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mnjbold

BK Jr. MCP Server

by mnjbold
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Python
Remote

BK Jr. MCP Server

A hosted MCP (Model Context Protocol) server for the BK Jr. recruiter agent. Wires together Retell AI (voice), Quo/OpenPhone (SMS), Google Sheets/Calendar/Gmail/Drive (via Composio).

Why this exists

The user-facing agent (BK Jr.) runs in Claude Desktop. Claude Desktop talks to the MCP server over HTTPS. This server:

  • Adds bearer-token auth (the raw FastMCP server has none)

  • Strips the trailing-slash redirect that breaks clients behind TLS-terminating proxies (Cloudflare, Fly, Render)

  • Exposes a /health endpoint for the platform's health check

  • Runs in stateless mode (no long-lived sessions) so it survives restarts cleanly

Related MCP server: Recruit CRM MCP

Endpoints

Path

Auth

Description

GET /health

none

Returns server status. Use for Render/Render health checks.

POST /mcp

Bearer

JSON-RPC: tools/list, tools/call, initialize, etc.

POST /mcp/

Bearer

Same as /mcp (the trailing-slash alias).

Auth

Every MCP request must include:

Authorization: Bearer <MCP_AUTH_TOKEN>

The server reads MCP_AUTH_TOKEN from env, falling back to SMS_AGENT_API_KEY for backward compat. If neither is set, the server refuses ALL MCP requests with 401.

Local development

docker build -t bk-jr-mcp:local .
docker run --rm -p 8090:8080 \
  -e MCP_AUTH_TOKEN=test-token \
  -e BACKEND_URL=http://host.docker.internal:8080 \
  -e OPENPHONE_API_KEY=... \
  -e RETELL_API_KEY=... \
  -e COMPOSIO_API_KEY=... \
  -e COMPOSIO_USER_ID=... \
  -e COMPOSIO_CONNECTED_ACCOUNT_ID=... \
  -e GOOGLE_SHEETS_ID=... \
  bk-jr-mcp:local

Then test:

# No auth -> 401
curl -X POST http://localhost:8090/mcp

# With auth -> 200
curl -X POST http://localhost:8090/mcp \
  -H "Authorization: Bearer test-token" \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Deploy to Render

This repo has a render.yaml blueprint. The simplest path:

  1. Push to GitHub

  2. Render dashboard → New → Blueprint → point at this repo

  3. Render reads render.yaml and creates the service

  4. Set MCP_AUTH_TOKEN as a secret in Render

  5. Set the Quo/Retell/Composio API keys as secrets too

  6. The service deploys and gets a public URL like https://bk-jr-recruiter-mcp.onrender.com/mcp

Config

Required env vars (set as Render secrets):

  • MCP_AUTH_TOKEN — bearer token clients send

  • BACKEND_URL — the FastAPI backend (defaults to https://bk-jr-api.aixlabs.fun)

  • OPENPHONE_API_KEY — Quo/OpenPhone

  • RETELL_API_KEY — Retell AI

  • COMPOSIO_API_KEY (and COMPOSIO_USER_ID, COMPOSIO_CONNECTED_ACCOUNT_ID, GOOGLE_SHEETS_ID)

  • SMS_AGENT_API_KEY — bearer token for the backend's /api/* routes (fallback for MCP_AUTH_TOKEN)

24 tools exposed

Domain

Tools

Candidates

list_candidates, get_candidate_by_phone, update_candidate

Jobs

list_jobs, get_job

SMS (Quo)

send_sms, list_phone_numbers, list_conversations

Voice (Retell)

trigger_screening_call, list_pending_screenings, list_recent_screenings

Retell agents

retell_list_agents, retell_get_agent, retell_create_agent, retell_place_call

Bulk

bulk_outreach, bulk_outreach_for_job

Google

gmail_send, gcal_list_events, gcal_create_event, gdrive_create_folder, gdrive_share

Control

pause_candidate, notify_bk

This server cannot be installed

F
license - not found
-
quality - not tested
B
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity

Resources

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