-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-labels-api
name: trello Labels API
description: Operations for creating, retrieving, updating, and deleting labels on boards and cards.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Labels
properties:
- type: OpenAPI
url: openapi/trello-labels-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-lists-api
name: trello Lists API
description: Operations for creating, retrieving, updating, and archiving lists on boards.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- List
tags_raw:
- Lists
properties:
- type: OpenAPI
url: openapi/trello-lists-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-members-api
name: trello Members API
description: Operations for retrieving and updating member profiles, boards, organizations, and notification settings.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Members
properties:
- type: OpenAPI
url: openapi/trello-members-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-notifications-api
name: trello Notifications API
description: Operations for retrieving and managing member notifications about activity on boards, cards, and other Trello
objects.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Notification
tags_raw:
- Notifications
properties:
- type: OpenAPI
url: openapi/trello-notifications-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-organizations-api
name: trello Organizations API
description: Operations for creating, retrieving, updating, and deleting Trello workspaces (organizations), including managing
workspace members and settings.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Organization
tags_raw:
- Organizations
properties:
- type: OpenAPI
url: openapi/trello-organizations-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-plugins-api
name: trello Plugins API
description: Operations for managing Power-Up plugins, including listing, updating, and creating plugin marketplace listings.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Plugins
properties:
- type: OpenAPI
url: openapi/trello-plugins-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-search-api
name: trello Search API
description: Operations for searching across Trello boards, cards, members, and organizations using query strings.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Search
properties:
- type: OpenAPI
url: openapi/trello-search-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-tokens-api
name: trello Tokens API
description: Operations for retrieving and deleting API tokens and their associated webhooks.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Tokens
properties:
- type: OpenAPI
url: openapi/trello-tokens-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-webhooks-api
name: trello Webhooks API
description: Operations for creating, retrieving, updating, and deleting webhooks that deliver real-time notifications when
Trello models change.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com
tags:
- Webhook
tags_raw:
- Webhooks
properties:
- type: OpenAPI
url: openapi/trello-webhooks-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-custom-fields-api
name: Trello Custom Fields API
description: Operations for creating, retrieving, updating, and deleting custom field definitions and their values on boards
and cards.
humanURL: https://developer.atlassian.com/cloud/trello/guides/rest-api/webhooks/
baseURL: https://api.trello.com
tags:
- Custom Fields
properties:
- type: OpenAPI
url: openapi/trello-custom-fields-api-openapi.yml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- aid: trello:trello-rest-api
name: Trello REST API
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
description: The complete first-party Trello REST API v1, as published by Atlassian at https://developer.atlassian.com/cloud/trello/swagger.v3.json.
OpenAPI 3.0.0, 191 paths, 261 operations and 63 schemas covering boards, lists, cards, checklists, labels, custom fields,
attachments, members, workspaces, enterprises, actions, notifications, search, webhooks, tokens, Power-Up plugins, emoji
and batch requests. Every operation carries an operationId and a summary. Authorization is an API key plus user token
passed as query parameters, or OAuth 2.0 3LO (GA 15 September 2026) with ten granular scopes.
humanURL: https://developer.atlassian.com/cloud/trello/rest/
baseURL: https://api.trello.com/1
tags:
- Project Management
- Kanban
- Task Management
- Collaboration
- Productivity
properties:
- type: OpenAPI
url: openapi/trello-rest-api-openapi.json
- type: OpenAPI
url: https://developer.atlassian.com/cloud/trello/swagger.v3.json
name: OpenAPI (provider-hosted)
- type: Overlay
url: overlays/trello-rest-api-overlay.yaml
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- type: APIReference
url: https://developer.atlassian.com/cloud/trello/rest/
- type: GettingStarted
url: https://developer.atlassian.com/cloud/trello/guides/rest-api/api-introduction/
- type: DataModel
url: data-model/trello-data-model.yml
- type: ErrorCatalog
url: errors/trello-problem-types.yml
- type: Conventions
url: conventions/trello-conventions.yml
common:
- type: Website
url: https://trello.com/
- type: DeveloperPortal
url: https://developer.atlassian.com/cloud/trello/
- type: Documentation
url: https://developer.atlassian.com/cloud/trello/rest/
- type: APIReference
url: https://developer.atlassian.com/cloud/trello/rest/
- type: GettingStarted
url: https://developer.atlassian.com/cloud/trello/guides/rest-api/api-introduction/
- type: Support
url: https://support.atlassian.com/trello/
- type: Community
url: https://community.developer.atlassian.com/c/trello/
- type: Blog
url: https://www.atlassian.com/blog/trello
- type: Roadmap
url: https://www.atlassian.com/roadmap/cloud?products=trello
- type: Pricing
url: https://trello.com/pricing
- type: SignUp
url: https://trello.com/signup
