established · -1.4 capabilitymarket actiondomainschema

OpenAI-Compatible

Score 25.2 / 100 36 providers +32 via APIs 43 APIs Search apis.io →
Workflows using this tag
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Business capabilities this tag reaches
Information & Data Management 1

Providers using this tag (36)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 1 Complete, well-documented, and agent-ready
Opper AIArtificial IntelligenceGatewaysEuropean1 API67.1
Strong 4 Solid coverage with minor gaps
RightNow AICompanyArtificial IntelligenceMachine LearningInference1 API59.5NVIDIA NIMArtificial IntelligenceInferenceMicroservicesLLM3 APIs60.6Venice.aiCompanyArtificial IntelligenceLLMImage Generation1 API56.3OpenRelayCompanyGPUInferenceArtificial Intelligence1 API55.2
Developing 13 Usable, with meaningful gaps to close
BifrostAI GatewayLLMLoad BalancingOpen Source4 APIs53.2Multiverse ComputingArtificial IntelligenceMachine LearningInferenceModel Compression2 APIs48.0Standard ComputeLLM APIFlat RateSubscriptionAI Agents1 API47.0ToAPIsAI APILLM/AI gatewaymodel aggregation1 API44.0LibertAICompanyArtificial IntelligenceInferenceModel Routing2 APIs42.9TextcortexCompanyArtificial IntelligenceText GenerationLLM1 API40.5FriendliAICompanyInfrastructureArtificial IntelligenceMachine Learning1 API53.4AAA AIArtificial IntelligenceAgentsMulti-AgentLLM Orchestration1 API53.10G LabsArtificial IntelligenceInferenceLLMGPU Compute1 API48.8DiscountedTokens APIArtificial IntelligenceLLMGenerative AI Inference1 API45.0Novita AIArtificial IntelligenceLLMInferenceGPU1 API44.6RouterPlexLLMArtificial IntelligenceAI GatewayInference1 API43.5Adaptive MLCompanyArtificial IntelligenceLLMFine-Tuning1 API39.7
Thin 15 Limited public surface area
nexos.aiCompanyArtificial IntelligenceLLMAI Gateway1 API38.2Secton APIArtificial IntelligenceInferenceLLMChat Completions1 API37.3WeaveAPI - OpenAI-compatible AI API GatewayArtificial IntelligenceLLMInferenceAPI Gateway2 APIs34.1BasetenArtificial IntelligenceMachine LearningInferenceDeployment2 APIs31.3WanAPIsLLM GatewayAI API GatewayModel Marketplace1 API30.2GPTZZZArtificial IntelligenceLLM GatewayAPI Relay2 APIs27.0LinkAGI Model APIArtificial IntelligenceLLMAI API GatewayRelay1 API34.0AsterlabCompanyArtificial IntelligenceMachine LearningLLM1 API33.0TaalasCompanyArtificial IntelligenceInferenceSemiconductors2 APIs32.5PositronArtificial IntelligenceInferenceinference-hardwareAI Accelerators2 APIs32.2RekaArtificial IntelligenceMulti-ModalLLMSpeech1 API29.5WomboCompanyArtificial IntelligenceMachine LearningInference1 API28.7Kimi (Moonshot AI)LLMLong ContextArtificial Intelligence1 API28.1SiliconFlowArtificial IntelligenceLLMInferenceOpen Source1 API27.6HeabsyArtificial IntelligenceInferenceEU-regulated26.2
Emerging 3 Early or largely undocumented
vLLMLLMInferenceOpen SourceGPU1 API24.7bnrouterArtificial IntelligenceGatewaysMulti-Model3 APIs26.1OpenPipeArtificial IntelligenceLLMFine-TuningDistillation1 API25.5

