# PromptLayer MCP

Vendor: PromptLayer  
Category: other  
Auth: API_KEY  
Composio slug: `promptlayer`

PromptLayer is a prompt management and observability platform for versioning, evaluating, running, and analyzing LLM applications.

## Tools

- **Get Prompt Template** — Retrieve a prompt template version, release label, messages, model metadata, snippets, and optionally provider-ready kwargs without executing it.
- **Get Registered Tool** — Retrieve a PromptLayer registered tool definition by ID or name at a selected version or release label without test execution.
- **Get Request Log** — Retrieve one PromptLayer request log with its recorded input, output, timing, usage, metadata, tags, and scores.
- **Get Skill Collection** — Retrieve a PromptLayer skill collection and its files as JSON at a selected version or release label.
- **Get Table** — Retrieve one PromptLayer Table's metadata and per-sheet row counts by UUID.
- **Get Workflow** — Retrieve a PromptLayer workflow definition by ID or name at a specific version or release label without running it.
- **List Folder Entities** — Browse or search PromptLayer folders and registry entities in the API-key workspace, optionally recursively and with metadata.
- **List Prompt Templates** — Search and page through PromptLayer prompt templates and snippets without executing a model.
- **List Registered Tools** — List and filter tools defined in PromptLayer's tool registry without executing them.
- **List Skill Collections** — List and filter PromptLayer skill collections available in the API-key workspace.
- **List Table Columns** — List one page of user and optionally system columns for a PromptLayer Table sheet.
- **List Table Rows** — Read one page of rows and cells from a PromptLayer Table sheet, with optional schema and execution aggregates.
- **List Tables** — Search and page through PromptLayer Tables by folder, name, or referenced prompt.
- **List Table Sheets** — List one page of sheets in a PromptLayer Table, optionally filtering by referenced prompt.
- **List Workflows** — Search and page through PromptLayer workflows without running them.
- **Search Request Logs** — Search PromptLayer request logs by text or structured filters and return one rate-limited page sorted by operational fields.

## Setup

1. Create or open a Switchy Project.
2. Open Integrations and connect PromptLayer.
3. Authorise through api_key.
4. Teammates can now @-mention PromptLayer tools in chat.

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Last verified: 2026-09-03T02:00:04.194Z  
Canonical URL: https://switchy.build/directory/mcps/promptlayer