Stack Overflow

Stack Overflow is the world's largest question-and-answer community for developers, with over 23 million questions on programming, software development, and technology topics. Stack Overflow offers two API products: the public Stack Exchange API v2.3 for read/write access to Stack Overflow questions, answers, comments, users, tags, and badges; and the Stack Overflow for Teams API v3, a private team knowledge-base API with endpoints for questions, answers, articles, user groups, and SME management.

Stack Overflow publishes 10 API contracts indexed on the APIs.io network, including Answers API, Articles API, Badges API, and 7 more. Tagged areas include Answers, Code, Developer Community, Developer Tools, and Knowledge Base.

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

Stack Overflow’s developer surface includes authentication, engineering blog, signup flow, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

37.2/100 thin ▬ flat Agent 29/100 agent ready saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

2 published contracts

Answers Code Developer Community Developer Tools Knowledge Base Programming Q&A QuestionsStack Overflow

What this lets a business do 1

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

Knowledge Management

BC-830

AnswersArticlesQuestionsSMEsTags

GET /teams/{team}/questions POST /teams/{team}/questions GET /teams/{team}/questions/{id} GET /teams/{team}/questions/{id}/answers

Kin Score

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

Composite quality — 37.2/100 · thin

Contract Quality 10.4 / 19

Developer Ergonomics 3.6 / 15

Access Clarity 4.7 / 15

Operational Transparency 1.0 / 10

Contract Governance 2.5 / 9

Discoverability 4.6 / 8

Regulatory Posture 4.6 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 29/100 · agent ready

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 7 / 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 6 / 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/.

Show this score on your site.

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Raise your score.

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
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
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
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

7 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 23.8 — up to +15.2 composite points
Access Clarity scores 31.6 — up to +13.7 composite points
Operational Transparency scores 10.5 — up to +11.6 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/stack-overflow/apis.yml: open an issue on github.com/api-evangelist/stack-overflow 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 →

Stack Overflow is an area vendor: providers adopt it to run part of their developer surface. This is the Kin Score checks its features can move for a provider that adopts it, what each one really earns, and what it earns nothing for.

communitycapability map2 features checked 2026-09-25 · rubric v0.22.0

A Stack Overflow tag earns a provider one check, support_channel (2 points): half when declared as Community, which the pointer probe does not read, and full when declared as Support, where stackoverflow.com’s bot challenge grades as live. The tag and any Collective sit on Stack Overflow’s domain and are run by its community: new users cannot create tags, and the listed Collectives say they are “organized and managed by the Stack Overflow community”. Nothing else on the rubric moves. Stack Overflow is also undetectable, since no registry key reads it.

Developer Ergonomics1.0 of 42 pts

Check	Earns	Through
Support channeldiscounted Developer Ergonomics195 providers whose only support-class pointer is Community all score support_channel partial (“pointer liveness 0.5”), measured 2026-09-25.	1.0 of 2	Technology tag and tag wiki

Across 8977 providers that publish a contract, adopting Stack Overflow would move 3701. Median lift: composite +0.0 (90th percentile +0.5), agent readiness +0.0 (+0.0). Conditional rows excluded.

What Stack Overflow ships that earns nothing (1)

Collectives — Articles in a Collective or on stackoverflow.com are posts on Stack Overflow’s site, not a provider blog; a Blog pointer to them would misname what they are.

A model, not a score. Adopting this vendor changes a provider's Kin Score only when the provider publishes the resulting artifacts on its own surface; nothing here writes a score, and no sponsorship or partnership can. The rating is not for sale → · Full vendor facets artifact

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
IDE Extension Marketplaces (JetBrains, VS Code, Open VSX, Docker Verified Publishers, PyPI orgs)	builds-on	51.7	1	1
Infrastructure-as-Code Provider Registries (Terraform, OpenTofu, Pulumi)	builds-on	51.7	1	1
Backstage Plugin Directory	builds-on	51.7	1	1
Discourse Plugin Ecosystem	builds-on	51.7	1	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.

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 10

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

Stack Overflow Answers API

Operations for managing answers to questions in a Teams workspace.