APIs with this tag (42)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 3 Complete, well-documented, and agent-ready
Cloudflare OpenAI Compatible APIOpenAI-compatible endpoints for chat completions, text completions, embeddings, and responses.80.6AxonFlow OpenAI Compatible APIOpenAI-compatible gateway endpoint (Issue #2351). Accepts standard OpenAI Chat Completions requests, runs A...71.3SpicyAPI OpenAI Compatible APIOpenAI / Anthropic protocol shells under `/v1` and the Google Gemini shell under `/v1beta`. They share API ...68.3
Strong 7 Solid coverage with minor gaps
Nefesh Cognitive Compute RouterLLM gateway on gateway.nefesh.ai that injects the caller's live human state into the request and adjusts te...61.8NVIDIA NIM Completions APILegacy OpenAI-compatible text completion endpoint (/v1/completions) for non-chat foundation models served b...60.6NVIDIA NIM Embeddings APIOpenAI-compatible embeddings endpoint (/v1/embeddings) backed by NVIDIA NeMo Retriever text embedding model...60.6NVIDIA NIM Models APIOpenAI-compatible model catalog endpoint (/v1/models) returning the list of models served by the NIM endpoi...60.6Crusoe Managed Inference APIOpenAI-compatible inference API from the Crusoe Intelligence Foundry. Send chat/completions and embeddings ...57.4OpenRelay Inference APIOpenAI-compatible chat completions API (POST /v1/chat/completions) and, for supporting models, an Anthropic...55.2Inference.net APIOpenAI-compatible inference API for open-source, frontier, and custom language models — chat completions, b...54.4
Developing 8 Usable, with meaningful gaps to close
Prime Intellect Inference APIOpenAI-compatible inference API for hosted frontier and open models served at api.pinference.ai. Supports s...53.9Hyperbolic Serverless Inference APIOpenAI-compatible inference API for 25+ open-source models. Surfaces include text chat, vision, image gener...53.7AIHubMix OpenAI Compatible APIOpenAI-compatible endpoints (chat, completions, embeddings, images, audio, videos, moderations).52.2Lambda Inference APILambda Inference API is an OpenAI-compatible REST gateway at https://api.lambda.ai/v1 that serves hosted op...50.1AkashML Inference APIOpenAI-compatible AI inference API providing access to open-source LLMs hosted on decentralized compute acr...46.0ToAPIs APIOpenAI-compatible REST API covering chat/completions, image generation, video generation, and model listing...44.0Furiosa-LLM OpenAI-Compatible ServerThe HTTP server started by `furiosa-llm serve `. It hosts a single model on RNGD NPUs and exposes an Open43.4PLaMo APIThe PLaMo API is Preferred Networks' cloud service for its domestically developed PLaMo large language mode...39.7
Thin 17 Limited public surface area
W&B Serverless Inference (CoreWeave)OpenAI-compatible inference API for hosted open-source foundation models, running on CoreWeave GPU infrastr...36.4Cerebrium OpenAI Compatible APIThe OpenAI Compatible API from Cerebrium — 2 operation(s) for openai compatible.36.1IO Intelligence APIOpenAI-compatible inference API for open-source AI models hosted on io.net's decentralized GPU network. Exp...35.9WeaveAPI OpenAI-compatible APIOpenAI-wire-compatible REST API for chat completions, responses-style requests and the model catalog, authe...34.1LinkAGI Model API OpenAI compatible APIOpenAI-compatible Chat Completions and Responses routes.34.0vLLM OpenAI-Compatible APIvLLM is a high-throughput and memory-efficient inference engine for LLMs, implementing PagedAttention for e...33.8Aster Inference APIOpenAI-compatible inference API from Aster serving open-weight models (gpt-oss-120b, gpt-oss-120b-fast, GLM...33.0Dartmouth Chat AI APIAn OpenAI- and Anthropic-compatible API over large language, embedding and reranking models running on Dart...31.9Mango LLMBoost Inference Server APILLMBoost is MangoBoost's enterprise LLM inference server. It serves the OpenAI REST API on /v1 so an existi...30.8WanAPIs Unified AI APIOpenAI-compatible REST API gateway aggregating GPT, Claude, Gemini, DeepSeek, plus image, video, and audio ...30.2Glama AI GatewayOpenAI-compatible LLM gateway exposing 90+ models from OpenAI, Anthropic, Google, DeepSeek, Mistral, xAI, M...29.7Lingyiwanwu Platform APIOpenAI-compatible chat completions and vision endpoints for the Yi model family. Base URL https://api.lingy...29.6Volcano Engine Ark APIOpenAI-compatible chat, responses, embedding, batch, image (Seedream), video (Seedance), 3D, and TTS APIs s...28.8DashScope (Alibaba Cloud Model Studio) APINative Alibaba Cloud Model Studio API serving the Qwen model family. Provides chat completions, multimodal ...28.7GPTZZZ OpenAI-Compatible APIOpenAI-compatible relay interface. The docs give the Base URL https://gptzzz.ai/v1 for OpenAI-compatible cl...27.0TUD:AI LLM APIAn OpenAI-compatible LLM inference API operated by ZIH and ScaDS.AI Dresden/Leipzig for TU Dresden staff, s...27.0Cumulus Inference GatewayOpenAI-compatible HTTP inference gateway. One client works against every upstream provider; per-workflow ro...26.8
Emerging 4 Early or largely undocumented
King's e-Research AI Hub APIAn OpenAI-compatible LLM inference API operated by King's e-Research for researchers, students and staff. P...26.0Nebius Token FactoryNebius Token Factory is the AI model inference platform offering OpenAI-compatible endpoints for serving op...24.7vLLM OpenAI-Compatible ServerOpenAI-compatible REST API exposed by `vllm serve`. Endpoints include /v1/chat/completions, /v1/completions...24.7EigenAIEigenAI exposes deterministic, verifiable LLM inference over an OpenAI-compatible API surface, with executi...24.4
Minimal 3 Almost no public developer surface
NVIDIA DGX Cloud Lepton APIManaged AI platform API exposing model endpoints (HTTP server with OpenAI-compatible chat surface), dev ses...10.8Sakana Fugu API (Beta)Multi-agent orchestration system that routes tasks across frontier foundation models (OpenAI, Anthropic, Go...9.8OctoAI Text Gen Inference APIOpenAI-compatible chat and text-completion endpoints serving open-source LLMs including Llama 2, Llama 3, M...0.0

