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

6.7/100 minimal ▬ flat Agent 0/100 human only saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company AI Agents Agent Testing Agent Evaluation ObservabilityStaging EnvironmentsBacktesting LLMOps Y Combinator Artificial Intelligence

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 6.7/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.0 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.7 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. 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. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Chronicle Labs Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

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
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
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
- LLMOps
- Y Combinator
- Artificial Intelligence
tags_raw:
- 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

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