Stack Overflow Articles API

Operations for managing knowledge articles in a Teams workspace.

Stack Overflow Badges API

Operations for retrieving badge information on Stack Overflow.

Stack Overflow Comments API

Operations for retrieving and writing comments on Stack Overflow posts.

Stack Overflow Questions API

Operations for managing questions in a Stack Overflow for Teams workspace.

Stack Overflow Search API

Operations for searching Stack Overflow questions and content.

Stack Overflow SMEs API

Operations for managing Subject Matter Experts (SMEs) for tags in a Teams workspace.

Stack Overflow Tags API

Operations for managing tags in a Teams workspace.

Stack Overflow User Groups API

Operations for managing user groups in a Teams workspace.

Stack Overflow Users API

Operations for managing users in a Teams workspace.

Scroll for all 10

Open Collections 12

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

Stack Overflow for Teams Answers API

OPEN COLLECTION

Stack Overflow for Teams Answers Articles API

OPEN COLLECTION

Stack Overflow for Teams Answers Badges API

OPEN COLLECTION

Stack Overflow for Teams Answers Comments API

OPEN COLLECTION

Stack Overflow for Teams API

OPEN COLLECTION

Stack Overflow for Teams Answers Questions API

OPEN COLLECTION

Stack Overflow for Teams Answers Search API

OPEN COLLECTION

Stack Overflow for Teams Answers SMEs API

OPEN COLLECTION

Stack Overflow for Teams Answers Tags API

OPEN COLLECTION

Stack Overflow for Teams Answers User Groups API

OPEN COLLECTION

Stack Overflow for Teams Answers Users API

OPEN COLLECTION

Stack Overflow API

OPEN COLLECTION

Scroll for all 12

Stack Overflow API pricing

Not yet checked against Stack Overflow'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 Stack Overflow's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Stack Overflow Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Stack Overflow Rate Limits

5 limits

RATE LIMITS

Service Levels 1

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

Stack Overflow

SLA

FinOps 1

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

Stack Overflow Finops

FINOPS

Semantic Vocabularies 1

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

Stack Overflow Context

27 classes · 4 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Stack Overflow — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

Stack Overflow API Rules

9 rules · 3 errors 6 warnings

SPECTRAL

JSON Schema 1

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

Stack Overflow Question

14 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Stack Overflow Question Structure

14 properties

JSON STRUCTURE

Examples 1

Example request and response payloads for these APIs.

Stack Overflow Get Questions Example

4 fields

EXAMPLE

Security Posture 2

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

Stack Overflow Authentication

http/oauth2 · 2 schemes

SECURITY

Stack Overflow Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Stack Overflow Scopes

3 scopes · authorizationCode

3 scopes

SCOPES

Agentic Access 1

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

Stack Overflow Agentic Access

37 operations · 8 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Signup

Signup

Documentation 1

Reference material describing how the API behaves

JSONSchema

JSONSchema

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

Vocabulary

Vocabulary

SpectralRules

SpectralRules

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

Authentication

OAuthScopes

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

TermsOfService

TermsOfService

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

VendorFacets

VendorFacets

Source (apis.yml)

