Streamlit

Streamlit is an open-source Python framework that makes it easy to build and share beautiful, custom web apps for machine learning and data science. With Streamlit, you can turn data scripts into shareable web applications in minutes without needing front-end experience. Streamlit Community Cloud provides free hosting for Streamlit apps directly from GitHub repositories. The framework offers a Python API for displaying data, creating interactive widgets, caching computation, and connecting to databases and APIs.

Streamlit publishes 4 API contracts indexed on the APIs.io network, including Apps API, Secrets API, Workspaces API, and 1 more. Tagged areas include Data Science, Machine Learning, Open Source, Python, and Web Applications.

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

Streamlit’s developer surface includes authentication, documentation, GitHub presence, engineering blog, changelog, signup flow, and 24 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

41.7/100 developing ▬ flat Agent 20/100 agent aware Front door AI 5/6 prominent Heartbeat 61/100 alive open core · Apache-2.0 Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Data Science Machine Learning Open Source Python Web Applications

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Software Release & Deployment Management

BC-4210

Secrets

GET /apps/{appId}/secrets PUT /apps/{appId}/secrets

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 41.7/100 · developing

Contract Quality 9.7 / 19

Developer Ergonomics 4.5 / 15

Access Clarity 8.3 / 15

Operational Transparency 2.6 / 10

Contract Governance 1.2 / 9

Discoverability 4.8 / 8

Regulatory Posture 3.3 / 15

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

Pagination 5 / 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.

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 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
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) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

9 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 29.8 — up to +14.0 composite points Ask about this →
Contract Quality scores 51.8 — up to +12.1 composite points Ask about this →
Contract Governance scores 13.6 — up to +10.4 composite points Ask about this →

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.

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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/streamlit/apis.yml: open an issue on github.com/api-evangelist/streamlit 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
Hugging Face Hub Organisations	standard	34.5 (thin)	-	-

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 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 4

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

Streamlit Python API

The Streamlit Python library API provides a rich set of functions for building interactive data applications. Organized by activity type: display data (st.write, st.dataframe, s...

Streamlit Apps API

Manage Streamlit applications deployed on Community Cloud. Deploy, list, restart, and delete apps connected to GitHub repositories.

Streamlit Secrets API

Manage secrets for Streamlit applications. Secrets are environment variables securely injected into the application at runtime via st.secrets.

Streamlit Workspaces API

Manage Streamlit Community Cloud workspaces and their settings.

Open Collections 4

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

Streamlit Community Cloud Apps API

OPEN COLLECTION

Streamlit Community Cloud API

OPEN COLLECTION

Streamlit Community Cloud Apps Secrets API

OPEN COLLECTION

Streamlit Community Cloud Apps Workspaces API

OPEN COLLECTION

Streamlit API pricing

Not yet checked against Streamlit's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Streamlit's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Streamlit Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Streamlit Rate Limits

5 limits

RATE LIMITS

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Streamlit

10 quoted statements, read from Streamlit's own page on 2026-11-10.

TERMS

Compliance 1

Attestations the provider states (SOC 2, ISO 27001 and others), quoted from its own trust page. APIs.io verifies none of them.

Streamlit

1 quoted statement, read from Streamlit's own page on 2026-11-10.

COMPLIANCE

Eligibility 1

Who may sign up and where, quoted from its own terms.

Streamlit

6 quoted statements, read from Streamlit's own page on 2026-11-10.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

Streamlit

1 quoted statement, read from Streamlit's own page on 2026-11-10.

AI PREFS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

Streamlit

1 quoted statement, read from Streamlit's own page on 2026-11-10.

