Founder of a listed tool
Arvid Lunnemark
Co-founder, Anysphere (Cursor); left in 2025, named behind the Cursor Agent SDK listing on Anchor Terminal.
What Arvid builds
Cursor Agent SDK B · Agent frameworks & SDKs
Cursor's TypeScript framework for defining an agent as a folder of instructions, typed tools, skills, MCP connections and channels, testing it with evals, and running it on your own server or on Cursor's hosting.
Co-founder, Anysphere (Cursor); left in 2025, researched 27 October 2026 · the people behind it
Works with
- Aman Sanger Co-founder, Anysphere (Cursor)
- Michael Truell Co-founder and CEO, Anysphere (Cursor)
- Rustam Lalkaka Author of the Agent SDK launch post, Cursor
- Sualeh Asif Co-founder and CPO, Anysphere (Cursor)
Backed by
Andreessen Horowitz Thrive Capital OpenAI Jeff Dean Noam Brown Benchmark Accel DST Global Coatue NVIDIA Google
Questions
Who is Arvid Lunnemark?
Arvid Lunnemark co-founded Anysphere, the company behind Cursor, in 2022 with fellow MIT students and left in October 2025 to found Integrous Research, a safety-focused AI lab. Earlier he represented Sweden at the olympiads, winning gold at the 2018 International Mathematical Olympiad and silver at the 2017 International Olympiad in Informatics.
What does Anysphere, Inc. (Cursor), a SpaceX subsidiary make?
Anchor Terminal lists Cursor Agent SDK from Anysphere, Inc. (Cursor), a SpaceX subsidiary. Cursor's TypeScript framework for defining an agent as a folder of instructions, typed tools, skills, MCP connections and channels, testing it with evals, and running it on your own server or on Cursor's hosting.
Who has invested in Anysphere, Inc. (Cursor), a SpaceX subsidiary?
The sources our research read name Andreessen Horowitz, Thrive Capital, OpenAI, Jeff Dean, Noam Brown, Benchmark, Accel, DST Global, Coatue, NVIDIA and Google.
How are Arvid's tools graded?
Cursor Agent SDK is graded B, 63.6 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.
Sources (7)
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