LinkAGI Model API

LinkAGI is a Chinese third-party AI API relay (中转站) that fronts a pool of upstream model accounts behind a single host, api.linktoagi.com, and re-exposes them on three imitated vendor protocols: OpenAI-compatible Chat Completions and Responses, an Anthropic Messages-shaped route, and a Gemini generateContent-shaped route. It is sold to developers running Codex, Claude Code, Gemini CLI and desktop chat clients who want a CNY, prepaid, pay-as-you-go base-URL swap instead of a foreign card and a vendor account. A token belongs to a group (号池) that decides which models it can address and at what billing ratio; the live model and price table is published unauthenticated at /api/pricing. The service runs the open-source New API gateway and publishes a first-party OpenAPI 3.1, APIs.json, llms.txt and Postman collection, plus an unusually candid evidence boundary that marks its Anthropic and Gemini compatibility as advertised but unverified.

LinkAGI Model API publishes 5 API contracts indexed on the APIs.io network, including Anthropic-style route API, Discovery API, Gemini-style route API, and 2 more. Tagged areas include Artificial Intelligence, LLM, AI API Gateway, Relay, and OpenAI-Compatible.

The LinkAGI Model API catalog on APIs.io includes 1 Spectral governance ruleset.

LinkAGI Model API’s developer surface includes authentication, documentation, getting-started guide, support, engineering blog, GitHub presence, pricing, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

37.2/100 thin ▬ flat Agent 25/100 agent aware Heartbeat 62/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 3 Agent Skills

Artificial Intelligence LLMAI API GatewayRelay OpenAI-Compatible Anthropic CompatibleGemini-compatibleDeveloper ToolsCLI coding agentsModel Routing China

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 37.2/100 · thin

Contract Quality 11.0 / 19

Developer Ergonomics 6.7 / 15

Access Clarity 0.0 / 15

Operational Transparency 3.6 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 2.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 25/100 · 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 8 / 8

Request/Response Examples 7 / 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 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
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):

Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 44.6 — up to +11.1 composite points
Contract Quality scores 58.4 — up to +10.4 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/linkagi-model-api/apis.yml: open an issue on github.com/api-evangelist/linkagi-model-api 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.

LinkAGI Model API Anthropic-style route API

Messages-shaped route advertised by the service. The route reaches authentication without a key; authenticated native compatibility has not been verified in the latest evidence ...

LinkAGI Model API Discovery API

Inspect the models visible to the current token group.

LinkAGI Model API Gemini-style route API

generateContent-shaped route advertised by the service. The route reaches authentication without a key; authenticated native compatibility has not been verified in the latest ev...

LinkAGI Model API OpenAI compatible API

OpenAI-compatible Chat Completions and Responses routes.

LinkAGI Model API Public metadata API

Unauthenticated service status and live pricing metadata.

Open Collections 5

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

LinkAGI Anthropic-style route API

OPEN COLLECTION

LinkAGI Discovery API

OPEN COLLECTION

LinkAGI Gemini-style route API

OPEN COLLECTION

LinkAGI OpenAI compatible API

OPEN COLLECTION

LinkAGI Public metadata API

OPEN COLLECTION

Agent Skills 3

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

Point Codex at LinkAGI and call the Responses route

AGENT SKILL

Select a live model and call LinkAGI Chat Completions

AGENT SKILL

Use the LinkAGI Anthropic-style and Gemini-style routes

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

LinkAGI Model API API Rules

70 rules · 67 errors 2 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Linkagi Model Api Openapi Overlay

