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Prometheus website screenshot

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.

agent aware

Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.

Kin Score

API Evangelist profiles Prometheus the way a machine reads it — 53 machine-readable artifacts across 2 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 36.9/100 (thin), with a separate agent-readiness read of 20/100 (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. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Prometheus Kin Score — API readiness rating by API Evangelist

Put this on your own site. The badge is drawn live from Prometheus's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.

<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/prometheus-io/"
   title="Prometheus on API Evangelist — API profile and Kin Score">
  <img src="https://apis.io/badge/prometheus-io.svg"
       alt="Prometheus Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>

More shapes, themes and sizes → · Score as JSON · How badges work

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 21

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).

Scroll within the panel for all 21 ·

GraphQL 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...

GRAPHQL

Semantic 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

48 classes · 6 properties

JSON-LD

Spectral 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

6 rules · 4 warnings

SPECTRAL

Prometheus API Rules

10 rules · 5 errors · 5 warnings

SPECTRAL

JSON 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

6 properties

JSON SCHEMA

Prometheus Scrape Target

2 properties

JSON SCHEMA

Examples 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.

Security 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.

Prometheus Io Domain Security

TLSv1.3 · HSTS

SECURITY

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.

Prometheus Io Agentic Access

57 operations · 22 acting

57 operations · 22 acting

AGENTIC

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

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

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

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

Where this information came from

This is an independent, third-party profile of Prometheus, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.