Companies reaching this through an API (32)

These companies publish an API, specification or operation carrying “OpenAI-Compatible” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

01.AI AIHubMix Akash Network AxonFlow ByteDance Doubao Cerebrium Cloudflare Crusoe Cumulus Labs Dartmouth College EigenLayer FuriosaAI Glama Hyperbolic Hyperbolic Inference io.net King's College London Lambda Lepton AI MangoBoost Nebius Nefesh AI OctoAI Preferred Networks Prime Intellect Qwen Sakana AI Scalable Inference Serving SpicyAPI TU Dresden Weights and Biases

Score breakdown

Frequency
51.4
log-scaled weighted occurrences
Breadth
0.8
spread across providers
Quality lift
42.2
mean composite of providers using it
Cohesion
24.6
strength of nearest seed neighbor

Related tags

Inference 47 co-occurrences Chat Completions 27 co-occurrences GPU 20 co-occurrences Anthropic Compatible 8 co-occurrences LLM 50 co-occurrences Completions 11 co-occurrences Models 26 co-occurrences Responses 9 co-occurrences

Where this tag comes from

Api tag43
Provider tag40
Openapi tag4
Openapi op tag9

Cohort brief

Auto-generated

The 35 providers in the APIs.io catalog tagged OpenAI-Compatible, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
35
of 36 in the catalog
Mean Kin Score
40.6
+18.4 vs catalog 22.2
Mean Agent Readiness
26.8
+14.8 vs catalog 12
Spread
24.7–67.1
median 39.7 · σ 11.5
How the 35 split by band
Exemplar 1Strong 4Developing 13Thin 14Emerging 3Minimal 0
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Developer Ergonomics 48.1 23.2 +24.9 35
Contract Quality 40.7 17.2 +23.5 35
Access Clarity 44.8 23.9 +20.9 35
Discoverability 72.2 57.9 +14.3 35
Operational Transparency 24.3 13 +11.3 35
Contract Governance 9.1 6.5 +2.6 35

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 20% 13% +7
MCP server (first-party) 23% 12% +11
Agent Skills 0% 0% 0
OAuth scopes 3% 11% -8
Security 100% 98% +2
Arazzo workflows 6% 2% +4
Governance rules 26% 16% +10

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Opper AI 67.1
  2. 2 NVIDIA NIM 60.6
  3. 3 RightNow AI 59.5
  4. 4 Venice.ai 56.3
  5. 5 OpenRelay 55.2
  6. 6 FriendliAI 53.4
  7. 7 Bifrost 53.2
  8. 8 AAA AI 53.1
  9. 9 0G Labs 48.8
  10. 10 Multiverse Computing 48
Top by Agent Readiness
  1. 1 Opper AI 51.8
  2. 2 AAA AI 44.5
  3. 3 Venice.ai 43.2
  4. 4 Bifrost 42.4
  5. 5 OpenRelay 40.4
  6. 6 FriendliAI 39.6
  7. 7 RouterPlex 37.2
  8. 8 Textcortex 37.2
  9. 9 Novita AI 35.3
  10. 10 Multiverse Computing 31.6
All 36 members of this roster resolve to a provider in the catalog; 35 carry a score (97%). The figures above describe the scored members only.
Coverage caveat. 29 of 35 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 24 October 2026, across 31984 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

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This tag 
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As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/openai-compatible"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/openai-compatible/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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