9 actions · update · linkagi-model-api-openapi.json

DERIVED

Security Posture 2

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

Linkagi Model Api Authentication

apiKey/http · 3 schemes

SECURITY

Linkagi Model Api Domain Security

TLSv1.3

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conventions

ErrorCatalog

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Postman

Postman

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

BlogRSS

BlogRSS

Other 2

Properties that don't map to a standard resource type

Overlay

Overlay

APIsJSON

APIsJSON

Source (apis.yml)

name: LinkAGI Model API
description: 'LinkAGI is a Chinese third-party AI API relay (中转站) that fronts a pool of upstream model accounts behind a single
  host, api.linktoagi.com, and re-exposes them on three imitated vendor protocols: OpenAI-compatible Chat Completions and
  Responses, an Anthropic Messages-shaped route, and a Gemini generateContent-shaped route. It is sold to developers running
  Codex, Claude Code, Gemini CLI and desktop chat clients who want a CNY, prepaid, pay-as-you-go base-URL swap instead of
  a foreign card and a vendor account. A token belongs to a group (号池) that decides which models it can address and at what
  billing ratio; the live model and price table is published unauthenticated at /api/pricing. The service runs the open-source
  New API gateway and publishes a first-party OpenAPI 3.1, APIs.json, llms.txt and Postman collection, plus an unusually candid
  evidence boundary that marks its Anthropic and Gemini compatibility as advertised but unverified.'
url: https://raw.githubusercontent.com/api-evangelist/linkagi-model-api/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - 16871233/linkagi-api-starter
  open_source: unknown
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - openapi
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://api.linktoagi.com/favicon.svg
created: '2026-08-04'
modified: '2026-08-09'
specificationVersion: '0.23'
tags:
- Artificial Intelligence
- LLM
- AI API Gateway
- Relay
- OpenAI-Compatible
- Anthropic Compatible
- Gemini-compatible
- Developer Tools
- CLI coding agents
- Model Routing
- China
tags_raw:
- AI
- LLM
- AI API gateway
- relay
- OpenAI-compatible
- Anthropic-compatible
- Gemini-compatible
- developer tools
- CLI coding agents
- model routing
- China
apis:
- aid: linkagi-model-api:linkagi-model-api-anthropic-style-route-api
  name: LinkAGI Model API Anthropic-style route API
  description: Messages-shaped route advertised by the service. The route reaches authentication without a key; authenticated
    native compatibility has not been verified in the latest evidence set.
  humanURL: https://docs.linktoagi.com/
  baseURL: https://api.linktoagi.com
  tags:
  - Anthropic-style route
  properties:
  - type: OpenAPI
    url: openapi/linkagi-model-api-anthropic-style-route-api-openapi.yml
  - type: DataModel
    url: data-model/linkagi-model-api-data-model.yml
- aid: linkagi-model-api:linkagi-model-api-discovery-api
  name: LinkAGI Model API Discovery API
  description: Inspect the models visible to the current token group.
  humanURL: https://docs.linktoagi.com/
  baseURL: https://api.linktoagi.com
  tags:
  - Discovery
  properties:
  - type: OpenAPI
    url: openapi/linkagi-model-api-discovery-api-openapi.yml
  - type: DataModel
    url: data-model/linkagi-model-api-data-model.yml
- aid: linkagi-model-api:linkagi-model-api-gemini-style-route-api
  name: LinkAGI Model API Gemini-style route API
  description: generateContent-shaped route advertised by the service. The route reaches authentication without a key; authenticated
    native compatibility has not been verified in the latest evidence set.
  humanURL: https://docs.linktoagi.com/
  baseURL: https://api.linktoagi.com
  tags:
  - Gemini-style route
  properties:
  - type: OpenAPI
    url: openapi/linkagi-model-api-gemini-style-route-api-openapi.yml
  - type: DataModel
    url: data-model/linkagi-model-api-data-model.yml
