Skip to content

Braintrust (EU) MCP connector

The Braintrust (EU) connector brings experiments, traces, patterns and monitoring views from Braintrust's EU region into Claude, ChatGPT, Cursor and the Elaichi Agent, so each person asks questions and runs work inside their own Braintrust access.

  • How it connects. Connects over OAuth. The credential goes into a vault nobody reads back.

  • One address. https://api.elaichi.ai/mcp, the same for every user.

  • Their own access. An agent never gets more than the person it acts for.

How to connect

How to connect Braintrust (EU) to Claude, ChatGPT or Cursor

Two steps, about a minute.

1

In Elaichi

Connect Braintrust (EU) once

  1. Open Connections, choose Add connection, and pick Braintrust (EU).

  2. Optionally set Share with to give a team access, then press Connect.

  3. Approve it in Braintrust (EU). Braintrust (EU)'s own window opens. Whoever approves it decides what this connection can reach.

The credential is vaulted. Nobody reads it back, not even the AI.

Add connection

Choose a connector.

braintrust (eu)
Braintrust (EU)
AirOps
Algolia
Botpress
Braintrust
Chatbase
2

In your AI client

Point it at one endpoint

Everyone in the organization uses the same address, and each person only ever reaches what their own account allows.

Braintrust (EU) MCP connector for Claude

  1. 1

    Open Customize, then Connectors.

  2. 2

    Press Add.

  3. 3

    Name it, paste the MCP server URL, then Continue.

    https://api.elaichi.ai/mcp
  4. 4

    Sign in and approve.

On Team and Enterprise, an Owner adds it once. Everyone else turns it on for themselves.

Braintrust (EU) MCP connector for ChatGPT

  1. 1

    Open Plugins, then press the + button.

  2. 2

    Name it and paste the endpoint into Server URL.

    https://api.elaichi.ai/mcp
  3. 3

    Leave Authentication on OAuth, then tick the risk acknowledgement.

  4. 4

    Press Create, then sign in and approve.

Works on the web today. The plugin directory lives at chatgpt.com/plugins.

Braintrust (EU) MCP connector for Cursor

  1. 1

    Open ~/.cursor/mcp.json.

  2. 2

    Add the endpoint under mcpServers.

    https://api.elaichi.ai/mcp
  3. 3

    Reload Cursor, then sign in and approve.

~/.cursor/mcp.json

{
  "mcpServers": {
    "elaichi": {
      "url": "https://api.elaichi.ai/mcp"
    }
  }
}

Set up per machine, so repeat it on each computer you work from.

Connect Braintrust (EU) to any MCP client

  1. 1

    Add the endpoint as a remote MCP server.

    https://api.elaichi.ai/mcp
  2. 2

    Sign in and approve.

{
  "mcpServers": {
    "elaichi": {
      "url": "https://api.elaichi.ai/mcp"
    }
  }
}

The Elaichi Agent already has these tools, with nothing to set up.

Use cases

What teams do with Braintrust (EU) through Elaichi

Every one of these runs inside the access the person already has, and lands in the same audit log.

  • AI engineering

    Summarize an experiment before standup

    Ask for a plain-language summary of last night's experiment in Braintrust (EU), with the scores that moved and the cases that regressed, without opening the dashboard.

  • Data

    Query traces and logs with SQL

    Run a SQL query across traces and logs in the EU region, or ask the agent to infer the schema of a project first so the query is right the first time.

  • Product

    Turn a recurring failure into a pattern

    Search existing patterns, draft a new one for the failure you keep seeing, and refine it as the examples change.

  • Support

    Work through flagged traces as a queue

    Pull the trace work items assigned to you, review each one, and update the work report so the team can see what has been handled.

  • Quality

    Test a facet or preprocessor on one trace

    Create a facet or a preprocessor and try it on a single trace to check it does what you meant before it touches everything.

  • Operations

    Stand up a monitoring view for a release

    Generate a monitor chart for latency or cost, list the monitoring views that already exist, and create a new one for the release going out this week.

