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Agent Evidence Labs

Business Consistency/Business state observability

Know when your systems disagree before your customers do.

Continuously verify business truth across the APIs, SaaS tools and databases that run your company.

Join Cloud BetaView on GitHub

Open-source engine available now

continuous verification
entity cus_Q41mLp
Stripelive

subscription.status

ACTIVE

must
Product DBpg-main

entitlement.plan

FREE

evaluating invariant paid_customer_has_access_

A monitoring interface comparing Stripe subscription status ACTIVE against a product database entitlement plan of FREE, raising an invariant violation for paid_customer_has_access where the expected value was pro and the observed value was free.

Your infrastructure can be healthy while your business state is wrong.

Every green dashboard below was reported by systems that were each individually operational.
  • StripeACTIVE
    Product accessFREE
    violation
  • ShopifySHIPPED
    ERPNOT SHIPPED
    violation
  • HRDEPARTED
    GitHubACCESS ACTIVE
    violation

How it works

One pipeline from live systems to a verified answer.

read-only · no instrumentation

  1. 01—Connect

    Point the engine at the systems of record you already run. Read-only credentials, no agents in your app.

  2. 02—Define

    Write invariants as plain configuration. Each one states what must be true across systems.

  3. 03—Verify

    Live state is fetched and evaluated on a schedule. Nothing is inferred from event history.

  4. 04—Alert

    A violation carries the entity, the expected value and the observed value. No triage required.

An invariant is a rule about reality.

A condition in one system, a requirement in another. If the two ever stop agreeing, you hear about it with the exact values that disagreed.

Same file runs locally and in the cloud beta.
invariants/billing.yamlyaml
invariant:
  name: paid_customer_has_access

  given:
    stripe.subscription.status: active

  must_be_true:
    product.entitlement.plan: pro

# evaluated against live state, every 5 minutes

Category

We inspect what is true—not only what happened.

Adjacent tools watch pipelines, grade datasets or move records between systems. None of them answer whether your live business state is internally consistent right now.

Comparison of workflow observability, data quality, sync and ETL tools against Business Consistency
CapabilityWorkflow observabilityData qualitySync and ETLBusiness Consistency
Observes eventsyes·nopartial·no
Checks individual datasets·noyes·no·no
Changes or copies state·no·noyes·no
Verifies live cross-system truth·no·no·noyes
Requires application instrumentationyes·nopartial·no
Detects business-state drift·nopartial·noyes

yes partial· no

Open source

Start with the open-source engine.

Define and run business invariants locally. No telemetry collector, workflow instrumentation or heavy observability stack required.

View on GitHub
install
npm install --save-dev github:wnorth26-lang/business-consistency
runs in
CI · cron · local
config
YAML or TypeScript
output
JSON · exit codes
business-consistency · clirunning

_

checks/entitlements.tstypescript
import { defineInvariant } from 'business-consistency'

export default defineInvariant(({
  name: 'paid_customer_has_access',
  given: (s) => s.stripe.subscription.status === 'active',
  mustBeTrue: (s) => s.product.entitlement.plan === 'pro',
})

// evidence is emitted per entity, never sampled

Cloud Beta

Continuous monitoring without running it yourself.

  • Managed connectors

    Stripe, Postgres, Shopify, HR and more

  • Scheduled and continuous verification

    From five minutes to live

  • Alerts with exact evidence

    Entity, expected value, observed value

  • Violation history

    When it started, when it cleared

  • Team workflows

    Ownership, acknowledgement, escalation

Request Cloud Beta access

limited cohort

APIs, SaaS tools and databases

Optional

No payment. No account required.

Interfaces

Verified business state for software and agents.

  1. Systems of recordStripe · Postgres · ERP
  2. →
    Business Consistencyinvariant evaluation
  3. →
    API / MCPverified state
  4. →
    Applications and agentsact on truth

Agents can now discover Business Consistency through MCP and purchase authorised verification calls through ZeroClick.

Explore Agent Services
POST /v1/subscription-access-consistency200 · json
{
  "customer_id": "cus_123",
  "status": "violation",
  "expected": "pro",
  "observed": "free"
}

MCP · live

Connect Business Consistency to your agent.

Discover and call deterministic business-state verification tools from any Streamable HTTP MCP-compatible agent.

MCP discovery is public. Tool calls require ZeroClick authorisation. Seller credentials remain private and are never exposed to agents or website visitors.

Open API docs Get access via ZeroClick
Streamable HTTP endpoint
https://api.agentevidencelabs.com/mcp/

6 tools

  • verify_business_consistency
  • verify_business_consistency_batch
  • check_subscription_access
  • check_order_fulfilment
  • check_crm_billing
  • check_employee_offboarding

About

Agent Evidence Labs builds infrastructure for software that needs to know what is true.

Business Consistency is our flagship product.

Know when reality stops matching the rule.

Join Cloud BetaExplore the open source engine