- aid: linkagi-model-api:linkagi-model-api-openai-compatible-api
  name: LinkAGI Model API OpenAI compatible API
  description: OpenAI-compatible Chat Completions and Responses routes.
  humanURL: https://docs.linktoagi.com/
  baseURL: https://api.linktoagi.com
  tags:
  - OpenAI-Compatible
  tags_raw:
  - OpenAI compatible
  properties:
  - type: OpenAPI
    url: openapi/linkagi-model-api-openai-compatible-api-openapi.yml
  - type: DataModel
    url: data-model/linkagi-model-api-data-model.yml
- aid: linkagi-model-api:linkagi-model-api-public-metadata-api
  name: LinkAGI Model API Public metadata API
  description: Unauthenticated service status and live pricing metadata.
  humanURL: https://docs.linktoagi.com/
  baseURL: https://api.linktoagi.com
  tags:
  - Public metadata
  properties:
  - type: OpenAPI
    url: openapi/linkagi-model-api-public-metadata-api-openapi.yml
  - type: DataModel
    url: data-model/linkagi-model-api-data-model.yml
maintainers:
- FN: LinkAGI Support
  email: linktoagi@163.com
  url: https://docs.linktoagi.com/about.html#support
  organizationName: 福州市鼓楼区瀚海星矩网络技术工作室（个体工商户）
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 88
  at: '2026-08-04T14:15:08.769Z'
common:
- type: Website
  url: https://www.linktoagi.com/
- type: X-MCPServerCandidate
  url: mcp/linkagi-model-api-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: Overlay
  url: overlays/linkagi-model-api-openapi-overlay.yaml
- type: DomainSecurity
  url: security/linkagi-model-api-domain-security.yml
- type: Authentication
  url: authentication/linkagi-model-api-authentication.yml
- type: DeveloperPortal
  url: https://api.linktoagi.com/
- type: Documentation
  url: https://docs.linktoagi.com/
- type: GettingStarted
  url: https://docs.linktoagi.com/codex-api.html
- type: Support
  url: https://docs.linktoagi.com/about.html#support
- type: Blog
  url: https://docs.linktoagi.com/articles/
- type: BlogRSS
  url: https://docs.linktoagi.com/feed.xml
- type: GitHub
  url: https://github.com/16871233/linkagi-api-starter
- type: Pricing
  url: https://api.linktoagi.com/pricing
- type: SignUp
  url: https://api.linktoagi.com/register
- type: TermsOfService
  url: https://api.linktoagi.com/user-agreement
- type: PrivacyPolicy
  url: https://api.linktoagi.com/privacy-policy
- type: StatusPage
  url: https://docs.linktoagi.com/status.html
- type: Postman
  url: https://www.postman.com/lhs-1-s-team/linkagi-api/collection/8nl8r40/linkagi-api
- type: APIsJSON
  url: https://docs.linktoagi.com/apis.json
- type: LLMsTxt
  url: llms/linkagi-model-api-llms.txt
- type: ChangeLog
  url: changelog/linkagi-model-api-changelog.yml
- type: Lifecycle
  url: lifecycle/linkagi-model-api-lifecycle.yml
- type: Conventions
  url: conventions/linkagi-model-api-conventions.yml
- type: ErrorCatalog
  url: errors/linkagi-model-api-problem-types.yml
- type: Conformance
  url: conformance/linkagi-model-api-conformance.yml
- type: Packages
  url: packages/linkagi-model-api-packages.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-08-09'
  status: enriched
  artifacts_added: 18
  pass: local-v1

LinkAGI Model API — frequently asked questions

Does LinkAGI Model API have an API?

Yes. APIs.io lists 5 APIs from LinkAGI Model API, including LinkAGI Model API Anthropic-style route API, LinkAGI Model API Discovery API and LinkAGI Model API Gemini-style route API, and 2 more.

Is there an OpenAPI specification for the LinkAGI Model API?

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

How do I authenticate with the LinkAGI Model API?

LinkAGI Model API uses bearer-token authentication (apiKey/http · 3 schemes). The details are profiled on APIs.io as Linkagi Model Api Authentication.

Is the LinkAGI Model API ready for AI agents?

LinkAGI Model API has a Kin Score of 37.2 out of 100 (thin) and an Agent Readiness score of 25.0 (agent-aware), scored by API Evangelist on 2026-11-06.

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