AsterNym

AsterNym reads your birth through eight symbolic systems and one real astronomical sky, calculates each by its own rules, keeps them apart, and shows which parts are measured and which parts are believed.

AsterNym publishes 5 API contracts indexed on the APIs.io network, including Bazi API, Natal API, Numerology API, and 2 more. Tagged areas include Astrology, BaZi, Numerology, Compatibility, and BirthChart.

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

AsterNym’s developer surface includes engineering blog and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

30.3/100 thin Agent 22/100 agent aware Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

1 published contract 1 MCP Servers 1 Agent Skills

Astrology BaZi Numerology Compatibility BirthChart

Kin Score

Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0

Composite quality — 30.3/100 · thin

Contract Quality 12.5 / 21

Developer Ergonomics 1.5 / 17

Access Clarity 3.6 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 5.5 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 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 5 / 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 0 / 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):

Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

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 8.8 — up to +18.2 composite points
Access Clarity scores 21.1 — up to +15.8 composite points
Operational Transparency scores 0.0 — up to +13.0 composite points

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.

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/asternym-com/apis.yml: open an issue on github.com/api-evangelist/asternym-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 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 5

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

AsterNym Bazi API

The Bazi API from AsterNym — 2 operation(s) for bazi.

AsterNym Natal API

The Natal API from AsterNym — 1 operation(s) for natal.

AsterNym Numerology API

The Numerology API from AsterNym — 1 operation(s) for numerology.

AsterNym Reading API

The Reading API from AsterNym — 1 operation(s) for reading.

AsterNym Zodiac API

The Zodiac API from AsterNym — 1 operation(s) for zodiac.

MCP Servers 1

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

AsterNym MCP Server

Remote MCP server at asternym.com.

MCP SERVER

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

reading

AGENT SKILL

Semantic Vocabularies 1

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

Asternym Com Context

2 classes · 11 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

AsterNym API Rules

49 rules · 47 errors 1 warnings 1 info

SPECTRAL

JSON Schema 2

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

EngineResult

6 properties

JSON SCHEMA

Reading

10 properties

JSON SCHEMA

Security Posture 1

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

Asternym Com Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

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

Asternym Com Agentic Access

12 operations · 6 acting

AGENTIC

Resources

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

MCPServer

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

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: asternym-com
name: AsterNym
description: AsterNym reads your birth through eight symbolic systems and one real astronomical sky, calculates each by its
  own rules, keeps them apart, and shows which parts are measured and which parts are believed.
url: https://artifacts.apis.io/asternym-com/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-02'
  method: derived
image: https://asternym.com/og/home-og.png
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-01 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-01'
modified: '2026-11-01'
tags:
- Astrology
- BaZi
- Numerology
- Compatibility
- BirthChart
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/asternym-com-agentic-access.yml
- type: Spectral
  url: rules/asternym-com-rules.yml
- type: JSONLD
  url: json-ld/asternym-com-context.jsonld
- type: Vocabulary
  url: vocabulary/asternym-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/asternym-com-data-model.yml
- type: ErrorCatalog
  url: errors/asternym-com-problem-types.yml
- type: Conformance
  url: conformance/asternym-com-conformance.yml
- type: LLMsTxt
  url: llms/asternym-com-llms.txt
- type: ToolCrosswalk
  url: mcp/asternym-com-tool-crosswalk.yml
- type: MCPServer
  url: mcp/asternym-com-mcp.yml
- type: Hosts
  url: hosts/asternym-com-hosts.yml
- type: Vendors
  url: vendors/asternym-com-vendors.yml
- type: TermsOfService
  url: https://asternym.com/terms
- type: PrivacyPolicy
  url: https://asternym.com/privacy
- type: Blog
  url: https://asternym.com/blog
- type: DomainSecurity
  url: security/asternym-com-domain-security.yml
- type: Website
  url: https://asternym.com/
apis:
- aid: asternym-com:asternym-com-bazi-api
  name: AsterNym Bazi API
  description: The Bazi API from AsterNym — 2 operation(s) for bazi.
  humanURL: https://asternym.com
  baseURL: https://asternym.com
  tags:
  - BaZi
  tags_raw:
  - Bazi
  properties:
  - type: OpenAPI
    url: openapi/asternym-com-bazi-api-openapi.yml
  - type: JSONSchema
    url: json-schema/asternym-com-engine-result-schema.json
  - type: JSONSchema
    url: json-schema/asternym-com-reading-schema.json
- aid: asternym-com:asternym-com-natal-api
  name: AsterNym Natal API
  description: The Natal API from AsterNym — 1 operation(s) for natal.
  humanURL: https://asternym.com
  baseURL: https://asternym.com
  tags:
  - Natal
  properties:
  - type: OpenAPI
    url: openapi/asternym-com-natal-api-openapi.yml
  - type: JSONSchema
    url: json-schema/asternym-com-engine-result-schema.json
  - type: JSONSchema
    url: json-schema/asternym-com-reading-schema.json
- aid: asternym-com:asternym-com-numerology-api
  name: AsterNym Numerology API
  description: The Numerology API from AsterNym — 1 operation(s) for numerology.
  humanURL: https://asternym.com
  baseURL: https://asternym.com
  tags:
  - Numerology
  properties:
  - type: OpenAPI
    url: openapi/asternym-com-numerology-api-openapi.yml
  - type: JSONSchema
    url: json-schema/asternym-com-engine-result-schema.json
  - type: JSONSchema
    url: json-schema/asternym-com-reading-schema.json
- aid: asternym-com:asternym-com-reading-api
  name: AsterNym Reading API
  description: The Reading API from AsterNym — 1 operation(s) for reading.
  humanURL: https://asternym.com
  baseURL: https://asternym.com
  tags:
  - Reading
  properties:
  - type: OpenAPI
    url: openapi/asternym-com-reading-api-openapi.yml
  - type: JSONSchema
    url: json-schema/asternym-com-engine-result-schema.json
  - type: JSONSchema
    url: json-schema/asternym-com-reading-schema.json
- aid: asternym-com:asternym-com-zodiac-api
  name: AsterNym Zodiac API
  description: The Zodiac API from AsterNym — 1 operation(s) for zodiac.
  humanURL: https://asternym.com
  baseURL: https://asternym.com
  tags:
  - Zodiac
  properties:
  - type: OpenAPI
    url: openapi/asternym-com-zodiac-api-openapi.yml
  - type: JSONSchema
    url: json-schema/asternym-com-engine-result-schema.json
  - type: JSONSchema
    url: json-schema/asternym-com-reading-schema.json
x-enrichment:
  date: '2026-11-01'
  status: enriched
  artifacts_added: 22
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

AsterNym API — frequently asked questions

Does AsterNym have an API?

Yes. APIs.io lists 5 APIs from AsterNym, including AsterNym Bazi API, AsterNym Natal API and AsterNym Numerology API, and 2 more.

Is there an OpenAPI specification for the AsterNym API?

Yes. APIs.io indexes 5 OpenAPI specifications for AsterNym, each linked for download from this page.

Does AsterNym have an MCP server?

Yes. APIs.io lists 1 MCP server for AsterNym: Remote MCP server at asternym.com.

Is the AsterNym API ready for AI agents?

AsterNym has a Kin Score of 30.3 out of 100 (thin) and an Agent Readiness score of 21.7 (agent-aware), scored by API Evangelist on 2026-11-02.

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