aid: stack-overflow
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
specificationVersion: '0.23'
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: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/stack-overflow.png
name: Stack Overflow
description: 'Stack Overflow is the world''s largest question-and-answer community for developers, with over 23 million questions
  on programming, software development, and technology topics. Stack Overflow offers two API products: the public Stack Exchange
  API v2.3 for read/write access to Stack Overflow questions, answers, comments, users, tags, and badges; and the Stack Overflow
  for Teams API v3, a private team knowledge-base API with endpoints for questions, answers, articles, user groups, and SME
  management.'
url: https://raw.githubusercontent.com/api-evangelist/stack-overflow/refs/heads/main/apis.yml
tags:
- Answers
- Code
- Developer Community
- Developer Tools
- Knowledge Base
- Programming
- Q&A
- Questions
- Stack Overflow
created: '2026-05-02'
modified: '2026-05-19'
apis:
- aid: stack-overflow:stack-overflow-answers-api
  name: Stack Overflow Answers API
  description: Operations for managing answers to questions in a Teams workspace.
  humanURL: https://api.stackexchange.com/
  baseURL: https://api.stackexchange.com/2.3
  tags:
  - Answers
  properties:
  - type: OpenAPI
    url: openapi/stack-overflow-answers-api-openapi.yml
  - type: Documentation
    url: https://api.stackexchange.com/docs
  - type: TermsOfService
    url: https://stackexchange.com/legal/api-terms-of-use
  - type: RateLimits
    url: https://api.stackexchange.com/docs/throttle
  - type: Signup
    url: http://stackapps.com/apps/oauth/register
  - type: Documentation
    url: https://api.stackoverflowteams.com/docs
  - type: Blog
    url: https://stackoverflow.blog/2023/05/17/stack-overflow-for-teams-api-v3/
- aid: stack-overflow:stack-overflow-articles-api
  name: Stack Overflow Articles API
  description: Operations for managing knowledge articles in a Teams workspace.
  humanURL: https://api.stackexchange.com/
  baseURL: https://api.stackexchange.com/2.3
  tags:
  - Articles
  properties:
  - type: OpenAPI
    url: openapi/stack-overflow-articles-api-openapi.yml
  - type: Documentation
    url: https://api.stackexchange.com/docs
  - type: TermsOfService
    url: https://stackexchange.com/legal/api-terms-of-use
  - type: RateLimits
    url: https://api.stackexchange.com/docs/throttle
  - type: Signup
    url: http://stackapps.com/apps/oauth/register
  - type: Documentation
    url: https://api.stackoverflowteams.com/docs
  - type: Blog
    url: https://stackoverflow.blog/2023/05/17/stack-overflow-for-teams-api-v3/
- aid: stack-overflow:stack-overflow-badges-api
  name: Stack Overflow Badges API
  description: Operations for retrieving badge information on Stack Overflow.
  humanURL: https://api.stackexchange.com/
  baseURL: https://api.stackexchange.com/2.3
  tags:
  - Badges
  properties:
  - type: OpenAPI
    url: openapi/stack-overflow-badges-api-openapi.yml
  - type: Documentation
    url: https://api.stackexchange.com/docs
  - type: TermsOfService
    url: https://stackexchange.com/legal/api-terms-of-use
  - type: RateLimits
    url: https://api.stackexchange.com/docs/throttle
  - type: Signup
    url: http://stackapps.com/apps/oauth/register
  - type: Documentation
    url: https://api.stackoverflowteams.com/docs
  - type: Blog
    url: https://stackoverflow.blog/2023/05/17/stack-overflow-for-teams-api-v3/
- aid: stack-overflow:stack-overflow-comments-api
  name: Stack Overflow Comments API
  description: Operations for retrieving and writing comments on Stack Overflow posts.
  humanURL: https://api.stackexchange.com/
  baseURL: https://api.stackexchange.com/2.3
  tags:
  - Comments
  properties:
  - type: OpenAPI
    url: openapi/stack-overflow-comments-api-openapi.yml
  - type: Documentation
    url: https://api.stackexchange.com/docs
  - type: TermsOfService
    url: https://stackexchange.com/legal/api-terms-of-use
  - type: RateLimits
    url: https://api.stackexchange.com/docs/throttle
  - type: Signup
    url: http://stackapps.com/apps/oauth/register
  - type: Documentation
    url: https://api.stackoverflowteams.com/docs
  - type: Blog
    url: https://stackoverflow.blog/2023/05/17/stack-overflow-for-teams-api-v3/
- aid: stack-overflow:stack-overflow-questions-api
  name: Stack Overflow Questions API
  description: Operations for managing questions in a Stack Overflow for Teams workspace.
  humanURL: https://api.stackexchange.com/
  baseURL: https://api.stackexchange.com/2.3
  tags:
  - Questions
  properties:
  - type: OpenAPI
    url: openapi/stack-overflow-questions-api-openapi.yml
  - type: Documentation
    url: https://api.stackexchange.com/docs
  - type: TermsOfService
    url: https://stackexchange.com/legal/api-terms-of-use
  - type: RateLimits
    url: https://api.stackexchange.com/docs/throttle
  - type: Signup
    url: http://stackapps.com/apps/oauth/register
  - type: Documentation
    url: https://api.stackoverflowteams.com/docs
  - type: Blog
    url: https://stackoverflow.blog/2023/05/17/stack-overflow-for-teams-api-v3/
- aid: stack-overflow:stack-overflow-search-api
  name: Stack Overflow Search API
  description: Operations for searching Stack Overflow questions and content.
