Jsmon

Jsmon provides an AI‑powered External Attack Surface Management (EASM) platform that gives security teams visibility into exposed JavaScript, hidden APIs, misconfigured cloud assets and shadow infrastructure. Their mission is to make the internet’s external attack surface visible and actionable for everyone from solo bug hunters to Fortune 500 security operations centers.

Jsmon is listed with 2 APIs on the APIs.io network. Tagged areas include Security, Attack Surface, Artificial Intelligence, Monitoring, and Platform.

The Jsmon catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Jsmon’s developer surface includes CLI, authentication, signup flow, changelog, documentation, pricing, engineering blog, and 25 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

40.3/100 developing Agent 37/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaidFree trial

2 APIs

Security Attack Surface Artificial Intelligence Monitoring Platform

Kin Score

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

Composite quality — 40.3/100 · developing

Contract Quality 4.0 / 21

Developer Ergonomics 6.9 / 17

Access Clarity 10.5 / 17

Operational Transparency 3.2 / 11

Contract Governance 2.2 / 10

Discoverability 5.8 / 9

Regulatory Posture 4.2 / 15

Agent readiness — 37/100 · agent ready

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 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 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 →
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 →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →

7 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 19.0 — up to +20.3 composite points Ask about this →
Developer Ergonomics scores 40.5 — up to +11.9 composite points Ask about this →
Contract Governance scores 22.0 — up to +9.4 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/jsmon-sh/apis.yml: open an issue on github.com/api-evangelist/jsmon-sh 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 →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Agent2Agent

measured — observed by APIs.io (conformant)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 2

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

Jsmon API

Jsmon API provides endpoints for scanning and managing external attack surface data as documented in the API reference.

Jsmon API

Jsmon API as documented publicly: 1 operations. Contract generated from the documentation by API Evangelist (2026-11-13); not the provider's own document.

Jsmon API pricing

Prices published by Jsmon, read 2026-11-13 from jsmon.sh/pricing. A free plan or tier is listed.

Plan	Price
Starter	Free// one-time, not recurring
Recon	$15/mo or $180/year
Recon Pro	$50/mo or $600/year
Credits Add‑on	$10 = 15,000 Credits

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Jsmon Plans Pricing

4 plans

PLANS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Jsmon Sh Context

1 classes · 3 properties

JSON-LD

Spectral Rules 1

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

Jsmon API Rules

35 rules · 33 error-severity 1 warn-severity 1 info-severity

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

PostApiV1ScanRequest

3 properties

JSON SCHEMA

Security Posture 3

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

Jsmon Authentication

1 scheme

SECURITY

Jsmon Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Jsmon Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

