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trello

Trello is a web-based, kanban-style, list-making application that allows users to organize tasks, projects, and workflows using boards, lists, and cards.

agent ready

Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.

Kin Score

API Evangelist profiles trello the way a machine reads it — 52 machine-readable artifacts across 16 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — trello scores 50.0/100 (developing), with a separate agent-readiness read of 54/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 50.0/100 · developing
Contract Quality 18.9 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 9.5 / 20
Operational Transparency 4.8 / 13
Governance 7.9 / 12
Discoverability 6.8 / 10
Agent readiness — 54/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
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 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile trello

Each block below is one kind of artifact we hold for trello. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 16

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

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

Trello Webhooks API

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

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...

trello Actions API

Operations for retrieving and managing actions, which represent activity events that occur on Trello objects such as boards, lists, and cards.

trello Boards API

Operations for creating, retrieving, updating, and deleting boards, as well as managing board memberships, lists, cards, labels, and other board-level resources.

trello Cards API

Operations for creating, retrieving, updating, and deleting cards, including managing card attachments, checklists, comments, labels, members, and stickers.

trello Checklists API

Operations for creating, retrieving, updating, and deleting checklists and their check items on cards.

trello CustomFields API

Operations for creating, retrieving, updating, and deleting custom field definitions and their values on boards and cards.

trello Labels API

Operations for creating, retrieving, updating, and deleting labels on boards and cards.

trello Lists API

Operations for creating, retrieving, updating, and archiving lists on boards.

trello Members API

Operations for retrieving and updating member profiles, boards, organizations, and notification settings.

trello Notifications API

Operations for retrieving and managing member notifications about activity on boards, cards, and other Trello objects.

trello Organizations API

Operations for creating, retrieving, updating, and deleting Trello workspaces (organizations), including managing workspace members and settings.

trello Plugins API

Operations for managing Power-Up plugins, including listing, updating, and creating plugin marketplace listings.

trello Search API

Operations for searching across Trello boards, cards, members, and organizations using query strings.

trello Tokens API

Operations for retrieving and deleting API tokens and their associated webhooks.

trello Webhooks API

Operations for creating, retrieving, updating, and deleting webhooks that deliver real-time notifications when Trello models change.

Scroll within the panel for all 16 ·

Open Collections 1

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

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

Trello REST API

OPEN COLLECTION

GraphQL 1

Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.

GraphQL schemas published by this provider.

Trello GraphQL Schema

This document describes a conceptual GraphQL schema for the Trello API. Trello exposes a REST API at `https://api.trello.com/1/` with key/token authentication. This GraphQL sche...

GRAPHQL

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Trello Plans Pricing

4 plans

PLANS

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Trello Rate Limits

4 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

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

Features 16

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

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

Scroll within the panel for all 16 ·

Event Specifications 1

Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Trello Webhooks Events

The Trello Webhooks API delivers real-time notifications when changes occur on Trello models such as boards, lists, cards, and members. Rather than polling the REST API for upda...

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Trello Context

0 classes · 13 properties

JSON-LD

Spectral Rules 3

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

trello API Rules

8 rules · 1 errors · 7 warnings

SPECTRAL

trello API Rules

6 rules · 4 warnings

SPECTRAL

trello API Rules

20 rules · 4 errors · 14 warnings

SPECTRAL

JSON Schema 3

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

Trello Board

17 properties

JSON SCHEMA

Trello Card

24 properties

JSON SCHEMA

Trello Webhook Payload

2 properties

JSON SCHEMA

JSON Structure 2

JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.

JSON Structure definitions describing this provider's data shapes.

Trello Board Structure

0 properties

JSON STRUCTURE

Trello Card Structure

0 properties

JSON STRUCTURE

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

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

Trello Authentication

apiKey · 2 schemes

SECURITY

Trello Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Trello Vulnerability Disclosure

security.txt · contact published

SECURITY

Trello Trust Center

FedRAMP

SECURITY

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

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

Trello Agentic Access

101 operations · 53 acting

101 operations · 53 acting

AGENTIC

Resources

Every other property we hold for trello — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Build 1

SDKs, sample code, and the tooling you integrate with

Company 1

The organization behind the API

← All providers · Data indexed from github.com/api-evangelist/trello · machine-readable index on apis.io