promptlayer.com

PromptLayer is a prompt management and AI observability platform for AI engineering teams. It provides prompt versioning, request tracing, evaluations, datasets/tables, workflows, and related tooling for LLM-powered applications.

5 integrations · MCP · REST · CLI

PromptLayer exposes a REST API at https://api.promptlayer.com, two MCP servers (public docs MCP and authenticated workspace MCP), and official Python/JavaScript SDK packages plus an npm MCP server package; authenticated developer access uses a workspace PromptLayer API key.

discovered 2mo ago

MCP servers2

PromptLayer Docs MCPdiscoveredstreamable-http
PromptLayer MCPdiscoveredstreamable-http

REST · OpenAPI1

PromptLayer REST APIdiscoveredrest

CLI2

PromptLayer MCP Server CLIdiscoverednpx @promptlayer/mcp-server
PromptLayer JavaScript SDK CLI entrypoint examplesdiscoverednode

Credentials

PromptLayer API keyapi_keyGet key ↗

Sign in to the PromptLayer dashboard, open the API keys page mentioned in the REST API authentication docs, and generate a workspace API key. The quickstart notes you need a PromptLayer API key from your workspace; set it as PROMPTLAYER_API_KEY for SDKs and local MCP, use it in X-API-Key for the REST API, or as Authorization: Bearer pl_... for the hosted MCP server.

conventions · 1/8 published

integrations.json✗/.well-known/integrations.json
llms.txt✓https://promptlayer.com/llms.txt
API catalog✗/.well-known/api-catalog
OpenAPI document✗/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json
MCP server card✗/.well-known/mcp/server-card.json
OAuth protected resource✗/.well-known/oauth-protected-resource
Agent card✗/.well-known/agent-card.json
Agent skills✗/.well-known/agent-skills/index.json

Publish these signals → /publishing