Try asking

  • “Summarize the latest experiment in the checkout assistant project.”
  • “Which traces from this week match the hallucination pattern?”
  • “Create a monitoring view for latency on the support bot.”

See all 43 Braintrust (EU) tools below

Compare

Elaichi vs Zapier MCP vs Composio for Braintrust (EU)

All three can connect Braintrust (EU) to an AI assistant, and all three have admin controls. They differ in where access lives and how you pay.

Elaichi compared with Zapier MCP and Composio for Braintrust (EU), by what to check
What to check Elaichi Zapier MCP Composio
Where the AI connects One address for the whole organization. https://api.elaichi.ai/mcp A server per member, created at sign-in. An MCP endpoint per team, or an SDK.
Control over Braintrust (EU) tools Allow or restrict single Braintrust (EU) tools, per role or user. App and action restrictions on the account. Role permissions, down to the action.
Record of calls One audit entry per Braintrust (EU) call. A History tab of tool calls. A log of every tool call.
Single sign-on SAML or OIDC, plus SCIM, on Gold. SAML on Enterprise. SAML and OIDC on Enterprise.
Price $15 per user per month. 2 tasks per successful call. Billed per tool call.

Sources: Zapier MCP docs, security, usage; Composio docs, gateway, enterprise, pricing. Checked September 2026.

Longer take: Zapier MCP alternative and when you don't need an MCP gateway.

AI tools

Braintrust (EU) tools for your AI agents

43 tools are ready to call through Elaichi's MCP endpoint the moment you connect Braintrust (EU), governed by the same roles, restrictions, and audit log as everything else in Elaichi. Braintrust (EU) builds and runs these tools.

See it in Elaichi

What connecting Braintrust (EU) gets you

6 screens from the product, each doing one job for your Braintrust (EU) account.

The agent

Ask about experiments and traces in plain language.

Three starter prompts pull answers from live Braintrust (EU) records, no query to write.

  • experiments
  • traces
  • patterns
  • monitoring views

Ask Elaichi to work across your apps.

Summarize the latest experiment in the checkout assistant project.

Which traces from this week match the hallucination pattern?

Create a monitoring view for latency on the support bot.

Also runs in Claude, ChatGPT or Cursor

MCP clients

One endpoint reaches Braintrust (EU) from any client.

Claude, ChatGPT and Cursor sign in over OAuth, no SDK and no shared API key.

ElaichiMCP clients
Claude ChatGPT Cursor

Copy the endpoint

https://api.elaichi.ai/mcp
Client Connected by Status Last used
Claude
E

Emily Carter

• Connected 4 minutes ago
Cursor
M

Megan Brooks

• Connected 2 hours ago
ChatGPT
R

Ryan Hayes

• Connected Yesterday

Tool catalog

43 tools cover experiments, traces, patterns and monitoring.

Every resource and method in Braintrust (EU) is listed, with no custom code to write.

  • SQL query
  • Infer schema
  • Summarize experiment
  • List recent objects
ElaichiTools
Tool Action Description
SQL query Search Query experiments, datasets, and logs using SQL. Supports SELECT, FROM, WHERE, GROUP BY, ORDER BY, and LIMIT.
Infer schema Action Discover the available fields, data types, and most common values in experiments, datasets, or logs.
Summarize experiment Action Get aggregated performance metrics for an experiment, optionally compared to a baseline.
List recent objects List List recently created projects, experiments, datasets, prompts, or functions you have access to.
Resolve object Action Convert names to IDs or vice versa, and parse Braintrust URLs. For pattern, prompt, and scorer URLs, returns the containing project as object_id and the resource as row_id. App URLs retain their organization scope. Supply org_name to disambiguate name lookups. Ambiguous names…

Toolboxes

Each team gets its own Braintrust (EU) toolbox.

AI engineering, product and support each see the tools their work in Braintrust needs.

