JupiterInvoice

JupiterInvoice is an independent invoicing tool built by PerfSpot LLC. It offers free, lightweight invoice creation, sharing via private links, and payment collection without requiring a user account. The platform includes templates, AI assistants, and a suite of related tools such as AcornRetain and JupiterSignup. It targets freelancers, agencies, and small businesses seeking a simple alternative to larger accounting suites.

JupiterInvoice publishes 3 API contracts indexed on the APIs.io network: Customers API, Invoices API, and Webhooks API. Tagged areas include Company, Invoicing, Fintech, Software-as-a-Service, and Free.

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

JupiterInvoice’s developer surface includes pricing, documentation, engineering blog, API reference, authentication, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

37.5/100 thin Agent 22/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Company Invoicing Fintech Software-as-a-Service Free

Kin Score

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

Composite quality — 37.5/100 · thin

Contract Quality 13.2 / 21

Developer Ergonomics 5.3 / 17

Access Clarity 6.2 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 1.6 / 15

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 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 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 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 →
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 →
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 →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

9 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 31.0 — up to +13.8 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →
Access Clarity scores 36.2 — up to +12.8 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/jupiterinvoice-com/apis.yml: open an issue on github.com/api-evangelist/jupiterinvoice-com 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.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

APIs 3

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

JupiterInvoice Customers API

The Customers API from JupiterInvoice — 2 operation(s) for customers.

JupiterInvoice Invoices API

The Invoices API from JupiterInvoice — 4 operation(s) for invoices.

JupiterInvoice Webhooks API

The Webhooks API from JupiterInvoice — 3 operation(s) for webhooks.

JupiterInvoice API pricing

Prices published by JupiterInvoice, read 2026-11-13 from jupiterinvoice.com/pricing.

Plan	Price
Free	$0 forever
Pro	$10 a month

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

JupiterInvoice Plans Pricing

2 plans

PLANS

Semantic Vocabularies 1

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

Jupiterinvoice Com Context

8 classes · 68 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.

