# LLM Gateway

**Canonical:** https://apis.io/providers/llmgateway-io/  
**Website:** https://llmgateway.io  
**APIs profiled:** 1

LLM Gateway is an OpenAI-compatible LLM gateway: one API key routes chat completions, embeddings, images, audio, video, moderation, OCR, rerank, web search and typed decisions across model providers. It publishes an OpenAPI 3.0 contract at https://api.llmgateway.io/openapi.json, which includes POST /v1/decisions (OpenAI-compatible typed, probabilistic decisions) and POST /v1/systemone (the TypeSafe System One-compatible endpoint, documented as legacy and to be deprecated in favor of /v1/decisions). An MCP server (Streamable HTTP) is served at /mcp with OAuth metadata at /.well-known/oauth-authorization-server and /.well-known/oauth-protected-resource.

## Kin Score — 51.8 / 100 (developing)

Scored 2026-11-02 under rubric 0.26.0. Trend: flat (+0.0 from 51.8).

| Facet | Score |
|---|---|
| Discoverability | 73.2 |
| Contract Quality | 50.4 |
| Contract Governance | 22.0 |
| Operational Transparency | 21.1 |
| Developer Ergonomics | 45.2 |
| Access Clarity | 81.6 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 27.3 (matched via fallback).

## Agent readiness — 48.6 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | served |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | verified |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | served |
| Protected Resource Metadata | verified |
| Dynamic Client Registration | yes |
| Agentic Commerce | no |
| Pagination Ratio | no |
| Operation Distinctiveness | distinct |
| MCP Tool Quality | na |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: medium).

## APIs (17)

- **LLM Gateway MCP Server** — Model Context Protocol server (Streamable HTTP) at /mcp, as stated in the OpenAPI info.description; not probed further.
- **LLM Gateway Audio API** — The Audio API from LLM Gateway — 2 operation(s) for audio.
- **LLM Gateway Decisions API** — The Decisions API from LLM Gateway — 1 operation(s) for decisions.
- **LLM Gateway Embeddings API** — The Embeddings API from LLM Gateway — 1 operation(s) for embeddings.
- **LLM Gateway Images API** — The Images API from LLM Gateway — 2 operation(s) for images.
- **LLM Gateway Key API** — The Key API from LLM Gateway — 1 operation(s) for key.
- **LLM Gateway LLM Gateway API** — The LLM Gateway API API from LLM Gateway — 1 operation(s) for llm gateway api.
- **LLM Gateway Messages API** — The Messages API from LLM Gateway — 1 operation(s) for messages.
- **LLM Gateway Models API** — The Models API from LLM Gateway — 1 operation(s) for models.
- **LLM Gateway Moderations API** — The Moderations API from LLM Gateway — 1 operation(s) for moderations.
- **LLM Gateway Ocr API** — The Ocr API from LLM Gateway — 1 operation(s) for ocr.
- **LLM Gateway Realtime API** — The Realtime API from LLM Gateway — 1 operation(s) for realtime.
- **LLM Gateway Rerank API** — The Rerank API from LLM Gateway — 1 operation(s) for rerank.
- **LLM Gateway Search API** — The Search API from LLM Gateway — 1 operation(s) for search.
- **LLM Gateway Systemone API** — The Systemone API from LLM Gateway — 1 operation(s) for systemone.
- **LLM Gateway Videos API** — The Videos API from LLM Gateway — 4 operation(s) for videos.
- **LLM Gateway Chat Completions API** — The Chat Completions API from LLM Gateway — 1 operation(s) for chat completions.

## MCP servers (1)

- **LLM Gateway MCP Server**

## Agentic access (1)

- **Llmgateway Io Agentic Access** — 21 operations · 14 acting

## Security (3)

- **Llmgateway Io Authentication** — http · 1 scheme
- **Llmgateway Io Domain Security** — TLSv1.3 · HSTS · DMARC
- **Llmgateway Io Trust Center** — SOC 2, ISO 27001, PCI DSS, HIPAA, GDPR

## Plans (1)

- **Llmgateway Io Plans Pricing**

## Tags

Artificial Intelligence, LLM Gateway, Decision Support, Structured Outputs, Inference, MCP

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/llmgateway-io/). Scores are computed from the provider's own public artifacts under a published rubric.