Faultline

Faultline provides monitoring for HTTP endpoints, Docker, ECS, cron jobs, and queues. It opens incidents, pages on‑call responders, runs runbooks, and answers AI agents via its MCP. The platform offers a comprehensive observability suite with customizable alerts, integrations, and a developer-friendly API for automating monitoring workflows across cloud and on‑premise environments.

Faultline is listed with 2 APIs on the APIs.io network. Tagged areas include Monitoring, SRE Tools, and AIOps.

The Faultline catalog on APIs.io includes 1 Spectral governance ruleset.

Faultline’s developer surface includes CLI, authentication, engineering blog, documentation, getting-started guide, pricing, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

30.4/100 thin Agent 17/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

2 APIs

MonitoringSRE ToolsAIOps

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 30.4/100 · thin

Contract Quality 2.5 / 21

Developer Ergonomics 7.3 / 17

Access Clarity 8.7 / 17

Operational Transparency 0.5 / 11

Contract Governance 2.2 / 10

Discoverability 4.1 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 17/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →

11 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 11.9 — up to +22.0 composite points Ask about this →
Operational Transparency scores 4.8 — up to +12.4 composite points Ask about this →
Developer Ergonomics scores 42.9 — up to +11.4 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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 the provider profile at artifacts.apis.io/fltln-io/apis.yml: open an issue on github.com/api-evangelist/fltln-io to ask a question or point us at an artifact you publish. 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.

Faultline API

Faultline API provides monitoring and incident management endpoints as documented.

Faultline API

Faultline API as documented publicly: 4 operations. Contract generated from the documentation by API Evangelist (2026-11-08); not the provider's own document.

Faultline API pricing

Prices published by Faultline, read 2026-11-08 from fltln.io/pricing/.

Plan	Price
Free	$0/mo
Pro	$49/mo
Growth	$159/mo
Enterprise	$399+/mo

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Faultline Plans Pricing

4 plans

PLANS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Faultline API Rules

26 rules · 24 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

Faultline Authentication

2 schemes

SECURITY

Faultline Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Spectral

Spectral

Vocabulary

Vocabulary

Conformance

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

CLI

CLI

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Roadmap

Roadmap

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

PrivacyPolicy

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: fltln-io
name: Faultline
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  probe_state: unreadable
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://fltln.io/fltlnlogo.png
description: Faultline provides monitoring for HTTP endpoints, Docker, ECS, cron jobs, and queues. It opens incidents, pages
  on‑call responders, runs runbooks, and answers AI agents via its MCP. The platform offers a comprehensive observability
  suite with customizable alerts, integrations, and a developer-friendly API for automating monitoring workflows across cloud
  and on‑premise environments.
url: https://artifacts.apis.io/fltln-io/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-08 (modular-v1; was harvest)
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: Documentation pages are served via JavaScript redirects and no machine‑readable OpenAPI spec is available.
  evidence:
  - url: https://fltln.io/docs
    status: 308
  checked: '2026-11-08'
specificationVersion: '0.20'
created: '2026-11-08'
modified: '2026-11-08'
tags:
- Monitoring
- SRE Tools
- AIOps
tags_raw:
- Monitoring
- SRE Tools
- AI Ops
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/fltln-io-plans-pricing.yml
- type: Spectral
  url: rules/fltln-io-rules.yml
- type: Vocabulary
  url: vocabulary/fltln-io-vocabulary.yml
- type: CLI
  url: cli/fltln-io-cli.yml
- type: Authentication
  url: authentication/fltln-io-authentication.yml
- type: Conformance
  url: conformance/fltln-io-conformance.yml
- type: LLMsTxt
  url: llms/fltln-io-llms.txt
- type: Hosts
  url: hosts/fltln-io-hosts.yml
- type: Vendors
  url: vendors/fltln-io-vendors.yml
- type: DomainSecurity
  url: security/fltln-io-domain-security.yml
- type: Website
  url: https://fltln.io/
- type: Blog
  url: https://fltln.io/blog
- type: Documentation
  url: https://fltln.io/docs
- type: GettingStarted
  url: https://fltln.io/docs/quickstart
- type: Pricing
  url: https://fltln.io/pricing
- type: PrivacyPolicy
  url: https://fltln.io/privacy
- type: Roadmap
  url: https://fltln.io/roadmap
- type: TermsOfService
  url: https://fltln.io/terms
apis:
- name: Faultline API
  description: Faultline API provides monitoring and incident management endpoints as documented.
  humanURL: https://fltln.io/docs
  baseURL: null
  aid: fltln-io:faultline-api
- aid: fltln-io:fltln-io-api
  name: Faultline API
  description: 'Faultline API as documented publicly: 4 operations. Contract generated from the documentation by API Evangelist
    (2026-11-08);

    not the provider''s own document.'
  humanURL: https://fltln.io/docs/cli-and-heartbeats
  baseURL: https://api.fltln.io
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/fltln-io-openapi-generated.yml
    x-provenance: generated
x-enrichment:
  date: '2026-11-08'
  status: enriched
  artifacts_added: 18
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Faultline API — frequently asked questions

Does Faultline have an API?

Yes. APIs.io lists 2 APIs from Faultline, including Faultline API and Faultline API.

Is there an OpenAPI specification for the Faultline API?

Yes. APIs.io indexes 1 OpenAPI specification for Faultline, each linked for download from this page.

How do I authenticate with the Faultline API?

Faultline uses bearer-token authentication (2 schemes). The details are profiled on APIs.io as Faultline Authentication.

How much does the Faultline API cost?

Faultline publishes its prices; its Free plan is $0/mo as of 2026-11-08. APIs.io lists 4 pricing plans for Faultline, with each plan's price, limits and inclusions under Pricing on this page.

Is the Faultline API ready for AI agents?

Faultline has a Kin Score of 30.4 out of 100 (thin) and an Agent Readiness score of 17.3 (agent-aware), scored by API Evangelist on 2026-11-13.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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