* fix(llms): sanitize trailing slashes in provider get_complete_url
* test(llms): move trailing-slash url tests into each provider's mapped unit file
* fix(llms): strip trailing slashes in Perplexity search and Ollama embedding URLs and run the Topaz tests in CI
* fix(llms): strip trailing slashes in search, DashScope, VolcEngine, GigaChat and Gradient AI URL builders
* fix(fastcrw): strip a trailing slash from api_base and expect one slash in the GigaChat tests
* fix(gigachat): strip a trailing slash from the pass-through api_base
* fix(llms): join api_base and route with one shared helper
A deployment api_base that ends in / made several get_complete_url builders emit a double slash, which Envoy and other gateways answer with 404. Add join_api_base in url_utils and use it in those builders, with a regression test that drives every get_complete_url under litellm/llms with a trailing-slash api_base
* refactor(llms): move per-provider api_base strips onto join_api_base
Use the shared join_api_base helper in the search, chat, embedding, image variation, GigaChat and VolcEngine URL builders instead of a per-provider rstrip and suffix check, so one helper owns the single-slash join
* ci: run the trailing-slash URL builder test in the llms shard
* test(integration): cover trailing-slash api_base across provider URL builders
Wire cells for chat, streaming, messages, responses, embeddings, search and pass-through with and without a trailing slash, an owned-proxy module for the flag-gated providers, env bases and a worker kill, two chaos bursts, and a Topaz SDK cell
* fix(llms): send every provider route through join_api_base
Every place under litellm/llms and litellm/main.py that joined a caller-settable api_base with a route by concatenation or f-string now goes through join_api_base, so an api_base with a trailing slash sends the same upstream path as one without it
Routes made only of a caller-supplied id, model, or passthrough path stay on a plain join over an already normalized base, because the helper's suffix dedup would turn a lookup by id into a list or create call
The sweep test now also reaches the factory-made JSON provider builders, and a new loopback test drives the public entrypoints with an api_base ending in /gw/ and checks that every request path keeps /gw/ with no double slash
* fix(llms): keep the route skip only where a builder already had it
join_api_base is a pure join again. The new ensure_api_route skips the route only when the URL path
already ends in it, and it is used only where the merge base or the trailing-slash test PR head
already skipped. Evals cancel, Predibase, and Azure AI threads append their route again, EdenAI
model listing and Gemini RAG ingestion join through join_api_base, and Azure AI Anthropic checks the
path so a host named anthropic-* builds /anthropic/v1/messages
* fix(azure_ai): read /anthropic from the URL path when building the count_tokens URL
* test(llms): run the Gemini RAG trailing-slash case through aingest
The sync ingest wrapper needs a current event loop, which an earlier async test in the same worker clears
* test(llms): cover the Azure realtime, Bedrock rerank, and oobabooga joins with a trailing-slash api_base
* test(integration): cover api_base joins across providers, query strings and named hosts
* feat(url_utils): add join_api_base and ensure_api_route helpers
* fix(url_utils): keep the scheme slashes when a stripped suffix was the whole host
join_api_base and ensure_api_route now keep the // of a base left with only a scheme,
so http://v1 with /v1 stripped joins to http://v1/files as before. The Azure v1 client
base_url goes through ensure_api_route so a base ending in /openai/v1 no longer doubles it
* fix(azure_ai): build the count_tokens URL from the messages URL
* fix(azure_ai): match anthropic as a whole path segment in the messages URL
* fix(llms): keep main's Azure AI anthropic match and non-string Bedrock endpoints
Azure AI chat and messages go back to cutting the base at the first
/anthropic, as on main, and count_tokens keeps its path check, so a
gateway path like /anthropic-proxy builds the same URLs as main. A base
that already ends in /v1/messages still gets count_tokens next to it.
A non-string aws_bedrock_runtime_endpoint (an httpx.URL VPC endpoint) is
used as its text again in AgentCore, Bedrock responses and the RAGFlow
base, instead of falling back to the default host.
get_volcengine_base_url and GigaChat's get_api_base strip a trailing
slash again for outside callers. The cache-hit wire test is skipped as a
known proxy bug, since one cache hit writes two cache_hit spend rows.
* fix(llms): drop a slash before the api_base query and tighten the route test checks
* test(llms): annotate new test locals as Final and flatten the builder generator
* fix(url_utils): keep a scheme-only api_base hostless so it fails before sending
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Co-authored-by: Raushankumar0720 <raushan.singh.cg@gmail.com>
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