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14,448 startups · 29 programs

Playgent

Active · Sandboxes for AI agents

WebsiteYC profile

Why it ranks

How the rank works
7signal of 100 · rising 5
  • went through YCProgram · this site+4
  • team of 2Team size · YC's directory+2.5

A sum of public facts, not a judgement and not investment advice.

Competitors

AIArchalShared: sandbox environment, infrastructure, sandboxesYC S26San FranciscoStartup →AIArga LabsShared: tool call, natural language, sandboxesYC X26San FranciscoStartup →AIRysticShared: high fidelity, environment, agentYC F26San FranciscoStartup →AILemmaShared: tool call, infrastructure, agentYC F25San FranciscoStartup →AIVerisShared: high fidelity, sandbox, environmentPlug and PlayUnited StatesStartup →
Companies closest to Playgent
Company
ArchalShared: sandbox environment, infrastructure, sandboxesYC S26ActiveAI, Devtools
Arga LabsShared: tool call, natural language, sandboxesYC X26ActiveAI, Devtools
RysticShared: high fidelity, environment, agentYC F26ActiveAI, Devtools
LemmaShared: tool call, infrastructure, agentYC F25ActiveAI, Data, Devtools
VerisShared: high fidelity, sandbox, environmentPlug and Play Not statedAI

Adjacent

AIAgnost AIShared: agent fail, data, userYC S26San FranciscoStartup →AICredal.aiShared: enterprise agent, mcp, dataYC W23New York CityStartup →OtherPulseShared: create highAntler 2023CanadaStartup →AIMarkerShared: enterprise agent, productionYC S26San FranciscoStartup →AIAlaiShared: create high, context, userYC W24San FranciscoStartup →
Companies next to Playgent
Company
Agnost AIShared: agent fail, data, userYC S26 +1ActiveAI, Data, Devtools
Credal.aiShared: enterprise agent, mcp, dataYC W23ActiveAI
PulseShared: create highAntler 2023Not statedOther
MarkerShared: enterprise agent, productionYC S26ActiveAI
AlaiShared: create high, context, userYC W24ActiveAI

Also from S25 in AI

All of S25
AIDedalus LabsPersistent computers for AI agentsYC S25San FranciscoStartup →AIKERNELCrazy fast, open source infra for AI agents to use the InternetYC S25San FranciscoStartup →AILilacWe sell GPUs.YC S25San FranciscoStartup →AILLM StatsIndependent AI evaluations labYC S25New York CityStartup →AIMagnitudeRun open models as fast as your hardware allowsYC S25San FranciscoStartup →AIManufactCloud infrastructure for MCP servers and Claude / ChatGPT plugins.YC S25San FranciscoStartup →
Company
Dedalus LabsPersistent computers for AI agentsteam of 8hiringActiveAI, Devtools
KERNELCrazy fast, open source infra for AI agents to use the Internetteam of 22ActiveAI, Devtools
LilacWe sell GPUs.team of 4ActiveAI, Devtools
LLM StatsIndependent AI evaluations labteam of 2ActiveAI, Devtools
MagnitudeRun open models as fast as your hardware allowsteam of 2ActiveAI, Devtools
ManufactCloud infrastructure for MCP servers and Claude / ChatGPT plugins.team of 5hiringActiveAI, Devtools

Founders

  • Neer JainFounder/CEO
  • Aniruddh SriramFounder/CTO

About Playgent

When enterprise agents fail in production, the conditions that caused the failure are critical: user state, data, tool calls, and context. Without a way to recreate these conditions, teams can't fix what broke. Playgent provides infrastructure to create high-fidelity sandbox environments for AI agents. Our environments come packaged as a single MCP url where tool calls are mocked, authentication is abstracted away, and test data can be initialized via natural language or JSON specifications. Teams can use Playgent to reproduce production failures in safe, scoped environments that accurately reconstruct state. Finally, export runs as OTel traces from Playgent's environment to plug directly into your observability tools or RL pipelines.

YC batch
S25 · Summer 2025
Status, per YC
Active
Category
AI, Developer tools
Team size
2
Location
San Francisco, CA, USA
Founded
2025
Checked
6h ago

YC tags: SaaS, Infrastructure, AI

Playgent in S25: 166 companies, 92% AI

LinkedIn

Playgent: questions

Which YC batch was Playgent in?

Playgent was in Y Combinator's Summer 2025 batch (S25).

Is Playgent still active?

Y Combinator lists Playgent as active.

Who founded Playgent?

Playgent's founders, as listed on its YC page: Neer Jain (Founder/CEO), Aniruddh Sriram (Founder/CTO).

Where is Playgent based?

Playgent lists San Francisco, CA, USA as its location on YC's directory.