  humanURL: https://api.stackexchange.com/
  baseURL: https://api.stackexchange.com/2.3
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/stack-overflow-search-api-openapi.yml
  - type: Documentation
    url: https://api.stackexchange.com/docs
  - type: TermsOfService
    url: https://stackexchange.com/legal/api-terms-of-use
  - type: RateLimits
    url: https://api.stackexchange.com/docs/throttle
  - type: Signup
    url: http://stackapps.com/apps/oauth/register
  - type: Documentation
    url: https://api.stackoverflowteams.com/docs
  - type: Blog
    url: https://stackoverflow.blog/2023/05/17/stack-overflow-for-teams-api-v3/
- aid: stack-overflow:stack-overflow-smes-api
  name: Stack Overflow SMEs API
  description: Operations for managing Subject Matter Experts (SMEs) for tags in a Teams workspace.
  humanURL: https://api.stackexchange.com/
  baseURL: https://api.stackexchange.com/2.3
  tags:
  - Small Business
  tags_raw:
  - SMEs
  - SME
  properties:
  - type: OpenAPI
    url: openapi/stack-overflow-smes-api-openapi.yml
  - type: Documentation
    url: https://api.stackexchange.com/docs
  - type: TermsOfService
    url: https://stackexchange.com/legal/api-terms-of-use
  - type: RateLimits
    url: https://api.stackexchange.com/docs/throttle
  - type: Signup
    url: http://stackapps.com/apps/oauth/register
  - type: Documentation
    url: https://api.stackoverflowteams.com/docs
  - type: Blog
    url: https://stackoverflow.blog/2023/05/17/stack-overflow-for-teams-api-v3/
- aid: stack-overflow:stack-overflow-tags-api
  name: Stack Overflow Tags API
  description: Operations for managing tags in a Teams workspace.
  humanURL: https://api.stackexchange.com/
  baseURL: https://api.stackexchange.com/2.3
  tags:
  - Tags
  properties:
  - type: OpenAPI
    url: openapi/stack-overflow-tags-api-openapi.yml
  - type: Documentation
    url: https://api.stackexchange.com/docs
  - type: TermsOfService
    url: https://stackexchange.com/legal/api-terms-of-use
  - type: RateLimits
    url: https://api.stackexchange.com/docs/throttle
  - type: Signup
    url: http://stackapps.com/apps/oauth/register
  - type: Documentation
    url: https://api.stackoverflowteams.com/docs
  - type: Blog
    url: https://stackoverflow.blog/2023/05/17/stack-overflow-for-teams-api-v3/
- aid: stack-overflow:stack-overflow-user-groups-api
  name: Stack Overflow User Groups API
  description: Operations for managing user groups in a Teams workspace.
  humanURL: https://api.stackexchange.com/
  baseURL: https://api.stackexchange.com/2.3
  tags:
  - User Groups
  properties:
  - type: OpenAPI
    url: openapi/stack-overflow-user-groups-api-openapi.yml
  - type: Documentation
    url: https://api.stackexchange.com/docs
  - type: TermsOfService
    url: https://stackexchange.com/legal/api-terms-of-use
  - type: RateLimits
    url: https://api.stackexchange.com/docs/throttle
  - type: Signup
    url: http://stackapps.com/apps/oauth/register
  - type: Documentation
    url: https://api.stackoverflowteams.com/docs
  - type: Blog
    url: https://stackoverflow.blog/2023/05/17/stack-overflow-for-teams-api-v3/
- aid: stack-overflow:stack-overflow-users-api
  name: Stack Overflow Users API
  description: Operations for managing users in a Teams workspace.
  humanURL: https://api.stackexchange.com/
  baseURL: https://api.stackexchange.com/2.3
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/stack-overflow-users-api-openapi.yml
  - type: Documentation
    url: https://api.stackexchange.com/docs
  - type: TermsOfService
    url: https://stackexchange.com/legal/api-terms-of-use
  - type: RateLimits
    url: https://api.stackexchange.com/docs/throttle
  - type: Signup
    url: http://stackapps.com/apps/oauth/register
  - type: Documentation
    url: https://api.stackoverflowteams.com/docs
  - type: Blog
    url: https://stackoverflow.blog/2023/05/17/stack-overflow-for-teams-api-v3/
common:
- type: Plans
  url: plans/stack-overflow-plans-pricing.yml
- type: RateLimits
  url: rate-limits/stack-overflow-rate-limits.yml
- type: FinOps
  url: finops/stack-overflow-finops.yml
- type: CapabilityMap
  url: capabilities/stack-overflow-capability-edges.yml
  name: Stack Overflow Business Capability Map
- type: VendorFacets
  url: vendor-facets/stack-overflow-vendor-facets.yml
- type: AgenticAccess
  url: agentic-access/stack-overflow-agentic-access.yml
- type: DomainSecurity
  url: security/stack-overflow-domain-security.yml
- type: Authentication
  url: authentication/stack-overflow-authentication.yml
- type: OAuthScopes
  url: scopes/stack-overflow-scopes.yml
- type: GitHubOrganization
  url: https://github.com/stackexchange
- type: LinkedIn
  url: https://www.linkedin.com/company/stack-overflow
- url: https://stackoverflow.com
  type: Website
- url: https://stackoverflow.blog/
  type: Blog
- url: https://api.stackexchange.com/docs/authentication
  type: Authentication
- url: http://stackapps.com/apps/oauth/register
  type: Signup
- url: https://stackexchange.com/legal/api-terms-of-use
  type: TermsOfService
- url: json-ld/stack-overflow-context.jsonld
  type: JSONLD
- url: json-schema/stack-overflow-question-schema.json
  type: JSONSchema
- url: vocabulary/stack-overflow-vocabulary.yml
  type: Vocabulary
- url: rules/stack-overflow-rules.yml
  type: SpectralRules

