Phos Labs MCP Server

Hosted, remote Model Context Protocol server. POST https://mcp.phoslabs.io/mcp is Streamable HTTP behind OAuth 2.1: the 401 challenge names RFC 9728 protected-resource metadata, whose authorization server (https://mcp.phoslabs.io/) publishes RFC 8414 metadata with authorization_code + refresh_token, PKCE S256, dynamic client registration and one scope, claudeai. The root path answers an anonymous initialize (protocolVersion 2025-03-26, serverInfo "Phos Labs Commerce Intelligence") and refuses every other method; /sse and /messages accept a REST API key as the Bearer token. Registered in the official MCP registry as io.phoslabs/commerce-intelligence (4.0.0) and io.phoslabs/behavioral-science (1.0.0). tools/list is gated, so the tool inventory is recorded from the agent card and REST listing without input schemas. The A2A agent card served on this host at /.well-known/agent-card.json (and agent.json) describes this server and grades flavored (no protocolVersion).

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API entry from apis.yml

apis.yml Raw ↑
aid: phoslabs-io:phos-labs-mcp-server
name: Phos Labs MCP Server
description: 'Hosted, remote Model Context Protocol server. POST https://mcp.phoslabs.io/mcp is Streamable
  HTTP behind OAuth 2.1: the 401 challenge names RFC 9728 protected-resource metadata, whose authorization
  server (https://mcp.phoslabs.io/) publishes RFC 8414 metadata with authorization_code + refresh_token,
  PKCE S256, dynamic client registration and one scope, claudeai. The root path answers an anonymous initialize
  (protocolVersion 2025-03-26, serverInfo "Phos Labs Commerce Intelligence") and refuses every other method;
  /sse and /messages accept a REST API key as the Bearer token. Registered in the official MCP registry
  as io.phoslabs/commerce-intelligence (4.0.0) and io.phoslabs/behavioral-science (1.0.0). tools/list
  is gated, so the tool inventory is recorded from the agent card and REST listing without input schemas.
  The A2A agent card served on this host at /.well-known/agent-card.json (and agent.json) describes this
  server and grades flavored (no protocolVersion).'
humanURL: https://github.com/phoslabs/behavioral-science-api#mcp-integration
baseURL: https://mcp.phoslabs.io/mcp
tags:
- MCP
- AI Agents
- A2A
properties:
- type: MCPServer
  url: mcp/phoslabs-io-mcp.yml
- type: ToolCrosswalk
  url: mcp/phoslabs-io-tool-crosswalk.yml
- type: AgentCard
  url: a2a/phoslabs-io-a2a.yml
- type: AgentCard
  name: Agent card (provider-hosted)
  url: https://mcp.phoslabs.io/.well-known/agent-card.json
- type: OAuthScopes
  url: scopes/phoslabs-io-scopes.yml
- type: Authentication
  url: authentication/phoslabs-io-authentication.yml
- type: Documentation
  url: https://github.com/phoslabs/behavioral-science-api#mcp-integration
- type: Pricing
  url: https://phoslabs.io/credits