Appsmith

Appsmith is an open source (Apache-2.0) low-code platform for building internal tools, admin panels and workflow applications on top of 25+ databases and any REST or GraphQL API. It runs self-hosted via Docker, Kubernetes or Helm, or as Appsmith Cloud. Its agent surface is a first-party Model Context Protocol server bundled into the Appsmith image and fronted at /mcp, exposing 61 tools that build and edit applications under the calling user's own permissions; it ships disabled by default and requires a per-user mcp_ token. Appsmith publishes no public REST API reference: the platform API at /api/v1 is undocumented editor traffic and its springdoc OpenAPI surface is disabled by default and authenticated when enabled.

Appsmith publishes 3 API contracts indexed on the APIs.io network: Applications API, Workspaces API, and Data Sources API. Tagged areas include Low-Code, Open Source, Internal Tools, Workflow Automation, and Developer Tools.

The Appsmith catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Appsmith’s developer surface includes authentication, documentation, changelog, CLI, getting-started guide, support, engineering blog, and 33 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

67.0/100 exemplar ▬ flat Agent 34/100 agent ready Front door AI 4/6 moderate Heartbeat 100/100 alive self hosted · Apache-2.0 Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 1 MCP Servers 2 Agent Skills

Low-Code Open Source Internal Tools Workflow Automation Developer Tools

What people ask Appsmith 3

The questions people put to an LLM, and the jobs they hand an agent, that Appsmith's APIs answer — each one linked to the operation that does it. Generated by API Evangelist

Appsmith Applications API List low-code applications “Which apps have we built in Appsmith so far?” Create a new low-code application “How do I start a brand-new internal tool app programmatically?” Get details of one application “How can I look up the details of a single app when I know its ID?”

Appsmith Data Sources API List connected datasources “Which databases and APIs are connected to our Appsmith apps?”

Appsmith Workspaces API List workspaces I can access “Which Appsmith workspaces do I have access to?”

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 67.0/100 · exemplar

Contract Quality 10.5 / 16

Developer Ergonomics 5.8 / 13

Access Clarity 11.3 / 13

Operational Transparency 5.8 / 8

Contract Governance 2.1 / 8

Discoverability 4.0 / 7

Regulatory Posture 5.3 / 15

Open Source Surface 10.0 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 34/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.

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.

The six quality facets above are damped to 65 points between them, because both conditional facets apply and carry 35 points together. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 65% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 44.6 — up to +11.1 composite points
Contract Quality scores 64.5 — up to +8.9 composite points
Contract Governance scores 27.3 — up to +8.7 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/appsmith/apis.yml: open an issue on github.com/api-evangelist/appsmith to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Atlassian Marketplace (builders on Jira, Confluence, Bitbucket)	builds-on	15.2	-	1
DigitalOcean Marketplace (partner 1-click apps and SaaS add-ons)	builds-on	15.2	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (templated)

OpenAPI

measured — observed by APIs.io (published)

APIs 3

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

Appsmith Applications API

Low-code application management

Appsmith Workspaces API

Workspace organization and management

Appsmith Data Sources API

Connected datasource management

Open Collections 3

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

Appsmith Applications API

OPEN COLLECTION

Appsmith Applications Datasources API

OPEN COLLECTION

Appsmith Applications Workspaces API

OPEN COLLECTION

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Appsmith MCP server

Remote MCP server at {your-appsmith-instance} requiring an API key; 61 tools listed.

MCP SERVER

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

appsmith-build-internal-tool

AGENT SKILL

appsmith-governed-change

AGENT SKILL

Appsmith API pricing

Prices published by Appsmith, read 2026-10-28 from www.appsmith.com/pricing.

Plan	Price
Free	$0 per user Includes: Up to 5 users for cloud, 5 workspaces, Version control with Git 3 repos, Google SSO, 3 standard role
Business	$15/ Month per user Includes: Everything in Free, plus Up to 99 users, unlimited environments, Git repos, and workspaces, workflow
Enterprise	$2,500/ Month Includes: Everything in Business, plus SAML/OIDC SSO, SCIM, CI/CD, private app embedding, airgapped edition (a
Community	available for free Includes: Open-source low code application platform

Plan details, limits and sources →

Rate limits

Caddy edge limiter: 100 requests
MCP authentication: 5 authentication attempts
Login: 5 failed login attempts

All 6 limits →

Billed by: user · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Appsmith Plans Pricing

4 plans

PLANS

Appsmith Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Appsmith Rate Limits

6 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Appsmith

SLA

FinOps 1

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

Appsmith Finops

FINOPS

Semantic Vocabularies 1

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

Appsmith Context

10 classes · 0 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Appsmith — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

Appsmith API Rules

23 rules · 8 errors 14 warnings 1 info

SPECTRAL

OpenAPI Overlays 3

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Appsmith Applications Api Phrasing Overlay

4 actions · phrasing · appsmith-applications-api-openapi.yml

GENERATED

Appsmith Data Sources Api Phrasing Overlay

2 actions · phrasing · appsmith-data-sources-api-openapi.yml

GENERATED

Appsmith Workspaces Api Phrasing Overlay

2 actions · phrasing · appsmith-workspaces-api-openapi.yml

GENERATED

JSON Schema 1

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

Application

8 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Application Structure

0 properties

JSON STRUCTURE

Examples 1

Example request and response payloads for these APIs.

