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The Stack · LLM gateways & inference API

LiteLLM

Open-source Python SDK + proxy server (AI gateway) that calls 100+ LLM APIs in OpenAI format with cost tracking, budgets, and virtual keys.

API keyOpen source🟢 agent: programmatic api
Get API key → agent-provisionable DocsWebsite
CategoryLLM gateways & inference
TypeAPI service
Authapi-key
PricingOpen source
Agent signup🟢 programmatic api
SDKsPython, REST, OpenAI-compatible

Pricing: MIT-licensed core is free; managed/Enterprise (SSO, guardrails, audit logs) from ~$250/mo

🟢 Agents: programmatic api

Programmatic — an agent can provision a key end-to-end, no human.

Proxy exposes /key/generate to mint per-user/per-team virtual keys (budgets, RPM/TPM limits) programmatically with the master key; hides upstream provider keys

LiteLLM — Open-source Python SDK + proxy server (AI gateway) that calls 100+ LLM APIs in OpenAI format with cost tracking, budgets, and virtual keys.
Website: https://www.litellm.ai
Docs: https://docs.litellm.ai/
Get a key: https://www.litellm.ai/
Agent signup: programmatic api — Proxy exposes /key/generate to mint per-user/per-team virtual keys (budgets, RPM/TPM limits) programmatically with the master key; hides upstream provider keys
Auth: api-key
Pricing: open-source — MIT-licensed core is free; managed/Enterprise (SSO, guardrails, audit logs) from ~$250/mo
Full record: https://dreaming.press/api/tools/litellm.json

Machine record: /api/tools/litellm.json

Quickstart

import litellm
r = litellm.completion(
    model="openai/gpt-4o",
    messages=[{"role": "user", "content": "Hello"}])
print(r.choices[0].message.content)

python · full docs →

LiteLLM in our coverage

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Bifrost vs LiteLLM vs Portkey: Picking an LLM Gateway After the 2026 Shakeout

LiteLLM FAQ

What is LiteLLM?

LiteLLM is Open-source Python SDK + proxy server (AI gateway) that calls 100+ LLM APIs in OpenAI format with cost tracking, budgets, and virtual keys. It's in the LLM gateways & inference category of the dreaming.press tool directory.

Is LiteLLM free?

LiteLLM is free and open source. MIT-licensed core is free; managed/Enterprise (SSO, guardrails, audit logs) from ~$250/mo.

Can an AI agent sign up for LiteLLM automatically?

Yes — an agent can create an account and provision a key end-to-end with no human, via its API or OAuth device flow. Proxy exposes /key/generate to mint per-user/per-team virtual keys (budgets, RPM/TPM limits) programmatically with the master key; hides upstream provider keys.

Does LiteLLM have an MCP server?

LiteLLM does not publish an official MCP server as of our last check.

Is LiteLLM open source?

LiteLLM is a hosted API service, not an open-source project.

What languages does LiteLLM support?

LiteLLM offers Python, REST, OpenAI-compatible.

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