LICENSE

FinOps 1

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

Streamlit Finops

FINOPS

Semantic Vocabularies 1

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

Streamlit Context

0 classes · 2 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Streamlit — jsonschema rules

5 rules · 3 warn-severity 2 info-severity

SPECTRAL

Streamlit API Rules

8 rules · 2 error-severity 4 warn-severity 2 info-severity

SPECTRAL

JSON Schema 1

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

Streamlit Community Cloud App

10 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Streamlit App Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

Streamlit Deploy App Example

2 fields

EXAMPLE

Streamlit List Apps Example

2 fields

EXAMPLE

Security Posture 3

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

Streamlit Authentication

http · 1 scheme

SECURITY

Streamlit Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Streamlit Trust Center

SOC 2, ISO 27001

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Streamlit Agentic Access

8 operations · 4 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Signup

Signup

Documentation 4

Reference material describing how the API behaves

Documentation

OpenAPI

JSONSchema

AIPreferences

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLDContext

JSONLDContext

Build 2

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHub

GitHub

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

Forums

Forums

ChangeLog

ChangeLog

Commercial 6

Pricing, plans, and the legal terms of use

Plans

FinOps

TermsOfService

PrivacyPolicy

UsageTerms

DataLicense

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 5

Properties that don't map to a standard resource type

CapabilityMap

Gallery

PyPI

Attestations

Eligibility

Source (apis.yml)