CLI

CLI

GitHubOrganization

GitHubOrganization

Access & Security 10

Authentication, authorization, and security posture

Security

Authentication

SecurityTxt

SecurityTxt

SecurityTxt

SecurityTxt

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Scroll for all 10

Operate 1

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

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 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: jsmon-sh
name: Jsmon
accessModel:
  pricing: paid
  onboarding: unknown
  trial: true
  try_now: false
  public: false
  label: Paid (free trial)
  confidence: medium
  probe_state: unreadable
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://framerusercontent.com/images/k9dfmdWdJmEdOzBcAhsYivBsy8.png
description: Jsmon provides an AI‑powered External Attack Surface Management (EASM) platform that gives security teams visibility
  into exposed JavaScript, hidden APIs, misconfigured cloud assets and shadow infrastructure. Their mission is to make the
  internet’s external attack surface visible and actionable for everyone from solo bug hunters to Fortune 500 security operations
  centers.
url: https://artifacts.apis.io/jsmon-sh/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-13 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-13'
modified: '2026-11-13'
tags:
- Security
- Attack Surface
- Artificial Intelligence
- Monitoring
- Platform
tags_raw:
- Security
- AttackSurface
- AI
- Monitoring
- Platform
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/jsmon-sh-plans-pricing.yml
- type: Spectral
  url: rules/jsmon-sh-rules.yml
- type: JSONLD
  url: json-ld/jsmon-sh-context.jsonld
- type: Vocabulary
  url: vocabulary/jsmon-sh-vocabulary.yml
- type: DataModel
  url: data-model/jsmon-sh-data-model.yml
- type: CLI
  url: cli/jsmon-sh-cli.yml
- type: Security
  url: security/jsmon-sh-vulnerability-disclosure.yml
- type: Authentication
  url: authentication/jsmon-sh-authentication.yml
- type: Conformance
  url: conformance/jsmon-sh-conformance.yml
- type: LLMsTxt
  url: llms/jsmon-sh-llms.txt
- type: AgentCard
  url: a2a/jsmon-sh-a2a.yml
- type: SecurityTxt
  url: well-known/jsmon-sh-subdomains-security.txt
- type: SecurityTxt
  url: well-known/jsmon-sh-security.txt
- type: SecurityTxt
  url: well-known/jsmon-sh-docs-security.txt
- type: SecurityTxt
  url: well-known/jsmon-sh-blogs-security.txt
- type: SecurityTxt
  url: well-known/jsmon-sh-app-security.txt
- type: SecurityTxt
  url: well-known/jsmon-sh-api-security.txt
- type: WellKnown
  url: well-known/jsmon-sh-well-known.yml
- type: Hosts
  url: hosts/jsmon-sh-hosts.yml
- type: Vendors
  url: vendors/jsmon-sh-vendors.yml
- type: SignUp
  url: https://app.jsmon.sh/signup
- type: GitHubOrganization
  url: https://github.com/jsmonhq
- type: ChangeLog
  url: https://jsmon.sh/release-notes
- type: VulnerabilityDisclosure
  url: security/jsmon-sh-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/jsmon-sh-domain-security.yml
- type: Website
  url: https://jsmon.sh/
- type: Documentation
  url: https://docs.jsmon.sh/
- type: Pricing
  url: https://jsmon.sh/pricing
- type: Blog
  url: https://blogs.jsmon.sh/
- type: DeveloperPortal
  url: https://app.jsmon.sh/
- type: PrivacyPolicy
  url: https://jsmon.sh/privacy-policy
- type: TermsOfService
  url: https://jsmon.sh/terms-of-use
apis:
- name: Jsmon API
  description: Jsmon API provides endpoints for scanning and managing external attack surface data as documented in the API
    reference.
  humanURL: https://docs.jsmon.sh/
  baseURL: null
  aid: jsmon-sh:api
- aid: jsmon-sh:jsmon-sh-api
  name: Jsmon API
  description: 'Jsmon API as documented publicly: 1 operations. Contract generated from the documentation by API Evangelist
    (2026-11-13); not the provider''s own document.'
  humanURL: https://docs.jsmon.sh/api-keys-and-credits.md
  baseURL: https://api.jsmon.sh
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/jsmon-sh-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/jsmon-sh-post-api-v1-scan-request-schema.json
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: Docs at https://docs.jsmon.sh/ are rendered via JavaScript and no machine‑readable OpenAPI spec was found.
  evidence:
  - url: https://docs.jsmon.sh/
    status: 200
x-enrichment:
  date: '2026-11-13'
  status: enriched
  artifacts_added: 36
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Jsmon API — frequently asked questions

Does Jsmon have an API?

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

Is there an OpenAPI specification for the Jsmon API?

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

How do I authenticate with the Jsmon API?

Jsmon documents its authentication (1 scheme). The details are profiled on APIs.io as Jsmon Authentication.

How much does the Jsmon API cost?

Jsmon publishes its prices; its Starter plan is Free// one-time, not recurring as of 2026-11-13. APIs.io lists 4 pricing plans for Jsmon, with each plan's price, limits and inclusions under Pricing on this page.

Is the Jsmon API ready for AI agents?

Jsmon has a Kin Score of 40.3 out of 100 (developing) and an Agent Readiness score of 36.7 (agent-ready), scored by API Evangelist on 2026-11-13.

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