YC Spring 2026 (P26) company

Replicas

Run any coding agent harness in the cloud

b2bengineering, product and designopen source21 public signals

About Replicas

Replicas is a background coding agent that allows you to delegate tasks to Claude Code or Codex from Slack, Linear, GitHub, and more. Each task works inside of a sandboxed virtual machine, allowing teams to heavily parallelize work and burn through tickets. Replicas agents output higher quality PRs via feedback loops - each task automatically is notified and fixes CI failures and reads all code reviews. With Environments, engineering teams can configure agents to run their entire codebase locally, verify its work, and provide preview URLs.

Public traction evidence

Each signal links to the public source used for attribution.

  1. X

    I joined Y Combinator with 14 users, building a dev tool for myself. Then @SaaiArora joined as CTO, and we started growing and shipping 2x faster. It forced us to rebuild product and infra from the ground up for teams, not solo devs. We are ending the batch with >300k agent Show more

    I joined Y Combinator with 14 users, building a dev tool for myself. Then @SaaiArora joined as CTO, and we started growing and shipping 2x faster. It forced us to rebuild product and infra from the ground up for teams, not solo devs. We are ending the batch with >300k agent...

  2. LinkedIn

    A month and a half ago, I dropped out of Waterloo.

    A month and a half ago, I dropped out of Waterloo. The founder explicitly names Replicas. The body discusses YC P26 Demo Day and the product. Visible metrics: 204 likes, 204 reactions, 24 comments.

  3. LinkedIn

    This past Tuesday, Y Combinator invited us...

    This past Tuesday, Y Combinator invited us... The founder explicitly says he demoed Replicas. The post ties the demo and product to Y Combinator. Visible metrics: 270 likes, 270 reactions, 18 comments.

  4. X

    A month ago I dropped out of Waterloo and turned down a job offer to join @tryreplicas as CTO Last week @connortbot and I presented at YC P26 demo day Best decision I've made YC compresses years of lessons into weeks, and joining mid-batch only amplified it. The founders Show more

    A month ago I dropped out of Waterloo and turned down a job offer to join @tryreplicas as CTO Last week @connortbot and I presented at YC P26 demo day Best decision I've made YC compresses years of lessons into weeks, and joining mid-batch only amplified it. The founders Show...

  5. X

    https://t.co/QT5NExSPgT

    https://t.co/QT5NExSPgT

  6. X

    i dont think this was a good idea

    i dont think this was a good idea

  7. X

    Crazy to see how far the UI has come for replicas

    Crazy to see how far the UI has come for replicas

  8. X

    New UI for picking a harness in @tryreplicas

    New UI for picking a harness in @tryreplicas