aid: streamlit
name: Streamlit
description: Streamlit is an open-source Python framework that makes it easy to build and share beautiful, custom web apps
  for machine learning and data science. With Streamlit, you can turn data scripts into shareable web applications in minutes
  without needing front-end experience. Streamlit Community Cloud provides free hosting for Streamlit apps directly from GitHub
  repositories. The framework offers a Python API for displaying data, creating interactive widgets, caching computation,
  and connecting to databases and APIs.
url: https://raw.githubusercontent.com/api-evangelist/streamlit/refs/heads/main/apis.yml
deliveryModel:
  model: open-core
  license: Apache-2.0
  license_evidence:
    repo: streamlit/streamlit
    spdx: Apache-2.0
    stars: 45834
  open_source: true
  commercial: true
  callable_host: false
  label: Open core · an OSS project plus a commercial hosted product
  confidence: medium
  source:
  - openapi
  - pricing
  - repository-license
  generated: '2026-09-25'
  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: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://streamlit.io/images/brand/streamlit-mark-color.png
tags:
- Data Science
- Machine Learning
- Open Source
- Python
- Web Applications
tags_raw:
- Data Science
- Machine Learning
- Open Source
- Python
- Web Applications
- Machine-Learning
- Open-Source
type: Index
access: 3rd-Party
position: Consuming
created: '2025-02-12'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: streamlit:streamlit-python-api
  name: Streamlit Python API
  description: 'The Streamlit Python library API provides a rich set of functions for building interactive data applications.
    Organized by activity type: display data (st.write, st.dataframe, st.table), input widgets (st.button, st.slider, st.selectbox),
    layout (st.columns, st.tabs, st.sidebar), media (st.image, st.video, st.audio), charts (st.line_chart, st.bar_chart, st.map),
    and performance (st.cache_data, st.cache_resource). Also includes connection management via st.connection.'
  humanURL: https://docs.streamlit.io/develop/api-reference
  tags:
  - Data Science
  - Machine Learning
  - Open Source
  - Python
  - Web Applications
  tags_raw:
  - Data Science
  - Machine Learning
  - Open Source
  - Python
  - Web Applications
  - Machine-Learning
  - Open-Source
  properties:
  - type: Documentation
    url: https://docs.streamlit.io/develop/api-reference
  - type: GitHub
    url: https://github.com/streamlit/streamlit
  - type: ChangeLog
    url: https://docs.streamlit.io/develop/quick-reference/changelog
- aid: streamlit:streamlit-apps-api
  name: Streamlit Apps API
  description: Manage Streamlit applications deployed on Community Cloud. Deploy, list, restart, and delete apps connected
    to GitHub repositories.
  humanURL: https://docs.streamlit.io/develop/api-reference
  baseURL: https://api.streamlit.io/v1
  tags:
  - Application
  tags_raw:
  - Apps
  properties:
  - type: OpenAPI
    url: openapi/streamlit-apps-api-openapi.yml
  - type: Documentation
    url: https://docs.streamlit.io/deploy/streamlit-community-cloud/manage-your-app
- aid: streamlit:streamlit-secrets-api
  name: Streamlit Secrets API
  description: Manage secrets for Streamlit applications. Secrets are environment variables securely injected into the application
    at runtime via st.secrets.
  humanURL: https://docs.streamlit.io/develop/api-reference
  baseURL: https://api.streamlit.io/v1
  tags:
  - Secrets
  properties:
  - type: OpenAPI
    url: openapi/streamlit-secrets-api-openapi.yml
  - type: Documentation
    url: https://docs.streamlit.io/deploy/streamlit-community-cloud/manage-your-app
- aid: streamlit:streamlit-workspaces-api
  name: Streamlit Workspaces API
  description: Manage Streamlit Community Cloud workspaces and their settings.
  humanURL: https://docs.streamlit.io/develop/api-reference
  baseURL: https://api.streamlit.io/v1
  tags:
  - Workspace
  tags_raw:
  - Workspaces
  properties:
  - type: OpenAPI
    url: openapi/streamlit-workspaces-api-openapi.yml
  - type: Documentation
    url: https://docs.streamlit.io/deploy/streamlit-community-cloud/manage-your-app
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/streamlit/overview
- type: Plans
  url: plans/streamlit-plans-pricing.yml
- type: RateLimits
  url: rate-limits/streamlit-rate-limits.yml
- type: FinOps
  url: finops/streamlit-finops.yml
- type: CapabilityMap
  url: capabilities/streamlit-capability-edges.yml
  name: Streamlit Business Capability Map
- type: AgenticAccess
  url: agentic-access/streamlit-agentic-access.yml
- type: TrustCenter
  url: security/streamlit-trust-center.yml
- type: DomainSecurity
  url: security/streamlit-domain-security.yml
- type: Authentication
  url: authentication/streamlit-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/streamlit
- type: Website
  url: https://streamlit.io
- type: Documentation
  url: https://docs.streamlit.io
- type: GitHub
  url: https://github.com/streamlit/streamlit
- type: Forums
  url: https://discuss.streamlit.io
- type: Blog
  url: https://blog.streamlit.io
- type: Gallery
  url: https://streamlit.io/gallery
- type: ChangeLog
  url: https://docs.streamlit.io/develop/quick-reference/changelog
- type: TermsOfService
  url: https://streamlit.io/terms-of-use
- type: PrivacyPolicy
  url: https://streamlit.io/privacy-policy
- type: Signup
  url: https://share.streamlit.io/signup
- type: PyPI
  url: https://pypi.org/project/streamlit/
- type: OpenAPI
  url: https://raw.githubusercontent.com/api-evangelist/streamlit/refs/heads/main/openapi/streamlit-cloud-openapi.yml
- type: JSONSchema
  url: https://raw.githubusercontent.com/api-evangelist/streamlit/refs/heads/main/json-schema/streamlit-app-schema.json
- type: JSONLDContext
  url: https://raw.githubusercontent.com/api-evangelist/streamlit/refs/heads/main/json-ld/streamlit-context.jsonld
- type: LlmsText
  url: https://docs.streamlit.io/llms.txt
- type: UsageTerms
  url: terms/streamlit-terms-of-service.yml
- type: Attestations
  url: compliance/streamlit-compliance.yml
- type: Eligibility
  url: eligibility/streamlit-eligibility.yml
- type: AIPreferences
  url: ai-preferences/streamlit-ai-preferences.yml
- type: DataLicense
  url: data-license/streamlit-data-license.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Streamlit API — frequently asked questions

Does Streamlit have an API?

Yes. APIs.io lists 4 APIs from Streamlit, including Streamlit Python API, Streamlit Apps API and Streamlit Secrets API, and 1 more.

Is there an OpenAPI specification for the Streamlit API?

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

How do I authenticate with the Streamlit API?

Streamlit uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Streamlit Authentication.

How much does the Streamlit API cost?

APIs.io lists 3 pricing plans for Streamlit, with each plan's price, limits and inclusions under Pricing on this page.

Is the Streamlit API ready for AI agents?

Streamlit has a Kin Score of 41.7 out of 100 (developing) and an Agent Readiness score of 19.6 (agent-aware), scored by API Evangelist on 2026-11-13.

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