Stack Overflow API — frequently asked questions

Does Stack Overflow have an API?

Yes. APIs.io lists 10 APIs from Stack Overflow, including Stack Overflow Answers API, Stack Overflow Articles API and Stack Overflow Badges API, and 7 more.

Is there an OpenAPI specification for the Stack Overflow API?

Yes. APIs.io indexes 10 OpenAPI specifications for Stack Overflow, each linked for download from this page.

How do I authenticate with the Stack Overflow API?

Stack Overflow uses bearer-token authentication (http/oauth2 · 2 schemes). The details are profiled on APIs.io as Stack Overflow Authentication.

How much does the Stack Overflow API cost?

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

Is the Stack Overflow API ready for AI agents?

Stack Overflow has a Kin Score of 37.2 out of 100 (thin) and an Agent Readiness score of 28.6 (agent-ready), scored by API Evangelist on 2026-11-06.

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Stack Overflow

What this lets a business do 1

What adopting Stack Overflow moves on the Kin Score 1

Markets this provider is in provisional

Standards implemented 2

APIs 10

Open Collections 12

Stack Overflow API pricing

Rate limits

Pricing Plans 1

Rate Limits 1

Service Levels 1

FinOps 1

Semantic Vocabularies 1

Spectral Rules 2

JSON Schema 1

JSON Structure 1

Examples 1

Security Posture 2

Scopes 1

Agentic Access 1

Get Started 1

Documentation 1

Agent Surfaces 1

Design & Contract 3

Build 1

Access & Security 4

Operate 1

Commercial 3

Company 3

Other 2

Source (apis.yml)

Stack Overflow API — frequently asked questions

Does Stack Overflow have an API?

Is there an OpenAPI specification for the Stack Overflow API?

How do I authenticate with the Stack Overflow API?

How much does the Stack Overflow API cost?

Is the Stack Overflow API ready for AI agents?

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