Stackexchange Plans Pricing
The public Stack Exchange API v2.3 is free to use for both commercial and non-commercial applications under the Stack Exchange API Terms of Use. Anonymous (no-key) callers get 300 requests per IP per day; registering a free app on stackapps.com and sending the resulting `key` parameter raises the daily quota to 10,000 requests per IP. Stack Overflow for Teams is a separate paid product with seat-based and tiered pricing for private workspaces; the Stack Overflow MCP beta server is currently free to use up to 100 calls per user per day. Always consult the provider's pricing pages for current numbers — values below are documented behavior captured from api.stackexchange.com but not freshly reconciled against the live page.
Stackexchange Plans Pricing is the machine-readable pricing-plan profile for Stack Exchange on the APIs.io network, conforming to the API Commons Plans specification.
It defines 3 plans, covering freemium and tiered tiers, with named plans including Public API (Free), Stack Overflow MCP (Beta), Stack Overflow for Teams.
Tagged areas include Q And A, Developer Community, Knowledge API, Stack Overflow, and Free Tier.
Plans
Free public access to the Stack Exchange API v2.3 across all 180+ Q&A sites. No key required; commercial use permitted under the API Terms of Use.
- Read access to questions, answers, comments, users, tags, badges, sites
- OAuth 2.0 for write operations
- Custom response filters
- Vectorized id fetch (up to 100 ids per call)
- Per-site or network-wide queries via the site parameter
Official Stack Overflow MCP server hosted by Stack Exchange. Currently in beta with a per-user daily cap; free during the beta period.
- Search Stack Overflow questions and answers
- Retrieve full conversation threads
- Ground LLM responses in community-verified content
- OAuth onboarding with Stack Overflow account
Paid SaaS product offering private Stack Overflow instances for organizations. Pricing is seat- and tier-based (Basic, Business, Enterprise) with custom Enterprise contracts. See https://stackoverflow.co/teams/pricing/ for current per-seat numbers.
- Private Q&A workspace
- Stack Overflow for Teams API v3
- TypeScript SDK
- Terraform Provider
- Backstage Plugin
- LangChain Integration
Sources
- https://api.stackexchange.com/docs
- https://api.stackexchange.com/docs/throttle
- https://stackapps.com/apps/oauth/register
- https://stackoverflow.co/teams/pricing/
- https://github.com/StackExchange/Stack-MCP
Work with this as data
Every plan 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 plans
4 MCP tools reach this
find_plansBrowse and filter every plan in the catalog.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.
Call it yourself
curl for this page
curl "https://apis.io/api/v1/plans/stackexchange-plans-pricing"curl "https://apis.io/api/v1/plans?limit=25"Discovery needs no key. Ratings and market analysis are Pro.