Nynch

Nynch MCP Server

Website: www.nynch.com · Developer docs: www.nynch.com/developers · Endpoint: https://app.nynch.com/mcp

The official, hosted Model Context Protocol server for Nynch, the AI CRM for consultants and fractionals who win high-value deals based on relationships.

50 tools across 6 categories: CRM read, CRM write, relationship intelligence, firm intelligence, context query, and multi-agent orchestration.

Endpoint

https://app.nynch.com/mcp

Transport: JSON-RPC 2.0 over Streamable HTTP. The server is stateless (no session to manage) and negotiates the protocol version with your client — it speaks 2025-11-25, 2025-06-18, and 2025-03-26.

The older endpoint https://crcrwtjzqzinfzokianr.supabase.co/functions/v1/mcp-server still answers, but it is deprecated. Use https://app.nynch.com/mcp in new configs.

Quick Start

Claude (custom connector, OAuth, no API key)

In Claude, open Settings → Connectors → Add custom connector and enter https://app.nynch.com/mcp. Click Connect, sign in with your Nynch account and approve access. Revoke access any time in Nynch under Settings → Integrations → AI hosts.

Other MCP clients (API key)

1. Get an API Key

Sign up at www.nynch.com, then go to Settings → Integrations → Claude & AI Assistants and create an API key.

Scopes:

• read — Search, browse, and retrieve data
• read-write — Read + create, update, delete records
• admin — Full access including agent orchestration

2. Configure Your Client

Claude Desktop

Add to claude_desktop_config.json:

{

"mcpServers": { "nynch": { "url": "https://app.nynch.com/mcp", "headers": { "Authorization": "Bearer YOUR_API_KEY" } } } }

Cursor

Add to .cursor/mcp.json:

{

"mcpServers": { "nynch": { "url": "https://app.nynch.com/mcp", "headers": { "Authorization": "Bearer YOUR_API_KEY" } } } }

Python (MCP SDK)

from mcp import ClientSession

from mcp.client.streamable_http import streamablehttp_client

async with streamablehttp_client( "https://app.nynch.com/mcp", headers={"Authorization": "Bearer YOUR_API_KEY"} ) as (read, write, _): async with ClientSession(read, write) as session: await session.initialize() result = await session.call_tool("search_contacts", {"query": "Acme Corp"}) print(result)

3. Start Using Tools

Your AI client discovers available tools automatically. Ask it to search contacts, check your pipeline, create tasks, or analyze relationships.

Tool Catalog

CRM Read (11 tools)

CRM Write (12 tools)

Relationship Intelligence (11 tools)

Firm Intelligence (3 tools)

Agent Orchestration (8 tools)

Context Query (5 tools)

Discover and read bounded slices of Nynch and connected-app context, metadata-first. Read-only — never accepts raw SQL.

MCP Resources

Agent Orchestration

Nynch supports multi-agent workflows where AI agents register, share context, and hand off tasks:

• Register with a name, capabilities, and archetype (producer, consumer, coordinator, critic)
• Share state via a key-value context store with namespaces and TTLs
• Route tasks by agent name or capability matching
• Track liveness with heartbeats

Rate Limits

• 1,000 requests per hour per API key

Documentation

• Developer docs: www.nynch.com/developers
• MCP discovery: www.nynch.com/.well-known/mcp
• OpenAPI: www.nynch.com/openapi.json

About Nynch

Nynch is the AI CRM for consultants and fractionals who win high-value deals based on relationships. It remembers relationship context across email, meetings and LinkedIn, and surfaces it when a conversation is worth having.

License

This repository (documentation and configuration) is released under the MIT License. The Nynch MCP Server itself is a hosted service — no local installation required.