Chronicle Labs

Chronicle Labs is a Y Combinator-backed (Spring 2026) company building infrastructure for teams running AI agents in production. The platform turns production data into staging environments: it reconstructs real end-to-end workflows from production data streams, generates test scenarios from those workflows, runs agents against replicated production environments (its Backtest Arena), and monitors live agents with autonomous fix and rollback. The pitch is to help engineering teams prove their AI agents work before they ship, replacing hand-built evals and "vibe-deploying" with backtesting against a team's actual operational reality. Typical customers run AI agents in customer service, payments, refunds, and other high-stakes workflows, and Chronicle Labs reports integrating with 100+ production tools. Founded in San Francisco by Ayman Saleh (CEO) and Rowan Zyadeh. At profiling time the product is accessed via a hosted web application behind sign-up; there is no public API, OpenAPI specification, or SDK, and the company publishes an llms.txt at its primary host.

Chronicle Labs is profiled on the APIs.io network. Tagged areas include Company, AI Agents, Agent Testing, Agent Evaluation, and Observability.

Chronicle Labs’ developer surface includes signup flow, support, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub

10.3/100 minimal ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyAI AgentsAgent TestingAgent EvaluationObservabilityStaging EnvironmentsBacktestingLLM OpsY CombinatorArtificial Intelligence

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 10.3/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.9 / 20

Commercial Clarity 2.6 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 4/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/chronicle-labs: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: chronicle-labs
name: Chronicle Labs
description: 'Chronicle Labs is a Y Combinator-backed (Spring 2026) company building infrastructure for teams running AI agents
  in production. The platform turns production data into staging environments: it reconstructs real end-to-end workflows from
  production data streams, generates test scenarios from those workflows, runs agents against replicated production environments
  (its Backtest Arena), and monitors live agents with autonomous fix and rollback. The pitch is to help engineering teams
  prove their AI agents work before they ship, replacing hand-built evals and "vibe-deploying" with backtesting against a
  team''s actual operational reality. Typical customers run AI agents in customer service, payments, refunds, and other high-stakes
  workflows, and Chronicle Labs reports integrating with 100+ production tools. Founded in San Francisco by Ayman Saleh (CEO)
  and Rowan Zyadeh. At profiling time the product is accessed via a hosted web application behind sign-up; there is no public
  API, OpenAPI specification, or SDK, and the company publishes an llms.txt at its primary host.'
url: https://raw.githubusercontent.com/api-evangelist/chronicle-labs/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
image: https://framerusercontent.com/images/eQyquoU7a6oSDASVNxovJDx70.png
tags:
- Company
- AI Agents
- Agent Testing
- Agent Evaluation
- Observability
- Staging Environments
- Backtesting
- LLM Ops
- Y Combinator
- Artificial Intelligence
apis: []
common:
- type: DomainSecurity
  url: security/chronicle-labs-domain-security.yml
- type: Website
  url: https://chronicle-labs.com
- type: SignUp
  url: https://www.app.chronicle-labs.com/signup
- type: Support
  url: https://chronicle-labs.com/book-call
- type: LLMsTxt
  url: llms/chronicle-labs-llms.txt
- type: WellKnown
  url: well-known/chronicle-labs-well-known.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence