
omni-inference
The core OpenAI-compatible inference endpoints: chat completions, embeddings, images, audio (TTS/STT), moderations, rerank, and the Responses API. The primary integration surface for AI agents.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/cheaper-inference/omniroute --skill omni-inference- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads omni-inference automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Overview
The core OpenAI-compatible inference endpoints: chat completions, embeddings, images, audio (TTS/STT), moderations, rerank, and the Responses API. The primary integration surface for AI agents.
Authentication
All requests require a valid Bearer token or session cookie. Obtain a token via POST /api/auth/login or configure REQUIRE_API_KEY=false for local development.
Endpoints
POST /api/v1/session-leasesGET /api/v1/searchPOST /api/v1/searchPOST /api/v1/chat/completionsGET /api/v1/wsPOST /api/v1/providers/{provider}/chat/completionsPOST /api/v1/api/chatPOST /api/v1/messagesPOST /api/v1/messages/count_tokensPOST /api/v1/responsesPOST /api/v1/embeddingsGET /api/v1/multimodal-embeddingsPOST /api/v1/multimodal-embeddingsPOST /api/v1/providers/{provider}/embeddingsPOST /api/v1/images/generationsPOST /api/v1/providers/{provider}/images/generationsPOST /api/v1/audio/speechPOST /api/v1/audio/transcriptionsPOST /api/v1/moderationsPOST /api/v1/rerankGET /api/v1GET /api/v1/providers/{provider}/modelsGET /api/v1/management/proxy-subscriptionsPOST /api/v1/management/proxy-subscriptionsGET /api/v1/management/proxy-subscriptions/{id}PATCH /api/v1/management/proxy-subscriptions/{id}DELETE /api/v1/management/proxy-subscriptions/{id}GET /api/v1/management/proxy-subscriptions/{id}/nodesPOST /api/v1/management/proxy-subscriptions/{id}/refreshPOST /api/v1/ocrPOST /api/v1/audio/translationsGET /api/v1/voicesPOST /api/v1/speech-to-textPOST /api/v1/text-to-speech/{voiceId}POST /api/v1/sound-generationPOST /api/v1/musicPOST /api/v1/music/streamPOST /api/v1/music/detailedPOST /api/v1/music/detailed/streamPOST /api/v1/music/planGET /api/v1/explain/routingGET /api/v1/providers/suggested-modelsGET /api/v1/provider-plugin-manifestGET /api/v1/{omnirouteCatchAll}POST /api/v1/{omnirouteCatchAll}PUT /api/v1/{omnirouteCatchAll}PATCH /api/v1/{omnirouteCatchAll}DELETE /api/v1/{omnirouteCatchAll}GET /api/v1/accounts/{id}/limitsPUT /api/v1/accounts/{id}/limitsGET /api/v1/agents/credentialsPOST /api/v1/agents/credentialsGET /api/v1/agents/healthGET /api/v1/agents/tasksPOST /api/v1/agents/tasksDELETE /api/v1/agents/tasksGET /api/v1/agents/tasks/{id}POST /api/v1/agents/tasks/{id}DELETE /api/v1/agents/tasks/{id}POST /api/v1/antigravityGET /api/v1/auto-combo/{channel}/candidatesGET /api/v1/batchesPOST /api/v1/batchesGET /api/v1/batches/{id}DELETE /api/v1/batches/{id}POST /api/v1/batches/{id}/cancelDELETE /api/v1/batches/delete-completedPOST /api/v1/classifyGET /api/v1/combosPOST /api/v1/completionsGET /api/v1/filesPOST /api/v1/filesGET /api/v1/files/{id}DELETE /api/v1/files/{id}GET /api/v1/files/{id}/contentPOST /api/v1/images/editsGET /api/v1/images/upscalePOST /api/v1/images/upscaleGET /api/v1/media/{id}POST /api/v1/issues/reportGET /api/v1/management/proxiesPOST /api/v1/management/proxiesPATCH /api/v1/management/proxiesDELETE /api/v1/management/proxiesGET /api/v1/management/proxies/assignmentsPUT /api/v1/management/proxies/assignmentsPUT /api/v1/management/proxies/bulk-assignGET /api/v1/management/proxies/healthGET /api/v1/me/statusGET /api/v1/muse-code/modelsGET /api/v1/music/generationsPOST /api/v1/music/generationsGET /api/v1/providers/{provider}/limitsPUT /api/v1/providers/{provider}/limitsGET /api/v1/quotas/checkGET /api/v1/registered-keysPOST /api/v1/registered-keysGET /api/v1/registered-keys/{id}DELETE /api/v1/registered-keys/{id}POST /api/v1/registered-keys/{id}/revokePOST /api/v1/relay/chat/completionsPOST /api/v1/relay/chat/completions/bifrostPOST /api/v1/responses/{path}GET /api/v1/search/analyticsPOST /api/v1/segmentGET /api/v1/video-bridge/drilldownDELETE /api/v1/video-bridge/drilldownGET /api/v1/videos/generationsPOST /api/v1/videos/generationsGET /api/v1/vscode/{token}POST /api/v1/vscode/{token}/api/chatPOST /api/v1/vscode/{token}/api/showGET /api/v1/vscode/{token}/api/tagsGET /api/v1/vscode/{token}/api/versionPOST /api/v1/vscode/{token}/chat/completionsGET /api/v1/vscode/{token}/combosGET /api/v1/vscode/{token}/modelsPOST /api/v1/vscode/{token}/responsesPOST /api/v1/vscode/{token}/v1/chat/completionsGET /api/v1/vscode/{token}/v1/modelsGET /api/v1/vscode/combos/{token}/{{slug}}POST /api/v1/vscode/combos/{token}/{{slug}}GET /api/v1/vscode/raw/{token}POST /api/v1/vscode/raw/{token}/api/chatPOST /api/v1/vscode/raw/{token}/api/showGET /api/v1/vscode/raw/{token}/api/tagsGET /api/v1/vscode/raw/{token}/api/versionPOST /api/v1/vscode/raw/{token}/chat/completionsGET /api/v1/vscode/raw/{token}/combosGET /api/v1/vscode/raw/{token}/modelsPOST /api/v1/vscode/raw/{token}/responsesPOST /api/v1/vscode/raw/{token}/v1/chat/completionsGET /api/v1/vscode/raw/{token}/v1/modelsPOST /api/v1/web/fetch
Payloads
See the full OpenAPI specification at GET /api/openapi/spec or docs/openapi.yaml for detailed request/response schemas.
Chat completions
Requires OMNIROUTE_URL and OMNIROUTE_KEY. See entry-point SKILL for setup.
Endpoints
POST $OMNIROUTE_URL/v1/chat/completions— OpenAI formatPOST $OMNIROUTE_URL/v1/messages— Anthropic Messages formatPOST $OMNIROUTE_URL/v1/responses— OpenAI Responses API
Discover
curl $OMNIROUTE_URL/v1/models | jq '.data[].id'
Combos (e.g. auto, cost-optimized, subscription) auto-fallback through multiple providers.
OpenAI format example
curl -X POST $OMNIROUTE_URL/v1/chat/completions \
-H "Authorization: Bearer $OMNIROUTE_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-opus-4-7",
"messages": [{"role": "user", "content": "Refactor this function"}],
"stream": true
}'
Anthropic format example
curl -X POST $OMNIROUTE_URL/v1/messages \
-H "Authorization: Bearer $OMNIROUTE_KEY" \
-H "anthropic-version: 2023-06-01" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-opus-4-7",
"max_tokens": 4096,
"messages": [{"role": "user", "content": "Hi"}]
}'
Tool use
Supports OpenAI tools array and Anthropic tools block. Tool results
auto-compressed via RTK (47 filters: git-diff, grep, test-jest, terraform-plan,
docker-logs, etc.) — 20-40% token savings. Disable per-request with
X-Omniroute-Rtk: off header.
Reasoning / thinking
Anthropic extended thinking and OpenAI Responses reasoning blocks are forwarded verbatim. Cached automatically via reasoning cache.
Errors
401→ invalid API key400 invalid_model→ model not in registry; check/v1/models503 circuit_open→ provider circuit breaker tripped; retry later or use combo429 rate_limited→ honorRetry-After; consider using a combo for auto-fallback
Image generation
Requires OMNIROUTE_URL and OMNIROUTE_KEY. See entry-point SKILL for setup.
Endpoints
POST $OMNIROUTE_URL/v1/images/generations— Text-to-imagePOST $OMNIROUTE_URL/v1/images/edits— Image edit (mask)POST $OMNIROUTE_URL/v1/images/variations— Variations
Discover
curl $OMNIROUTE_URL/v1/models/image | jq '.data[]'
Returns { id, owned_by, sizes:[...], capabilities:[...] } per model.
Generate example
curl -X POST $OMNIROUTE_URL/v1/images/generations \
-H "Authorization: Bearer $OMNIROUTE_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "dall-e-3",
"prompt": "a red bicycle on a wet street, photoreal",
"n": 1,
"size": "1024x1024",
"response_format": "b64_json"
}'
Response: { created, data: [{ url? or b64_json, revised_prompt }] }
Errors
400 invalid_size→ not supported by this model; check/v1/models/image400 content_policy_violation→ blocked by provider safety503→ provider unavailable; try another model in/v1/models/image
Text-to-speech
Requires OMNIROUTE_URL and OMNIROUTE_KEY. See entry-point SKILL for setup.
Endpoint
POST $OMNIROUTE_URL/v1/audio/speech— returns binary audio (mp3/opus/wav/flac)
Discover
curl $OMNIROUTE_URL/v1/models/tts | jq '.data[]'
Each entry includes voices:[...] for the available voice names per provider.
Example
curl -X POST $OMNIROUTE_URL/v1/audio/speech \
-H "Authorization: Bearer $OMNIROUTE_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "tts-1",
"input": "Hello from OmniRoute.",
"voice": "alloy",
"response_format": "mp3"
}' --output speech.mp3
Voices
Voice names vary by provider. Check /v1/models/tts — each entry has voices:[...].
