Prometheus
Prometheus is a Cloud Native Computing Foundation graduated open source systems monitoring and alerting toolkit. A Prometheus server scrapes metrics over HTTP from instrumented targets, stores them in an embedded time series database, and lets operators query, alert, and aggregate them with the PromQL query language. The project pairs the Prometheus server with Alertmanager for alert routing and silencing, official client libraries for Go, Java, Python, Ruby, and Rust, and a large ecosystem of exporters (node, blackbox, snmp, statsd, jmx, mysqld, cloudwatch, consul, graphite, memcached, pushgateway, etc.) for pulling metrics out of existing systems. Prometheus also drives the OpenMetrics exposition format and an experimental Remote Write 2.0 protocol for shipping samples to long-term storage backends.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Prometheus the way a machine reads it — 34 machine-readable artifacts across 21 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Prometheus scores 47.2/100 (developing), with a separate agent-readiness read of 32/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Prometheus
Each block below is one kind of artifact we hold for Prometheus. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 21
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Prometheus Remote Write
Remote Write is Prometheus' push protocol for shipping scraped samples to long-term storage and analysis backends (Cortex, Thanos, Mimir, VictoriaMetrics, InfluxDB, Datadog, etc...
Prometheus Exposition Format / OpenMetrics
The text-based exposition format that every instrumented target exposes (typically on /metrics) and that the Prometheus server scrapes over HTTP. The format evolved into OpenMet...
Prometheus OTLP Metrics Receiver
Optional OpenTelemetry Protocol metrics receiver exposed on /api/v1/otlp/v1/metrics when the Prometheus server is started with --web.enable-otlp-receiver. Accepts OTLP/HTTP prot...
Prometheus admin API
Administrative operations for TSDB management.
Prometheus alert API
Everything related to Alertmanager alerts
Prometheus alertgroup API
The alertgroup API from Prometheus — 1 operation(s) for alertgroup.
Prometheus alerts API
Query active alerts and alertmanager discovery.
Prometheus features API
Query enabled features.
Prometheus general API
General Alertmanager operations
Prometheus labels API
Query label names and values.
Prometheus metadata API
Retrieve metric metadata such as type and unit.
Prometheus notifications API
Server notifications and events.
Prometheus otlp API
OpenTelemetry Protocol metrics ingestion.
Prometheus query API
Query and evaluate PromQL expressions.
Prometheus receiver API
Everything related to Alertmanager receivers
Prometheus remote API
Remote read and write endpoints.
Prometheus rules API
Query recording and alerting rules.
Prometheus series API
Query and manage time series.
Prometheus silence API
Everything related to Alertmanager silences
Prometheus status API
Retrieve server status and configuration.
Prometheus targets API
Retrieve target and scrape pool information.
Scroll within the panel for all 21 ·
Open Collections 2
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Alertmanager API
OPEN COLLECTIONPrometheus API
OPEN COLLECTIONGraphQL 1
Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.
GraphQL schemas published by this provider.
Prometheus GraphQL Schema
This directory contains a conceptual GraphQL schema that maps the Prometheus HTTP API to GraphQL types and queries. Prometheus itself exposes a REST/PromQL HTTP API — this schem...
GRAPHQLSemantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Prometheus Io Context
JSON-LDSpectral Rules 2
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Prometheus API Rules
SPECTRALPrometheus API Rules
SPECTRALJSON Schema 2
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
Prometheus Query Result
JSON SCHEMAPrometheus Scrape Target
JSON SCHEMAExamples 3
Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.
Example request and response payloads for these APIs.
Prometheus Query Example
EXAMPLEPrometheus Targets Example
EXAMPLESecurity Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Prometheus — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 1
Portal, sign-up, and the first successful call
Documentation 7
Reference material describing how the API behaves
Scroll within the panel for all 7 ·
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 20
SDKs, sample code, and the tooling you integrate with
Scroll within the panel for all 20 ·
Access & Security 2
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/prometheus-io · machine-readable index on apis.io