Observability is the experience of being able to see what an API is actually doing in production. Logging, monitoring, analytics, and tracing turn an opaque running system into something teams can understand, debug, and improve. Without observability, operating an API is flying blind and hoping nothing goes wrong. I treat observability as a prerequisite for reliability rather than a nice-to-have. When you can see how an API behaves, where it slows down, and how consumers actually use it, you can make decisions based on evidence instead of guesswork. The providers with the best observability are the ones who find problems before their consumers do.
Observability
Policies
FinOps Cost Visibility
I require that the full cost of running an API is made visible through FinOps practices, so the people making decisions about an API can see what it actually costs to operate, not just what it earn...
Maturity Scoring (Governance)
Require that every API is scored against a shared maturity model that measures design, documentation, testing, security, and operational readiness, and that the score is visible to the team that ow...
Logging Is Standardized
Require that every API emit standardized, structured logs with consistent fields for request identity, timing, status, and correlation. I expect logs to follow a shared schema across services so th...
Monetization Metering
I require that every monetized API meters usage accurately and makes the units it counts explicit, so both the provider and the consumer agree on exactly what is being measured and billed. Metering...
Observability Is Instrumented
Every API must be instrumented for observability, exposing metrics, traces, and health signals that let operators understand its behavior in real time. I require that latency, error rates, and thro...
5xx Response Schema (OpenAPI)
Require that our 5xx server-error responses define a schema, reusing the same standardized error object we use elsewhere so a consumer can handle our failures the same way they handle everything el...
Health Checks (Operations)
Require that every API exposes a standard health check endpoint, so I want a predictable path that reports liveness and readiness along with the status of critical dependencies. I insist on this be...
Logging (Operations)
Require that every API produces structured, correlated logs for each request, so I want a consistent log schema, a correlation or trace identifier carried through, and clear rules about what gets c...
Monitoring (Operations)
Require that every API is actively monitored for availability, latency, error rates, and traffic, so I want the golden signals collected, dashboarded, and wired to alerts before an API ever reaches...
Strategies
API Dependencies Are Tracked and Managed
All API-to-API dependencies must be documented and tracked, with upstream and downstream impact analysis performed before changes are made, ensuring that teams understand the ripple effects of chan...
APIs Are Observable Across Operations
I want to be able to see what our APIs are doing in production, because an API we cannot observe is an API we cannot actually operate. That means standardized logging so every service tells its sto...
APIs Are Observable and Monitored
All APIs must have comprehensive observability including monitoring, logging, health checks, and alerting, with defined SLIs and SLOs that ensure teams can proactively detect, diagnose, and resolve...