Common OpenAI voices: alloy, echo, fable, onyx, nova, shimmer.
Errors
400 invalid_voice→ voice not supported by this model400 input_too_long→ input exceeds model character limit503→ provider unavailable; try another model in/v1/models/tts
Speech-to-text
Requires OMNIROUTE_URL and OMNIROUTE_KEY. See entry-point SKILL for setup.
Endpoints
POST $OMNIROUTE_URL/v1/audio/transcriptions— multipart upload, returns textPOST $OMNIROUTE_URL/v1/audio/translations— transcribe + translate to English
Discover
curl $OMNIROUTE_URL/v1/models/stt | jq '.data[]'
Example
curl -X POST $OMNIROUTE_URL/v1/audio/transcriptions \
-H "Authorization: Bearer $OMNIROUTE_KEY" \
-F "file=@audio.mp3" \
-F "model=whisper-1" \
-F "response_format=verbose_json"
Response: { text, language, duration, segments?:[{ start, end, text }] }
Supported formats
Audio: mp3, mp4, mpeg, mpga, m4a, wav, webm.
Response formats: json, text, srt, verbose_json, vtt.
Errors
400 invalid_file_format→ unsupported audio format400 file_too_large→ exceeds provider limit (usually 25MB)503→ provider unavailable; try another model in/v1/models/stt
Embeddings
Requires OMNIROUTE_URL and OMNIROUTE_KEY. See entry-point SKILL for setup.
Endpoint
POST $OMNIROUTE_URL/v1/embeddings
Discover
curl $OMNIROUTE_URL/v1/models/embedding | jq '.data[]'
Each entry: { id, owned_by, dimensions, max_input_tokens }.
Example
curl -X POST $OMNIROUTE_URL/v1/embeddings \
-H "Authorization: Bearer $OMNIROUTE_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "text-embedding-3-large",
"input": ["first text", "second text"],
"encoding_format": "float"
}'
Response: { data:[{ embedding:[...], index }], usage:{ prompt_tokens, total_tokens } }
Batch input
input accepts a string or array of strings (up to provider batch limit, typically 2048 items).
Errors
400 input_too_long→ input exceedsmax_input_tokensfor this model400 invalid_encoding_format→ usefloatorbase64503→ provider unavailable; try another model in/v1/models/embedding
Web search
Requires OMNIROUTE_URL and OMNIROUTE_KEY. See entry-point SKILL for setup.
Endpoint
POST $OMNIROUTE_URL/v1/web/search— unified search format
Discover
curl $OMNIROUTE_URL/v1/models/web | jq '.data[] | select(.kind == "webSearch")'
Example
curl -X POST $OMNIROUTE_URL/v1/web/search \
-H "Authorization: Bearer $OMNIROUTE_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "tavily/search",
"query": "OmniRoute github latest release",
"max_results": 5,
"include_answer": true
}'
Response: { answer?, results:[{ url, title, content, score }] }
Parameters
| Field | Type | Description |
|---|---|---|
model | string | Provider model from /v1/models/web |
query | string | Search query |
max_results | number | Max results (default: 5) |
include_answer | boolean | Include AI-synthesized answer |
search_depth | string | basic or advanced (Tavily) |
Errors
400 query_too_long→ shorten the search query503→ provider unavailable; try another model in/v1/models/web
Web fetch
Requires OMNIROUTE_URL and OMNIROUTE_KEY. See entry-point SKILL for setup.
Endpoint
POST $OMNIROUTE_URL/v1/web/fetch
Discover
curl $OMNIROUTE_URL/v1/models/web | jq '.data[] | select(.kind == "webFetch")'
Example
curl -X POST $OMNIROUTE_URL/v1/web/fetch \
-H "Authorization: Bearer $OMNIROUTE_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "jina/reader",
"url": "https://anthropic.com",
"format": "markdown"
}'
Response: { url, title, markdown, links?:[...], images?:[...] }
Parameters
| Field | Type | Description |
|---|---|---|
model | string | Provider from /v1/models/web (e.g. jina/reader, firecrawl/scrape) |
url | string | URL to fetch |
format | string | markdown (default), html, text |
Errors
400 invalid_url→ URL must be http/https403 blocked→ provider blocked by target site; try a different model503→ provider unavailable; try another model in/v1/models/web
FAQ
What does the omni-inference skill do?
The core OpenAI-compatible inference endpoints: chat completions, embeddings, images, audio (TTS/STT), moderations, rerank, and the Responses API. The primary integration surface for AI agents.
How do I install omni-inference?
Run npx skills add https://github.com/cheaper-inference/omniroute --skill omni-inference in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/omni-inference/ (personal) or .claude/skills/omni-inference/ (project).
Which AI agents can use omni-inference?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is omni-inference safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains omni-inference?
It is published by cheaper-inference in cheaper-inference/omniroute. It has 1,099 recorded installs.
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