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Integration

Vellum

LLM app development: prompts, workflows, deployments and evaluations. Your client pastes their Vellum key once, and your agent or your code works with their access.

AI

About Vellum

Vellum is a platform for building LLM apps.

With your client's Vellum connected, your agent can work with prompts, workflows, deployments and evaluations.

Vellum

Vellum · AI

API key

LLM app development: prompts, workflows, deployments and evaluations

The client pastes their API key from Vellum's settings. We store it encrypted.

Tested against Vellum's live API.

Building with Vellum? The docs have setup steps and code for every tool.

Open the Vellum docs

Tools

Your agent calls any endpoint of Vellum's API with the request tool, with the client's access attached.

Base URL for request

https://api.vellum.ai/v1

  • request

    HTTPS ANY /v1/clients/{clientId}/vellum/{path}

    Any endpoint of Vellum's own API, with the client's access attached.

    servicestringrequired
    This service: vellum
    methodstringrequired
    GET, POST, PUT, PATCH or DELETE
    pathstringrequired
    The path under https://api.vellum.ai/v1
    queryobjectoptional
    Query parameters
    bodyobjectoptional
    A JSON body

Over MCP every tool also takes client_id, from list_clients. Over HTTPS send it as clientId to https://api.operate.as/v1.

What the client approves

  • Use the Vellum key you paste, with only the access you gave that key

Get started

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