Syntropy is a Y Combinator W26 company building an autonomous coding agent designed for complex, long-horizon development tasks. Users describe features and the system delivers production-ready pull requests with full testing, removing the need for manual prompt management and terminal supervision. It targets engineering teams that want to delegate substantial coding work to an agent. Syntropy is based in the San Francisco Bay Area and was founded in 2025.
Syntropy
ActiveThe agentic coding app for complex tasks
Total raised
$500K
1 round
Stage
Seed
Jan 2026
Team
1-10
since 2026
Pricing
—
Founded
2026
San Francisco, United States
Agent-ready
—
Autonomous coding agent for complex, long-horizon tasks
Feature-description input that ships production-ready pull requests
Full automated testing of delivered code
No manual prompt management required
No terminal supervision required
Handling of substantial, multi-step development work
Delegation of long-running engineering tasks to the agent
End-to-end workflow from description to PR
12/100
Early
MCP server
Public API
Webhooks
OAuth 2.0
SDKs
No public agent surfaces detected yet.
Jan 2026 Seed $500K ● Y Combinator
Capital network
$500K raised ·1 backer·10 network links
- Backers1
- Shared portfoliocompanies these backers also fund
- Extended networkfunds that co-invest alongside them
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- What is Syntropy?
- Syntropy is an autonomous coding agent for complex, long-horizon development tasks where users describe features and it ships production-ready, fully tested pull requests.
- Do I have to manage prompts or terminals?
- No. Syntropy removes the need for manual prompt management and terminal supervision.
- Who is Syntropy for?
- It targets engineering teams that want to delegate substantial coding work to an autonomous agent.
- Does Syntropy test its code?
- Yes. It delivers production-ready pull requests with full testing as part of its output.
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