ContinuityStart building
NEWCounterfactual Change Network↗The change infrastructure

Software that
survives change.

Continuity predicts what code and API changes will break, repairs affected systems inside their own environments, and proves they are safe before release.

Start building ↗Run the simulationBook a Call
LOCAL-FIRSTMODEL-AGNOSTICOFFLINE-VERIFIABLE
Illustrative simulation
PROPOSED CHANGEPOST /v1/jobsbecomesPOST /v2/runs
TypeScript SDKchecks passed
verified
Billing servicechecks passed
verified
Python workerpatch ready
repairing
Legacy clientapproval required
blocked
RUNS INSIDE CUSTOMER BOUNDARY
✓
Evidence readySigned · offline-verifiable

Methods before metrics.

OPEN FORMATSREPRODUCIBLE EVALUATIONSCUSTOMER-OWNED VERIFICATION
PROPOSEDSIMULATEDREPAIREDVERIFIED
〉 Product catalog[ 01 / 08 ]
One continuity layer

All the pieces to make change survivable.

Every surface shares the same local engine, permission model, and evidence contract.

MAP

Compatibility Graph

A living view of contracts, dependencies, and real integration paths.

CHANGE
API
SDK
APP
JOB
Compatibility mapped locally
〉 How it works[ 02 / 08 ]
Closed-loop change

From unknown risk to signed evidence.

01

Scan

Map contracts and real usage.

02

Simulate

Replay the proposed change locally.

03

Repair

Preview the smallest deterministic patch.

04

Verify

Run builds and checks you already trust.

05

Attest

Sign the outcome for offline verification.

〉 Interfaces[ 03 / 08 ]
Developer quick start

One engine. Every interface.

The examples below match the implemented local CLI. Repair previews by default and requires both flags before writing.

continuity — local
$ continuity init
$ continuity scan
✓ Compatibility graph created locally
$ continuity simulate --change openapi-v2.json
! Affected integrations found · review required
$ continuity repair --change openapi-v2.json
✓ Dry-run patch ready
$ continuity repair --change openapi-v2.json --apply --approve
$ continuity verify
$ continuity export --change openapi-v2.json
01
CLI

Terminal-native local workflow

↗02
MCP

Permissioned tools for agents

↗03
API

Provider and team coordination

↗
〉 Research[ 04 / 08 ]
ChangeBench

Proof that can be reproduced.

Fixtures, commands, raw output, and failure definitions come before any public score.

Read the methodology →
PUBLIC RESULT STATUSMethodology active
01Contract changesfixture implemented
02Behavior changesresults pending
03Adversarial safetyresults pending
No comparative score is claimed.
Compatibility intelligence

A live map of what change touches.

Contracts become a graph. Risk becomes visible. Every repair stays tied to the system and verification that produced it.

CHANGEv2
SDK
API
JOB
APP
EDGE
4 verified 1 review
〉 Use cases[ 05 / 08 ]
Counterfactual Change Network

Test tomorrow’s change against today’s integrations.

Consumers execute locally. Providers receive only policy-approved compatibility outcomes.

FOR DEVELOPERS

Repair dependency and API changes without handing your repository to another service.

Local CLI · dry-run repair · signed evidence

Developers
〉 Deployment[ 06 / 08 ]
Deploy where the code lives

One protocol. Four boundaries.

01

Local

Laptop or secure workstation

02

Hosted

Managed coordination layer

03

Private cloud

Inside your cloud account

04

Disconnected

Offline capsule and evidence transfer

〉 Trust architecture[ 07 / 08 ]
A boundary, not a badge

Your code stays yours.

Continuity coordinates change without silently expanding what a model, provider, or hosted service can see or modify.

Explore the security model →
CUSTOMER ENVIRONMENTSourceTestsPolicyLocal engine
approved metadata →
HOSTED CONTROL PLANECoordinationRegistryEvidence
〉 Pricing[ 08 / 08 ]
Simple entry. Infrastructure depth.

Start locally. Scale when the network matters.

Free
$0

Learn the workflow

  • 3 projects
  • 10 simulations / month
  • Local CLI + MCP
Start free
Pro
$29/month

For individual builders

  • 25 projects
  • 100 simulations / month
  • Local CLI + MCP
Choose Pro
Max
$129/month

For power users

  • Unlimited projects
  • 500 simulations / month
  • Local CLI + MCP
Choose Max
Scale
$499/month

For production teams

  • Team policy and API
  • 2,500 simulations / month
  • Local CLI + MCP
Choose Scale
Enterprise
Designed with you

Private deployment and control for consequential systems.

  • SSO, policy, and evidence
  • Dedicated or disconnected
  • Customer-operated models
  • SLAs and deployment support
Book a Call
FAQ

The trust boundary, plainly.

Does Continuity upload source code?+

No. Scan, simulation, repair, and verification run locally by default. Only policy-approved metadata and evidence are synchronized.

What counts as verified?+

Your existing tests, builds, type checks, and policy decide. A model can propose a repair, but it cannot declare success.

Does it work with coding agents?+

Yes. The local MCP server exposes read tools and separately authorized write tools to compatible clients.

Can we use our own models?+

Yes. Model adapters are optional and customer-operated models are supported. Deterministic transforms run first.

How does usage billing work?+

Self-serve plans meter simulations and verified repairs with explicit limits. Enterprise capacity is scoped during a call.

Make change survivable

Know before release.
Repair before impact.

Start buildingBook a Call