  • AI engineering
  • Data
  • Product
  • Support
ElaichiToolboxes
Name Source template Tools Created

AI engineering toolbox

Braintrust (EU) · experiments and traces

Braintrust (EU) starter 18 Mar 4, 2026

Data toolbox

Braintrust (EU) · SQL queries and schemas

— 9 Mar 2, 2026

Product toolbox

Braintrust (EU) · patterns and facets

— 24 Feb 27, 2026

Support toolbox

Braintrust (EU) · trace work items and reports

Braintrust (EU) starter 6 Feb 19, 2026

Platform toolbox

Braintrust (EU) · users, API keys and permalinks

— 31 Jan 30, 2026

Operations toolbox

Braintrust (EU) · monitoring views and charts

— 12 Jan 22, 2026

Shared connections

Teammates work through one connection, never a credential.

One person connects Braintrust (EU) and shares it with teams who never see the token.

  • Evals
  • Support review
  • Product
  • Data
ElaichiConnections
Connection Scope Status Access
BR

Braintrust (EU) (Evals)

Connected by Emily Carter

Personal • Active 1 team · 6 members
BR

Braintrust (EU) (Support review)

Connected by Jake Morgan

Organization • Active 3 teams · 24 members
BR

Braintrust (EU) (Product)

Connected by Megan Brooks

Organization • Active 2 teams · 11 members
BR

Braintrust (EU) (Data)

Connected by Tyler Reed

Personal • Needs re-auth 1 team · 3 members
BR

Braintrust (EU) (Platform)

Connected by Ryan Hayes

Personal • Active Not shared
BR

Braintrust (EU) (Monitoring)

Connected by Ashley Parker

Personal • Active 2 teams · 9 members

Audit log

Every call to Braintrust (EU) is on record.

Who ran which query, created which pattern, and when, in one append-only log.

  • When
  • Who
  • What happened
  • Type
ElaichiAudit log
When Who What happened Type

2 minutes ago

Mar 6, 2026, 3:10 PM

E

Emily Carter

[email protected]

Restriction Created Access

8 minutes ago

Mar 6, 2026, 3:04 PM

J

Jake Morgan

[email protected]

Restriction Updated Access

14 minutes ago

Mar 6, 2026, 2:58 PM

M

Megan Brooks

[email protected]

Role Assigned Access

20 minutes ago

Mar 6, 2026, 2:52 PM

T

Tyler Reed

[email protected]

Braintrust (EU) Users Updated MCP

26 minutes ago

Mar 6, 2026, 2:46 PM

R

Ryan Hayes

[email protected]

Braintrust (EU) Experiments Created MCP

32 minutes ago

Mar 6, 2026, 2:40 PM

A

Ashley Parker

[email protected]

Braintrust (EU) Experiments List Toolbox

Launching soon

From answering questions to doing the work

A person no longer has to ask. A trigger starts the work, inside the same permissions and the same audit log as everything else. Automations and live dashboards are launching soon, on the Black plan.

Automations

A schedule starts the work, a person approves.

Recent Braintrust (EU) traces are fetched, grouped, drafted into a digest, approved and posted back.

Braintrust (EU) digest

Run 418 · started 2 minutes ago · on behalf of Emily Carter

  1. ✓

    Schedule

    Every weekday at 8:00 AM

    0.2s
  2. ✓

    Fetch experiments

    Braintrust (EU)

    1.4s
  3. ✓

    Group by owner

    Transform

    0.1s
  4. ✓

    Draft the digest

    Agent step

    Ran with 4 tools, returned a structured summary

    6.2s
  5. Approve the digest

    Needs approval

    Assigned to Michael Brennan

    Approve
  6. Post the digest

    Braintrust (EU)

    Queued

Collections and dashboards

Braintrust (EU) health, computed without a model.

Four metrics, 14 days of experiments created and a team breakdown, refreshed on schedule.

Braintrust (EU) health

Refreshed 4 minutes ago · every 15 minutes · from the experiments collection

Live

Experiments

1,284 ↓ 12%

Traces

96 ↓ 8%

Needs attention

3 ↑ 2

Updated this week

412 ↑ 9%

Experiments created

Last 14 days

By team

Share of activity

Evals 34%

Support review 27%

Product 21%

Data 18%

FAQ

Frequently asked questions

How do I connect Braintrust (EU) to Claude?

