Integration
Connect Langfuse and Vast.ai
When New Trace fires in Langfuse, your agent runs Get Current User in Vast.ai, or New Matching Offer in Vast.ai to Add Comment in Langfuse. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want Langfuse and Vast.ai to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiOne connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.
Set it up in your client
Claude Code
Run this in the directory you want to work in.
claude mcp add --transport http -s project apiant-ai https://mcp.apiant.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)Claude, web and desktop
Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.
Setup guide (opens in a new tab)Cursor
Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.
Setup guide (opens in a new tab)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)Codex and the ChatGPT desktop app
Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.
Setup guide (opens in a new tab)Any other MCP client
Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.
Setup guide (opens in a new tab)Example flows
What Langfuse and Vast.ai can do together
From Langfuse to Vast.ai
When New Trace in Langfuse
then Get Current User in Vast.ai
When New Trace in Langfuse
then Search Benchmarks in Vast.ai
From Vast.ai to Langfuse
When New Matching Offer in Vast.ai
then Add Comment in Langfuse
When New Matching Offer in Vast.ai
then Add Dataset Item in Langfuse
Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.
Everything your agent can do with Langfuse and Vast.ai
Triggers and actions 2 triggers · 18 actions
Trigger
New TracePolling trigger: fires for newly created traces (dedup by trace id / timestamp).
Action
Add CommentAdd a comment to a trace/observation/session/prompt object.
Action
Add DatasetCreate a new dataset.
Action
Add Dataset ItemCreate an item (input/expected_output/metadata) in a dataset.
Action
Add PromptCreate a new prompt version (text or chat).
Action
Add ScoreCreate a score attached to a trace/observation/session (numeric, categorical, or boolean).
Action
Delete TraceDelete a trace by id.
Action
Get ProjectReads the Langfuse project that the connection's project-scoped API key belongs to.
Action
Get PromptGet a prompt by name (and optional version/label).
Action
Get TraceGet a single trace by id, including nested observations/scores.
Action
List Dataset ItemsList items in a dataset.
Action
List DatasetsList all datasets in the project.
Action
List PromptsList all prompts in the project.
Action
List ScoresList scores with optional filters.
Action
List TracesList traces with optional filters (user, session, tags, timerange).
Trigger
New Matching OfferTriggers when a new GPU machine offer appears on the Vast.ai marketplace that matches your filters (GPU model, price, reliability, location and more).
Action
Get Current UserReturns the profile of the Vast.ai user the connected API key belongs to, including email and account balance.
Action
Search BenchmarksReturns Vast.ai benchmark results matching a search query, such as machines scoring above a threshold.
Action
Search OffersSearches available Vast.ai GPU machine offers, filtered by GPU model, count, price, reliability, location and other hardware specs, and returns the matching offers.
Action
Search TemplatesSearches your own and publicly shared Vast.ai templates matching filter conditions, returning the matching templates.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
Reviews
What our customers say
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Questions
Langfuse and Vast.ai, answered
What can start an automation from Langfuse?
Any of Langfuse's 1 trigger in the catalog, including New Trace. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Vast.ai when something happens in Langfuse?
Any of Vast.ai's 4 actions, including Get Current User, Search Benchmarks, Search Offers and Search Templates. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Vast.ai to Langfuse?
Yes. When something happens in Vast.ai, your agent can act in Langfuse too. This page covers both directions: Vast.ai's triggers and Langfuse's actions are listed here as well.
Do I have to build a connector for Langfuse or Vast.ai?
No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.
Can my AI client use Langfuse and Vast.ai without building an automation?
Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.
What happens when something fails?
Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.
Is there a free plan?
Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.