Application Example

8 fields

EXAMPLE

Security Posture 4

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

Appsmith Authentication

cookie/http-bearer/apiKey · 3 schemes

SECURITY

Appsmith Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Appsmith Vulnerability Disclosure

no policy recorded

SECURITY

Appsmith Trust Center

SOC 2

SECURITY

Agentic Access 1

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

Appsmith Agentic Access

5 operations · 1 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

MCPServer

AgentSkill

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

DataModel

Conformance

Lifecycle

Components

Build 5

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

ToolCrosswalk

CLI

Packages

GitHubOrganization

GitHubOrganization

Access & Security 6

Authentication, authorization, and security posture

SecurityPolicy

TrustCenter

DomainSecurity

Authentication

Compliance

VulnerabilityDisclosure

VulnerabilityDisclosure

Operate 6

Status, limits, changes, and where to get help

IssueTracker

Releases

StatusPage

ChangeLog

RateLimits

Support

Commercial 6

Pricing, plans, and the legal terms of use

License

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: appsmith
name: Appsmith
description: 'Appsmith is an open source (Apache-2.0) low-code platform for building internal tools, admin panels and workflow
  applications on top of 25+ databases and any REST or GraphQL API. It runs self-hosted via Docker, Kubernetes or Helm, or
  as Appsmith Cloud. Its agent surface is a first-party Model Context Protocol server bundled into the Appsmith image and
  fronted at /mcp, exposing 61 tools that build and edit applications under the calling user''s own permissions; it ships
  disabled by default and requires a per-user mcp_ token. Appsmith publishes no public REST API reference: the platform API
  at /api/v1 is undocumented editor traffic and its springdoc OpenAPI surface is disabled by default and authenticated when
  enabled.'
type: Index
deliveryModel:
  model: self-hosted
  license: Apache-2.0
  open_source: true
  commercial: false
  callable_host: true
  label: Self-hosted open source · you run it yourself
  confidence: high
  source:
  - license
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/appsmith.png
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-19
x-docs-hosting: vercel
tags:
- Low-Code
- Open Source
- Internal Tools
- Workflow Automation
- Developer Tools
tags_raw:
- Low-Code
- Open Source
- Internal Tools
- Workflow Automation
- Developer Tools
- Open-Source
- Workflow-Automation
url: https://raw.githubusercontent.com/api-evangelist/appsmith/refs/heads/main/apis.yml
created: 2026-03-27
modified: '2026-09-04'
specificationVersion: '0.23'
apis:
- aid: appsmith:appsmith-applications-api
  name: Appsmith Applications API
  description: Low-code application management
  humanURL: https://docs.appsmith.com
  baseURL: https://app.appsmith.com/api/v1
  tags:
  - Application
  tags_raw:
  - Applications
  properties:
  - type: OpenAPI
    url: openapi/appsmith-applications-api-openapi.yml
  - type: Website
    url: https://www.appsmith.com
  - type: Documentation
    url: https://docs.appsmith.com
  - type: GitHubRepository
    url: https://github.com/appsmithorg/appsmith
  - type: JSONSchema
    url: json-schema/application-schema.json
  - type: JSONStructure
    url: json-structure/application-structure.json
  - type: Examples
    url: examples/application-example.json
  - type: JSONLD
    url: json-ld/appsmith-context.jsonld
  - type: SpectralRules
    url: rules/appsmith-spectral-rules.yml
  - type: Vocabulary
    url: vocabulary/appsmith-vocabulary.yaml
- aid: appsmith:appsmith-workspaces-api
  name: Appsmith Workspaces API
  description: Workspace organization and management
  humanURL: https://docs.appsmith.com
  baseURL: https://app.appsmith.com/api/v1
  tags:
  - Workspace
  tags_raw:
  - Workspaces
  properties:
  - type: OpenAPI
    url: openapi/appsmith-workspaces-api-openapi.yml
  - type: Website
    url: https://www.appsmith.com
  - type: Documentation
    url: https://docs.appsmith.com
  - type: GitHubRepository
    url: https://github.com/appsmithorg/appsmith
  - type: JSONSchema
    url: json-schema/application-schema.json
  - type: JSONStructure
    url: json-structure/application-structure.json
  - type: Examples
    url: examples/application-example.json
  - type: JSONLD
    url: json-ld/appsmith-context.jsonld
  - type: SpectralRules
    url: rules/appsmith-spectral-rules.yml
  - type: Vocabulary
    url: vocabulary/appsmith-vocabulary.yaml
- aid: appsmith:appsmith-data-sources-api
  name: Appsmith Data Sources API
