Playgent provides sandboxes for AI agents, offering infrastructure to create high-fidelity sandbox environments. Its solution lets teams reproduce production failures safely by mocking tool calls, abstracting authentication, and initializing test data. Runs can be exported as OpenTelemetry traces for observability tools or RL pipelines. Playgent was part of Y Combinator's Summer 2025 batch and is based in San Francisco.
Playgent
ActiveSandboxes for AI agents
Total raised
$500K
1 round
Stage
Seed
Jan 2025
Team
1-10
since 2025
Pricing
—
Founded
2025
San Francisco, United States
Agent-ready
—
High-fidelity sandbox environments for AI agents
Reproduction of production failures safely
Mocking of tool calls during testing
Authentication abstraction for sandboxed runs
Test data initialization for repeatable scenarios
Export of runs as OpenTelemetry (OTel) traces
Integration with observability tools and RL pipelines
Y Combinator (Summer 2025) backing
12/100
Early
MCP server
Public API
Webhooks
OAuth 2.0
SDKs
No public agent surfaces detected yet.
Jan 2025 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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Genesis Molecular AI
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- What is Playgent?
- Playgent provides high-fidelity sandbox environments for AI agents, letting teams reproduce production failures safely by mocking tool calls, abstracting authentication, and initializing test data.
- How does Playgent integrate with observability?
- Runs can be exported as OpenTelemetry traces for use in observability tools or RL pipelines.
- Who is Playgent for?
- It is built for teams running AI agents in production who need safe, repeatable environments for testing and debugging.
- Is Playgent backed by an accelerator?
- Yes, Playgent was part of Y Combinator's Summer 2025 batch and is based in San Francisco.
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