Microsoft Teams SDK vs Pi Agent Core
Microsoft Teams SDK and Pi Agent Core are both agent frameworks for TypeScript. Microsoft Teams SDK is published by Microsoft and Pi Agent Core by Earendil. On GitHub, Pi Agent Core has 117,586 stars and Microsoft Teams SDK has 731. Both were last active in Oct 2026. The table lines up where they differ (publisher, GitHub stars, weekly downloads and category) and has the install commands for both. Everything here comes from the listings' public sources and is refreshed daily. Microsoft Teams SDK describes itself as: SDK for building Microsoft Teams apps and AI agents in TypeScript, C# and Python, with a CLI that scaffolds new agents. Pi Agent Core: Minimal TypeScript agent harness with an agent runtime, multi-provider LLM API, terminal UI and coding agent CLI that users extend themselves. Licenses: Microsoft Teams SDK MIT, Pi Agent Core MIT.
Updated Oct 26, 2026 · Built from catalog data; how we rank and grade
Microsoft Teams SDK
Microsoft
SDK for building Microsoft Teams apps and AI agents in TypeScript, C# and Python, with a CLI that scaffolds new agents.
Pi Agent Core
Earendil
Minimal TypeScript agent harness with an agent runtime, multi-provider LLM API, terminal UI and coding agent CLI that users extend themselves.
Who should pick which
- Pick Microsoft Teams SDK if you work in C# and Python.
- Pi Agent Core has the larger community: 117,586 GitHub stars against 731.
From listing data only. We don't pick a winner on security beyond the grades; read how grades work.
Side by side
| Fact | Microsoft Teams SDK | Pi Agent Core |
|---|---|---|
| Type | Harness | Harness |
| Publisher | Microsoft | Earendil |
| License | MIT | MIT |
| Pricing | Not stated | Not stated |
| Runs | Not stated | Not stated |
| Auth | Not stated | Not stated |
| Hosts supported | Not stated | Not stated |
| Tools | Not listed yet | Not listed yet |
| Security grade | –Security: not graded yet | –Security: not graded yet |
| Freshness grade | AFreshness: A | AFreshness: A |
| GitHub stars | 731 | 117,586 |
| Weekly downloads | 497,821 | 5,107,393 |
| Last release | Oct 9, 2026 | Oct 21, 2026 |
| Last activity | Oct 23, 2026 | Oct 24, 2026 |
Facts from each listing's public sources, checked daily. Tool lists arrive with tool scans.
Install
Microsoft Teams SDK
npm install @microsoft/teams.apps
Pi Agent Core
npm install @earendil-works/pi-agent-core
Also consider
- 0.853score
LlamaIndex
LlamaIndex
Open-source Python toolkit for RAG and agents over your own data, with event-driven workflows and 300+ integration packages.
HarnessAFreshness: A★ 52.6K↓ 1.4M/wk - 0.753score
LangChain
LangChain
Python framework of interoperable components and integrations for building agents and LLM apps, with LangGraph and Deep Agents layered above it.
HarnessAFreshness: A★ 148.4K↓ 37.3M/wk - 0.732score
CrewAI
CrewAI
Open-source Python framework for multi-agent workflows, with role-based Crews and event-driven Flows.
HarnessAFreshness: A★ 60.1K↓ 644.6K/wk
Questions
- Is Microsoft Teams SDK or Pi Agent Core more popular?
- Pi Agent Core has more GitHub stars (117,586 against 731). Stars measure attention, not quality, so check freshness and docs too.
- Are Microsoft Teams SDK and Pi Agent Core open source?
- Yes: Microsoft Teams SDK is MIT and Pi Agent Core is MIT.
Related
Cite this page
Microsoft Teams SDK vs Pi Agent Core. Agent Mart. https://agentmart.dev/compare/microsoft-teams-sdk-vs-pi-agent-core (last updated 2026-10-26)