Two steps. In Elaichi, choose Braintrust (EU), and sign in to Braintrust's EU region over OAuth in your browser, approving the request the way you would any normal sign-in. Then in Claude open Customize, then Connectors, then Add, and paste https://api.elaichi.ai/mcp. There is no client ID or secret to generate.

Does Braintrust (EU) work with ChatGPT and Cursor as well as Claude?

Yes. Braintrust in EU is connected once in Elaichi, and the same endpoint, https://api.elaichi.ai/mcp, is added to Claude, ChatGPT, Cursor, any other MCP client and the Elaichi Agent. Nothing is set up per client.

What can an AI agent actually do with my Braintrust (EU) data?

Once Braintrust in EU is connected, an agent can summarize an experiment, run a SQL query over traces and logs, work out the schema of a project, pull up recent objects and link straight to them, search and create patterns, draft a facet or preprocessor and test it on a trace, manage topics automation, and generate monitoring charts and views. Short, concrete asks work better than long sentences, so "summarize yesterday's experiment" beats a paragraph.

Does connecting Braintrust (EU) give the AI access to every project in my organization?

No. Access follows the person who signed in to Braintrust's EU region, so the agent sees the projects, experiments and traces that person already has permission to see, and nothing more. Elaichi can narrow that access further for a team, and it can never widen it beyond what Braintrust itself allows.

Can my team share one Braintrust (EU) connection?

Yes. One person connects Braintrust in EU and shares it with a team in Elaichi, and nobody else handles a token or credential. Each teammate still signs in to Elaichi as themselves, so every query or pattern change in the audit log carries their own name.

Can I stop an agent from changing or updating things in Braintrust (EU)?

Yes. Restrictions on Braintrust in EU work per action, so you can allow summarizing experiments and querying traces while blocking the creation of patterns, changes to monitoring views or switching on topics automation. A restricted action is never advertised to the AI client, so no prompt, however worded, can reach it.

What happens to a Braintrust (EU) connection when someone leaves?

Offboarding that person in Elaichi ends their access to Braintrust in EU at once, across every client they used. A connection they shared with the team keeps working for everyone else. Disconnecting Braintrust (EU) once in Elaichi removes it from Claude, ChatGPT, Cursor and every other client at the same time.

Does the Braintrust (EU) MCP connector work with Gemini, Codex, Claude Code or other MCP clients?

Yes. Braintrust (EU) is reached over the same MCP endpoint every client uses, so anything that speaks MCP can call it — Gemini, Codex, Claude Code, Windsurf, Cline, Zed and OpenCode among them — alongside Claude, ChatGPT, Cursor, and the Elaichi Agent. The tools on offer and the access behind them are identical whichever client asks. Only the setup screen differs.

Is Elaichi an alternative to Zapier MCP for Braintrust (EU)?

Yes. Both let Claude, ChatGPT or Cursor use Braintrust (EU). Zapier MCP fits a team that already automates in Zapier, since each person signs in and acts as themselves in that account. Elaichi fits when IT wants one address for the whole company, per-tool rules by role, and a record of every Braintrust (EU) call.

How is Elaichi different from Composio for Braintrust (EU)?

Composio gives AI agents tools and sign-in handling across 1,000+ apps, for developers building agents or people using an assistant, billed per tool call. Elaichi gives a company's own people governed access to Braintrust (EU): one address, restrictions per role or user, and $15 per user per month. Both have role permissions and a log of every call.

Put Braintrust (EU) in front of your team

14 days on Gold, no credit card. Connect it once and pick what each team can call.

Works with
Claude ChatGPT Cursor and any other MCP client, or the Elaichi Agent.
When the trial ends
Nothing is deleted. Connections, roles and the audit log stay where they are, so subscribing picks up exactly where you left off.