Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

TraceRoot.AI

Active · The open-source platform that continuously improves your ai agents

WebsiteYC profile

Why it ranks

How the rank works
10signal of 100 · rising 7
  • went through YCProgram · this site+4
  • team of 4Team size · YC's directory+3.6
  • hiringHiring · Titles (titles.fru.dev), YC+2

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

Competitors

AIAcquiredContinueShared: coding agent, open, sourceYC S23San FranciscoStartup →AIOpenCodeShared: coding agent, open, sourceYC W21TorontoStartup →AIAdenShared: infrastructure, open, sourceYC W20San FranciscoStartup →AIBauplanShared: infrastructure, agent, productionSPC 2022San FranciscoStartup →AIFreebuffShared: coding agent, open, sourceYC F24San FranciscoStartup →OtherSkyPilotShared: open, sourceStartup →
Companies closest to TraceRoot.AI
Company
ContinueShared: coding agent, open, sourceYC S23AcquiredAI, Devtools
OpenCodeShared: coding agent, open, sourceYC W21ActiveAI, Devtools
AdenShared: infrastructure, open, sourceYC W20ActiveAI, Devtools
BauplanShared: infrastructure, agent, productionSPC 2022Not statedAI, Devtools
FreebuffShared: coding agent, open, sourceYC F24ActiveAI, Devtools
SkyPilotnot in a program hereShared: open, sourceElsewhereOther

Adjacent

DataBaserowShared: open, sourceSeedcamp 2020Startup →AIAcquiredVocodeShared: open, sourceYC W23San FranciscoStartup →Developer toolsCodeYamShared: infrastructure, shipSPC 2021DenverStartup →OtherImpruver, IncShared: improvementAlchemist Class 26AtlantaStartup →Developer toolsAppwriteShared: open, sourceSeedcamp 2020Startup →
Companies next to TraceRoot.AI
Company
BaserowShared: open, sourceSeedcamp 2020Not statedData, Devtools
VocodeShared: open, sourceYC W23AcquiredAI, Devtools
CodeYamShared: infrastructure, shipSPC 2021Not statedDevtools
Impruver, IncShared: improvementAlchemist Class 26Not statedOther
AppwriteShared: open, sourceSeedcamp 2020Not statedDevtools

Also from S25 in AI

All of S25
AIMagnitudeRun open models as fast as your hardware allowsYC S25San FranciscoStartup →AIManufactCloud infrastructure for MCP servers and Claude / ChatGPT plugins.YC S25San FranciscoStartup →AICactus ComputeAutomation Foundation Models For Tiny DevicesYC S25San FranciscoStartup →AIDedalus LabsPersistent computers for AI agentsYC S25San FranciscoStartup →AIKERNELCrazy fast, open source infra for AI agents to use the InternetYC S25San FranciscoStartup →AIstagewiseThe makers of Klex Bots, your own team of digital coworkers.YC S25Startup →
Company
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
Cactus ComputeAutomation Foundation Models For Tiny Devicesteam of 8ActiveAI, Devtools
Dedalus LabsPersistent computers for AI agentsteam of 8hiringActiveAI, Devtools
KERNELCrazy fast, open source infra for AI agents to use the Internetteam of 22ActiveAI, Devtools
stagewiseThe makers of Klex Bots, your own team of digital coworkers.team of 3ActiveAI, Devtools

Founders

  • Xinwei HeFounder/CEO

About TraceRoot.AI

Open source braintrust alternative. Find the patterns in your agent's production issues. Ship verified fixes with your coding agent.

YC batch
S25 · Summer 2025
Status, per YC
Active
Category
AI, Developer tools
Team size
4
Location
San Francisco, CA, USA
Founded
2025
Checked
7h ago

YC tags: Developer Tools, Open Source, Infrastructure, AI

Changes seen

One-linerNov 9, 2026

Rewrote its one-liner; it read "Open Source AI Agent Improvement Platform"

Source ↗
TagsOct 19, 2026

Newly tagged AI; no longer tagged Artificial Intelligence.

Source ↗
One-linerOct 15, 2026

Rewrote its one-liner; it read "Open source self-improving layer for AI agents"

Source ↗
Team sizeOct 5, 2026

Team went from 3 to 4 people.

Source ↗
TagsOct 5, 2026

Newly tagged Artificial Intelligence and Open Source; no longer tagged AI.

Source ↗
RegionsOct 5, 2026

Now lists the region Remote and Partly Remote.

Source ↗

TraceRoot.AI in S25: 166 companies, 92% AI

LinkedIn

TraceRoot.AI: questions

Which YC batch was TraceRoot.AI in?

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

Is TraceRoot.AI still active?

Y Combinator lists TraceRoot.AI as active.

Who founded TraceRoot.AI?

TraceRoot.AI's founders, as listed on its YC page: Xinwei He (Founder/CEO).

Where is TraceRoot.AI based?

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