JupiterInvoice API Rules

46 rules · 44 error-severity 1 warn-severity 1 info-severity

SPECTRAL

JSON Schema 4

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

Customer

10 properties

JSON SCHEMA

Invoice

24 properties

JSON SCHEMA

WebhookDelivery

14 properties

JSON SCHEMA

Webhook

9 properties

JSON SCHEMA

Security Posture 2

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

JupiterInvoice Authentication

http · 1 scheme

SECURITY

JupiterInvoice Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

JupiterInvoice Agentic Access

14 operations · 7 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

Pricing

Pricing

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: jupiterinvoice-com
name: JupiterInvoice
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: gated
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://jupiterinvoice.com/static/og/og-home.png?v=22c0db35
description: JupiterInvoice is an independent invoicing tool built by PerfSpot LLC. It offers free, lightweight invoice creation,
  sharing via private links, and payment collection without requiring a user account. The platform includes templates, AI
  assistants, and a suite of related tools such as AcornRetain and JupiterSignup. It targets freelancers, agencies, and small
  businesses seeking a simple alternative to larger accounting suites.
url: https://artifacts.apis.io/jupiterinvoice-com/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:
- Company
- Invoicing
- Fintech
- Software-as-a-Service
- Free
tags_raw:
- Company
- invoicing
- fintech
- SaaS
- free
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/jupiterinvoice-com-agentic-access.yml
- type: Plans
  url: plans/jupiterinvoice-com-plans-pricing.yml
- type: Spectral
  url: rules/jupiterinvoice-com-rules.yml
- type: JSONLD
  url: json-ld/jupiterinvoice-com-context.jsonld
- type: Vocabulary
  url: vocabulary/jupiterinvoice-com-vocabulary.yml
- type: DataModel
  url: data-model/jupiterinvoice-com-data-model.yml
- type: ErrorCatalog
  url: errors/jupiterinvoice-com-problem-types.yml
- type: Conformance
  url: conformance/jupiterinvoice-com-conformance.yml
- type: LLMsTxt
  url: llms/jupiterinvoice-com-llms.txt
- type: WellKnown
  url: well-known/jupiterinvoice-com-well-known.yml
- type: Hosts
  url: hosts/jupiterinvoice-com-hosts.yml
- type: Vendors
  url: vendors/jupiterinvoice-com-vendors.yml
- type: Pricing
  url: https://jupiterinvoice.com/pricing
- type: Login
  url: https://jupiterinvoice.com/login
- type: Documentation
  url: https://jupiterinvoice.com/guides/
- type: Blog
  url: https://jupiterinvoice.com/blog/
- type: APIReference
  url: https://jupiterinvoice.com/for/developers/
- type: Authentication
  url: authentication/jupiterinvoice-com-authentication.yml
- type: DomainSecurity
  url: security/jupiterinvoice-com-domain-security.yml
- type: Website
  url: https://jupiterinvoice.com/
apis:
- aid: jupiterinvoice-com:jupiterinvoice-com-customers-api
  name: JupiterInvoice Customers API
  description: The Customers API from JupiterInvoice — 2 operation(s) for customers.
  humanURL: https://jupiterinvoice.com/for/developers/
  baseURL: https://jupiterinvoice.com/api/v1
  tags:
  - Customers
  properties:
  - type: OpenAPI
    url: openapi/jupiterinvoice-com-customers-api-openapi.yml
  - type: JSONSchema
    url: json-schema/jupiterinvoice-com-customer-schema.json
- aid: jupiterinvoice-com:jupiterinvoice-com-invoices-api
  name: JupiterInvoice Invoices API
  description: The Invoices API from JupiterInvoice — 4 operation(s) for invoices.
  humanURL: https://jupiterinvoice.com/for/developers/
  baseURL: https://jupiterinvoice.com/api/v1
  tags:
  - Invoices
  properties:
  - type: OpenAPI
    url: openapi/jupiterinvoice-com-invoices-api-openapi.yml
  - type: JSONSchema
    url: json-schema/jupiterinvoice-com-invoice-schema.json
- aid: jupiterinvoice-com:jupiterinvoice-com-webhooks-api
  name: JupiterInvoice Webhooks API
  description: The Webhooks API from JupiterInvoice — 3 operation(s) for webhooks.
  humanURL: https://jupiterinvoice.com/for/developers/
  baseURL: https://jupiterinvoice.com/api/v1
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/jupiterinvoice-com-webhooks-api-openapi.yml
  - type: JSONSchema
    url: json-schema/jupiterinvoice-com-webhook-delivery-schema.json
  - type: JSONSchema
    url: json-schema/jupiterinvoice-com-webhook-schema.json
x-coverage:
  state: gated
  reason: partner-login
  method: derived
  generated: '2026-11-13'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company serves an API surface but requires credentials before any description of it can be read
  evidence:
  - url: https://jupiterinvoice.com/.well-known/openapi.json
    status: null
  - url: https://jupiterinvoice.com/mcp
    status: 401
  - url: https://jupiterinvoice.com/
    status: 200
x-enrichment:
  date: '2026-11-13'
  status: enriched
  artifacts_added: 22
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

JupiterInvoice API — frequently asked questions

Does JupiterInvoice have an API?

Yes. APIs.io lists 3 APIs from JupiterInvoice, including JupiterInvoice Customers API, JupiterInvoice Invoices API and JupiterInvoice Webhooks API.

Is there an OpenAPI specification for the JupiterInvoice API?

Yes. APIs.io indexes 3 OpenAPI specifications for JupiterInvoice, each linked for download from this page.

How do I authenticate with the JupiterInvoice API?

JupiterInvoice uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as JupiterInvoice Authentication.

How much does the JupiterInvoice API cost?

JupiterInvoice publishes its prices; its Free plan is $0 forever as of 2026-11-13. APIs.io lists 2 pricing plans for JupiterInvoice, with each plan's price, limits and inclusions under Pricing on this page.

Is the JupiterInvoice API ready for AI agents?

JupiterInvoice has a Kin Score of 37.5 out of 100 (thin) and an Agent Readiness score of 22.4 (agent-aware), scored by API Evangelist on 2026-11-13.

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