Nobl9 website screenshot

Nobl9

Nobl9 is a service-level objective (SLO) management platform that helps engineering and SRE teams define, measure, and act on reliability targets across cloud and observability tools. The platform aggregates data from Datadog, Prometheus, New Relic, Splunk, AWS CloudWatch, and other sources to compute error budgets and surface reliability insights. Nobl9 exposes a suite of REST APIs for managing SLOs, annotations, budget adjustments, audit logs, and reports using access token authentication.

Nobl9 publishes 2 APIs on the APIs.io network. Tagged areas include Reliability, SLO, SRE, Observability, and Error Budgets.

Nobl9’s developer surface includes documentation, pricing, signup flow, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
17.7/100 emerging ▬ flat Agent 11/100 agent aware Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0
2 APIs 1 MCP Servers
ReliabilitySLOSREObservabilityError Budgets

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-04 · rubric v0.23.0
Composite quality — 17.7/100 · emerging
Contract Quality 0.0 / 21
Developer Ergonomics 4.9 / 17
Access Clarity 4.0 / 17
Operational Transparency 0.3 / 11
Contract Governance 0.0 / 10
Discoverability 6.4 / 9
Regulatory Posture 1.8 / 15
Agent readiness — 11/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/nobl9: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Nobl9 SLO Status API

REST API for retrieving service level objective status, error budget consumption, and reliability metrics programmatically. Authentication uses a Nobl9 access token.

Nobl9 Annotations API

REST API for creating and managing SLO annotations to contextualize reliability data with deployments, incidents, and operational events.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Nobl9 MCP Server

Remote MCP server at app.nobl9.com over HTTP.

MCP SERVER

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Nobl9 Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Signup
Signup

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 API Documentation
API Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LlmsText
LlmsText

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 GitHub SDK
GitHub SDK

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

Pricing
Pricing

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: nobl9
name: Nobl9
description: Nobl9 is a service-level objective (SLO) management platform that helps engineering and SRE teams define, measure,
  and act on reliability targets across cloud and observability tools. The platform aggregates data from Datadog, Prometheus,
  New Relic, Splunk, AWS CloudWatch, and other sources to compute error budgets and surface reliability insights. Nobl9 exposes
  a suite of REST APIs for managing SLOs, annotations, budget adjustments, audit logs, and reports using access token authentication.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/nobl9.png
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
x-docs-hosting: aws-cloudfront
tags:
- Reliability
- SLO
- SRE
- Observability
- Error Budgets
tags_raw:
- Reliability
- SLO
- Service Level Objectives
- SRE
- Observability
- Error Budgets
url: https://raw.githubusercontent.com/api-evangelist/nobl9/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.23'
apis:
- aid: nobl9:slo-api
  name: Nobl9 SLO Status API
  description: REST API for retrieving service level objective status, error budget consumption, and reliability metrics programmatically.
    Authentication uses a Nobl9 access token.
  humanURL: https://docs.nobl9.com/api/slo/
  baseURL: https://app.nobl9.com/api
  tags:
  - SLO
  - Reliability
  - Error Budgets
  properties:
  - type: Documentation
    url: https://docs.nobl9.com/api/slo/
  - type: Authentication
    url: https://docs.nobl9.com/api/access-token/
- aid: nobl9:annotations-api
  name: Nobl9 Annotations API
  description: REST API for creating and managing SLO annotations to contextualize reliability data with deployments, incidents,
    and operational events.
  humanURL: https://docs.nobl9.com/api/annotations/
  baseURL: https://app.nobl9.com/api
  tags:
  - Annotation
  - SLO
  - Event
  tags_raw:
  - Annotations
  - SLO
  - Events
  properties:
  - type: Documentation
    url: https://docs.nobl9.com/api/annotations/
common:
- type: DomainSecurity
  url: security/nobl9-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/nobl9inc
- type: Website
  url: https://www.nobl9.com
- type: Documentation
  url: https://docs.nobl9.com
- type: API Documentation
  url: https://docs.nobl9.com/api/
- type: Pricing
  url: https://www.nobl9.com/pricing
- type: Signup
  url: https://app.nobl9.com/signup
- type: GitHubOrganization
  url: https://github.com/nobl9
- type: GitHub SDK
  url: https://github.com/nobl9/nobl9-go
- type: LlmsText
  url: https://docs.nobl9.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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