  description: Connected datasource management
  humanURL: https://docs.appsmith.com
  baseURL: https://app.appsmith.com/api/v1
  tags:
  - Data Sources
  properties:
  - type: OpenAPI
    url: openapi/appsmith-data-sources-api-openapi.yml
  - type: Website
    url: https://www.appsmith.com
  - type: Documentation
    url: https://docs.appsmith.com
  - type: GitHubRepository
    url: https://github.com/appsmithorg/appsmith
  - type: JSONSchema
    url: json-schema/application-schema.json
  - type: JSONStructure
    url: json-structure/application-structure.json
  - type: Examples
    url: examples/application-example.json
  - type: JSONLD
    url: json-ld/appsmith-context.jsonld
  - type: SpectralRules
    url: rules/appsmith-spectral-rules.yml
  - type: Vocabulary
    url: vocabulary/appsmith-vocabulary.yaml
common:
- type: IssueTracker
  url: https://github.com/appsmithorg/appsmith/issues
- type: Releases
  url: https://github.com/appsmithorg/appsmith/releases
- type: SecurityPolicy
  url: https://github.com/appsmithorg/appsmith/blob/release/SECURITY.md
- type: CodeOfConduct
  url: https://github.com/appsmithorg/appsmith/blob/release/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/appsmithorg/appsmith/blob/release/CONTRIBUTING.md
- type: License
  name: Apache-2.0
  url: https://github.com/appsmithorg/appsmith/blob/release/LICENSE
- type: AgenticAccess
  url: agentic-access/appsmith-agentic-access.yml
- type: TrustCenter
  url: security/appsmith-trust-center.yml
- type: DomainSecurity
  url: security/appsmith-domain-security.yml
- type: Authentication
  url: authentication/appsmith-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/appsmith
- type: Website
  url: https://www.appsmith.com
- type: Documentation
  url: https://docs.appsmith.com
- type: MCPServer
  url: mcp/appsmith-mcp.yml
- type: ToolCrosswalk
  url: mcp/appsmith-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: ErrorCatalog
  url: errors/appsmith-error-codes.yml
- type: Conventions
  url: conventions/appsmith-conventions.yml
- type: DataModel
  url: data-model/appsmith-data-model.yml
- type: Conformance
  url: conformance/appsmith-conformance.yml
- type: Compliance
  url: https://security.appsmith.com/
- type: VulnerabilityDisclosure
  url: security/appsmith-vulnerability-disclosure.yml
- type: Lifecycle
  url: lifecycle/appsmith-lifecycle.yml
- type: StatusPage
  url: https://status.appsmith.com
- type: ChangeLog
  url: changelog/appsmith-changelog.yml
- type: CLI
  url: cli/appsmith-cli.yml
- type: Components
  url: components/appsmith-components.yml
- type: Packages
  url: packages/appsmith-packages.yml
- type: RateLimits
  url: rate-limits/appsmith-rate-limits.yml
- type: Plans
  url: plans/appsmith-plans-pricing.yml
- type: FinOps
  url: finops/appsmith-finops.yml
- type: Integrations
  url: integrations/_index.yml
- type: LLMsTxt
  url: llms/appsmith-llms.txt
- type: GitHubOrganization
  url: https://github.com/appsmithorg
- type: GettingStarted
  url: https://docs.appsmith.com/getting-started
- type: Support
  url: https://community.appsmith.com
- type: Blog
  url: https://www.appsmith.com/blog
- type: Pricing
  url: https://www.appsmith.com/pricing
- type: SignUp
  url: https://app.appsmith.com/user/signup
- type: TermsOfService
  url: https://www.appsmith.com/terms-and-conditions
- type: PrivacyPolicy
  url: https://www.appsmith.com/privacy-policy
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-09-04'
  status: enriched
  artifacts_added: 17
  pass: local-v3

Appsmith API — frequently asked questions

Does Appsmith have an API?

Yes. APIs.io lists 3 APIs from Appsmith, including Appsmith Applications API, Appsmith Workspaces API and Appsmith Data Sources API.

Is there an OpenAPI specification for the Appsmith API?

Yes. APIs.io indexes 3 OpenAPI specifications for Appsmith, each linked for download from this page.

How do I authenticate with the Appsmith API?

Appsmith uses bearer-token authentication (cookie/http-bearer/apiKey · 3 schemes). The details are profiled on APIs.io as Appsmith Authentication.

How much does the Appsmith API cost?

Appsmith publishes its prices; its Free plan is $0 per user as of 2026-10-28. APIs.io lists 4 pricing plans for Appsmith, with each plan's price, limits and inclusions under Pricing on this page.

Does Appsmith have an MCP server?

Yes. APIs.io lists 1 MCP server for Appsmith: Remote MCP server at {your-appsmith-instance} requiring an API key; 61 tools listed.

Is the Appsmith API ready for AI agents?

Appsmith has a Kin Score of 67.0 out of 100 (exemplar) and an Agent Readiness score of 34.0 (agent-ready), scored by API Evangelist on 2026-11-06.

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