- type: TermsOfService
url: https://www.atlassian.com/legal/cloud-terms-of-service
- type: PrivacyPolicy
url: https://www.atlassian.com/legal/privacy-policy
- type: Plans
url: plans/trello-plans-pricing.yml
- type: RateLimits
url: rate-limits/trello-rate-limits.yml
- type: FinOps
url: finops/trello-finops.yml
- type: Packages
url: packages/trello-packages.yml
- type: SDKs
url: packages/trello-packages.yml
- type: Components
url: components/trello-components.yml
- type: WellKnown
url: well-known/trello-well-known.yml
- type: SecurityTxt
url: well-known/trello-security.txt
- type: Security
url: security/trello-vulnerability-disclosure.yml
- type: Compliance
url: conformance/trello-conformance.yml
- type: Conformance
url: conformance/trello-conformance.yml
- type: Lifecycle
url: lifecycle/trello-lifecycle.yml
- type: StatusPage
url: https://trello.status.atlassian.com/
- type: Deprecation
url: lifecycle/trello-lifecycle.yml
- type: ChangeLog
url: changelog/trello-changelog.yml
- type: Conventions
url: conventions/trello-conventions.yml
- type: ErrorCatalog
url: errors/trello-problem-types.yml
- type: DataModel
url: data-model/trello-data-model.yml
- type: AgentSkill
url: skills/_index.yml
- type: LLMsTxt
url: llms/trello-llms.txt
- type: Overlay
url: overlays/trello-rest-api-overlay.yaml
- type: AsyncAPI
url: asyncapi/trello-webhooks-asyncapi.yml
- type: Webhooks
url: https://developer.atlassian.com/cloud/trello/guides/rest-api/webhooks/
- type: Examples
url: examples/trello-get-board-cards-example.json
- type: OAuthScopes
url: scopes/trello-scopes.yml
- type: AgenticAccess
url: agentic-access/trello-agentic-access.yml
- type: TrustCenter
url: security/trello-trust-center.yml
- type: VulnerabilityDisclosure
url: security/trello-vulnerability-disclosure.yml
- type: DomainSecurity
url: security/trello-domain-security.yml
- type: Authentication
url: authentication/trello-authentication.yml
- type: GitHubOrganization
url: https://github.com/trello
- type: LinkedIn
url: https://www.linkedin.com/company/atlassian
- type: JSONLD
url: json-ld/trello-context.jsonld
- type: JSONSchema
url: json-schema/trello-board-schema.json
- type: JSONSchema
url: json-schema/trello-card-schema.json
- type: JSONSchema
url: json-schema/trello-webhook-payload-schema.json
- type: JSONStructure
url: json-structure/trello-board-structure.json
- type: JSONStructure
url: json-structure/trello-card-structure.json
- type: SpectralRules
url: rules/trello-spectral-rules.yml
- type: Vocabulary
url: vocabulary/trello-vocabulary.yml
- type: Features
data:
- 'Free: up to 10 boards per workspace, unlimited cards'
- 'Standard at $5/user/mo: unlimited boards, AI quick capture, custom fields'
- 'Premium at $10/user/mo: AI, multiple views (Timeline/Calendar/Table)'
- 'Enterprise at $17.50/user/mo: org-wide permissions, SSO via Atlassian Guard'
- REST API at api.trello.com/1
- 'Per API key: 300 req/10s'
- 'Per token: 100 req/10s'
- 'Search: 50 req/min'
- 'Webhook deliveries: 600 events/min'
- Power-Ups for board extensions
- Butler automation (rules, buttons, scheduled commands)
- Card mirroring (Standard+)
- OAuth 1.0a + API key/token
- Webhooks for board, list, card, member events
- Atlassian-owned (Confluence/Jira ecosystem)
- iOS, Android, desktop apps
sources:
- https://trello.com/pricing
updated: '2026-05-04'
description: Trello is a web-based, kanban-style, list-making application from Atlassian that lets teams organize tasks, projects
and workflows as boards, lists and cards. Its public REST API v1 at https://api.trello.com/1 exposes 261 operations across
boards, lists, cards, checklists, labels, custom fields, attachments, members, workspaces, enterprises, actions, notifications,
search, webhooks, tokens and Power-Up plugins, with a first-party OpenAPI 3.0.0 definition published by Atlassian. Authorization
is an API key plus user token, or OAuth 2.0 3LO with ten granular scopes, generally available since 15 September 2026. Trello
also ships a webhook surface signed with HMAC-SHA1, a browser client library (client.js), and the Power-Ups framework for
extending the Trello board UI. The platform publishes no MCP server and no A2A agent card, no idempotency mechanism and
no rate-limit response headers.
created: '2026-05-03'
tags:
- Project Management
- Kanban
- Task Management
- Collaboration
- Productivity
- Workflows
- Boards
- Atlassian
tags_raw:
- Project Management
- Kanban
- Task Management
- Collaboration
- Productivity
- Workflow
- Boards
- Atlassian
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
url: https://apievangelist.com
x-enrichment:
date: '2026-09-17'
status: enriched
artifacts_added: 21
pass: local-v3
Every provider here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for providers
9 MCP tools reach this
find_providersBrowse and filter every provider in the catalog. get_provider_artifactsEvery artifact this provider publishes, grouped by type. get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec. get_provider_toolsEvery MCP tool they ship, with the operation each wraps. get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it. get_provider_ratingPRO — composite, band, trend and facet scores. 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
curl for this page
This provider
curl "https://apis.io/api/v1/providers/trello"
All providers
curl "https://apis.io/api/v1/providers?limit=25"
Every operation they expose
curl "https://apis.io/api/v1/providers/trello/operations?limit=25"
How their score was established
curl "https://apis.io/api/v1/providers/trello/evidence"
Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we
store it to create your key and to recognise you if you sign in with another
provider. See our Privacy Policy and
Terms .
A second provider on the same verified email joins the account you already have.
Kin Score
How this is scored →