The self-managing API control plane

Get the API change problem right.

You don't have an API creation problem. You have an API change-management problem. KizunAPI continuously discovers your APIs, maps who really depends on them, and autonomously fixes, tests, and ships every breaking change — before it reaches production.

One control plane for REST · gRPC · GraphQL · MCP · AI agents
Get a demo See the platform Control plane SaaS · data plane in your VPC
Discover

API Intelligence

Live inventory, ownership, and real field-level usage.

Understand

Dependency Graph

Field → service → customer, from production traffic.

Act

Autopilot

Detect → fix → test → deploy → verify, autonomously.

Govern

Runtime Policy

PII detection, anomaly alerts, audit evidence.

Deliver

Experience

Docs, SDKs & portal always in sync with the contract.

Built for the segments where change hurts most
API-first SaaSFintechRegulated EnterpriseMarketplaceAI-native
Beyond REST

AI agents run on APIs. Govern their contracts the same way.

MCP tools, agent-to-agent calls, and LLM-backed endpoints are just more contracts that break. KizunAPI treats them as first-class nodes in the same knowledge graph - so an agent tool-schema change gets the same detect-fix-verify loop as a payments API.

Explore the Autopilot
The platform

But first, get the API layer right.

Four layers that turn a patchwork of gateways, specs, and tribal knowledge into one self-managing system. We don't replace Apigee, Kong, or AWS Gateway — we make them inputs.

Layer 1

API Experience

Docs, SDKs, developer portal, and an AI assistant — regenerated automatically whenever the live contract changes.

Layer 2

API Intelligence

Inventory, real production usage, dependency graph, ownership, risk, and context. The system of record for API dependencies that doesn't exist today.

Layer 3

API Autopilot

Detect → analyze → generate → patch → test → deploy → verify. The autonomous remediation engine — and the heart of the MVP.

Layer 4

API Control Plane

Connects to gateways, Kubernetes, Git, CI/CD, cloud, and service mesh. SaaS control plane; self-managed execution.

Moat

Usage-fused graph

Knowledge graph + actual production usage down to the field + an automated remediation engine. Nobody has all three.

Every protocol

One model

REST, gRPC, GraphQL, event and data contracts, MCP, and AI agents — all represented as contracts in the same graph.

The core · API Estate Graph

The system of record for API dependencies that doesn't exist today.

Every API, endpoint, schema, field, consumer, repo, service, deployment, customer and business capability — connected in one live graph, enriched with real production usage. This is the moat: it's what lets KizunAPI answer "who actually breaks?" in seconds, and it's what the Autopilot acts on. Hover the chain, click any node.

Live estate · lit path

Unlike a static catalog, the Estate Graph is fused with field-level production usage — so it knows the 3 consumers that actually read customer_ref, not the 6 that merely call the endpoint. That precision is what turns a breaking change from a day-long incident into an 11-minute autonomous run.

The MVP · running the real scenario

The full lifecycle, running in minutes.

A third-party payments API ships a breaking v3 at 09:14 UTC. No engineer was told. Step through exactly what KizunAPI does — from detection to a verified, deployed fix.

KizunAPI Autopilot

run · paysprint-v3-migration
Idle — ready to run
1
Detect
2
Analyze
3
Blast radius
4
Generate fix
5
Test
6
Deploy
7
Verify

Ready when you are

Press Run next step to begin. KizunAPI walks the whole change-management lifecycle for the PaySprint v3 breaking change — the real scenario from customer discovery.
[KizunAPI] knowledge graph loaded · 340 APIs · 1,880 endpoints · 12,400 field-level usages
[KizunAPI] continuous contract monitor active on 22 external dependencies
[KizunAPI] awaiting run command…
Autonomous lifecycle · 7 stages
Deployment model

Your infrastructure. Your rules.

The control plane runs as SaaS — the intelligence, the graph, the migration engine. The execution and telemetry stay inside your environment. This hybrid split matches how enterprise security teams already buy.

Control plane — SaaS

API intelligence, dependency graph, change detection, impact analysis, migration engine, policy, and AI agents.

Data plane — your VPC / K8s

Gateways, services, traffic, telemetry, runtime enforcement, and local execution — nothing sensitive leaves your boundary.

Enterprise-ready

SSO, RBAC, VPC isolation, full audit trail, and data retention controls — the way security teams expect to consume it.

What discovery told us

The pain is real, and it's expensive.

Illustrative voices representing the personas and pain points surfaced in customer discovery across fintech, SaaS, and regulated enterprise.

"We genuinely don't know how many external APIs we depend on. We find out when something breaks."

Head of PlatformAPI-first SaaS

"The last breaking change pulled nine engineers off roadmap for a full day. Nobody could tell me the blast radius."

VP EngineeringFintech / payments

"If software could detect, patch, test and deploy an API change for us, it would eliminate most of what my team does on migrations."

CTORegulated enterprise
Where we start

Point us at what you already have.

KizunAPI ingests from the gateways and tools you run today and makes them inputs into the knowledge graph. No rip-and-replace on day one.

From Apigee / Kong

Import existing API configs and specs; we start building the dependency graph from your gateway inventory immediately.

See how →

From Git & CI/CD

Connect repos and pipelines so we can map call-sites and open migration PRs where the code actually lives.

See how →

From spec diffing

Replace the manual oasdiff "keep-a-baseline-and-re-run" hack with continuous, semantic contract monitoring.

See how →
Why KizunAPI

Everyone owns a slice. KizunAPI owns the estate.

Gateways route traffic, design tools shape specs, observability watches runtime. KizunAPI's wedge is the layer above all of them — a cross-vendor estate graph with ownership, dependency and lifecycle intelligence that no single incumbent delivers end-to-end.

Capability KizunAPI Kong Apigee MuleSoft Postman Datadog ServiceNow
Live API inventory & ownership✓✓✓✓✓✕✓
Design-time governance & linting✓✓✓✓✓✕◐
API Catalog✓✓✓✓✓✕✓
Cross-platform discovery✓◐◐✓◐◐✓
API Estate Graph✓✕◐◐✕◐✕
Ownership intelligence✓◐◐◐✓✕✓
Dependency / impact analysis✓◐◐✓◐✓◐
Lifecycle intelligence✓✓✓✓✓✕◐
Cross-vendor control plane✓✕✕✕✕✓✓
✓ Native capability ◐ Partial / limited ✕ Not offered

Read it by column, not by row. The incumbents each win their home turf — Kong and Apigee on the gateway, Postman on design and test, Datadog on observability, ServiceNow on cross-vendor workflow. KizunAPI's wedge is the band in the middle — cross-platform discovery, the estate graph, ownership, dependency and lifecycle intelligence — the only column that's a clean ✓ the whole way down. Capability snapshot as of October 2026; vendor features move quickly, so we keep this matrix sourced and dated.

The autonomous lifecycle

Get the API change problem right.

One continuous loop — from discovery to retirement, with as little human intervention as possible.

Discover
Estate Graph
Understand
Predict impact
Fix
Test
Deploy
Verify
Retire