
Perfex CRM
com.themesicPublished by themesic.comv3.1.0Updated Oct 24, 2026
Read and write a self-hosted Perfex CRM from an AI agent: 148 permission-filtered tools.
Overview
MCP server for a self-hosted Perfex CRM that gives an assistant 148 permission-filtered tools to read and write CRM records.
- What you can do
- Read and write core CRM records such as customers, contacts, leads, invoices, estimates, proposals, contracts, payments and credit notes
- Manage projects, tasks, milestones, timesheets, subscriptions, items, expenses, staff and calendar entries
- Look up reference data such as countries, taxes, currencies, statuses and custom fields
- Work with knowledge base articles and groups, and with notes attached to entity types
- List endpoints support pagination, field selection, sorting and date-range filters
- When to use it
- Useful when your team runs a self-hosted Perfex CRM and wants an AI assistant to look up or update customers, leads, invoices, projects and tasks directly, for example in Claude, ChatGPT, Cursor or an automation agent.
- Requirements
- A self-hosted Perfex CRM with the commercial REST API module installed, licensed and its MCP server enabled. The endpoint is your own host at /api/mcp (or the vendor's hosted MCP URL). An API token created in Perfex under Setup > API > API Management, sent in the authtoken header, with permissions ticked for the resources you want exposed.
Installation
In SourceWeft
- Open Perfex CRM in the dashboard and add it to a workspace.
- Connect authtoken credentials. They are stored privately and never shown on public pages.
- Enable the server for the chats that should use its tools.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Other MCP clients
Follow the launch instructions in the repository.
README
Perfex CRM REST API — Examples, Postman Collection & Code Snippets
🌐 English · 简体中文 · Español · Português (BR) · Italiano · Français · Deutsch · Türkçe · Tiếng Việt · ไทย · العربية
Ready-to-use Postman collection, code snippets (cURL, PHP, Python, JavaScript) and a resource catalogue for the REST API module for Perfex CRM — the fastest way to connect Perfex CRM with AI agents and third-party applications.
[Postman] [OpenAPI 3.0] [License: MIT] [Perfex CRM]
The Perfex CRM REST API lets you read and write customers, leads, invoices, estimates, projects, tasks and more over a clean HTTP/JSON interface — perfect for CRM integration, automation and custom apps. v3.0 adds an MCP server for AI agents, production-grade webhooks, ready-made Zapier / Make / n8n polling, batch operations and smarter list endpoints. This repository is the practical companion to the REST API for Perfex CRM module by Themesic Interactive: copy-paste examples, an importable Postman collection, and a full endpoint catalogue.
-
🧩 Get the module: https://themesic.com/product/rest-api-module-for-perfex-crm-connect-your-perfex-crm-with-third-party-applications/
-
📖 API guide / live docs: https://perfexcrm.themesic.com/apiguide/
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🧾 OpenAPI 3.0 spec:
GET https://yourdomain.com/api/openapi(reference copy)
🚀 What's new in v3.0
Everything is opt-in and backwards-compatible: requests without the new parameters return the exact same response as before.
Contents
Each snippet language has examples for customers, invoices, leads plus the v3 features webhooks, mcp, batch, automation, knowledge_base and notes, and a list_features file showing pagination, field selection and sorting.
Quick start
Every request to the Perfex CRM REST API is authenticated with the Authtoken header. Create a token
in your Perfex admin under API → API Management (after activating the
REST API module),
then call the API at https://yourdomain.com/api/...:
That returns the list of customers as JSON. See docs/authentication.md for
header vs. query-parameter auth, and snippets/ for the same call in PHP, Python and JavaScript.
Use the Postman collection
- Open Postman → Import → drop in
postman/perfex-rest-api.postman_collection.json. - Import the environment
postman/perfex-rest-api.postman_environment.json. - Set
base_urltohttps://yourdomain.com/apiandauthtokento your token. - Pick any request and hit Send.
Connect an AI agent (MCP)
Point any MCP client (Claude Desktop, Cursor, ChatGPT, n8n AI Agent) at POST https://yourdomain.com/api/mcp
and send your authtoken header. The server advertises permission-filtered tools for your CRM. See
docs/mcp.md and snippets/curl/mcp.sh.
Use with Claude, ChatGPT and other AI assistants
Connect any assistant with one URL, https://perfex-mcp.themesic.com/mcp. Step-by-step setup for Claude, ChatGPT,
Cursor and VS Code: docs/connect-ai-assistants.md.
A Claude plugin (connector + skills) for claude.ai, Cowork and Claude Code lives in
claude-plugin/. It requires the REST API module with a valid license and the MCP
server enabled. See claude-plugin/README.md for setup, permissions and the
privacy policy.
Endpoint catalogue
All CRUD endpoints follow a RESTful convention: GET list, GET /:id single, POST create,
PUT /:id update, DELETE /:id delete — under the base path https://yourdomain.com/api.
Core CRM resources
v3 platform & extra resources
The exact request fields per resource are documented in the official API guide. The snippets here cover the most common flows.
Smarter list endpoints (v3)
Every list endpoint accepts optional query parameters. Add them and you get a { data, meta } envelope;
omit them and you get the exact legacy array.
per_pageis the parameter that sizes a page (1-100, default 25).limitis accepted as an alias only whenpageis sent too, so a bare?limit=5does not paginate - use?page=1&per_page=5.
See docs/pagination-filtering.md and
snippets/curl/list_features.sh.
Upgrading from 2.x
There are no breaking changes. Every v3 list feature is opt-in:
- Send none of the parameters above and you get the same plain array 2.x returned. The
{ data, meta }envelope appears only when you sendpageorper_page. - No endpoint was renamed. Customers have always been at
/api/customers. - Unknown fields on
PUTare ignored instead of returning an error. POSTrequests accept an optionalIdempotency-Keyheader; identical retries replay the stored response rather than creating duplicates.
Two things worth knowing when adopting v3:
- Custom tables moved behind an allowlist in 3.0.2 - see
docs/custom-tables.md. - New permission rows (Webhooks, Notes, Knowledge Base) must be ticked on existing tokens before
those endpoints answer, and before their MCP tools appear in
tools/list.
Popular integrations & use cases
The Perfex CRM REST API is commonly used to connect Perfex CRM with AI agents and third-party applications:
- AI assistants (MCP) — let Claude, ChatGPT or Cursor read and update your CRM through
/api/mcp. - Zapier / Make / n8n — no-code automation via ready-made polling triggers (
/api/zapier/*). - Webhooks — push Perfex events (new invoice, new lead, 124 events) to Slack, Discord or your own backend, signed with HMAC.
- Google Sheets / Power Automate — sync customers, invoices or payments to spreadsheets and dashboards.
- Custom apps & portals — build a mobile app or customer portal on top of your Perfex data.
- Accounting & e-commerce — sync invoices and items with external billing or shop platforms.
All of these are powered by the REST API for Perfex CRM module.
Authentication (summary)
Tokens are created and scoped (per-resource permissions) in API → API Management. Full details in
docs/authentication.md.
FAQ
Does Perfex CRM have a REST API? Yes. The REST API for Perfex CRM module adds a full RESTful HTTP/JSON API for customers, leads, invoices, estimates, projects, tasks and more, plus a v3 MCP server, webhooks, batch and automation endpoints.
Can I use Perfex CRM with AI agents / ChatGPT / Claude?
Yes — v3 ships an MCP server at POST /api/mcp that exposes permission-filtered CRM tools to any
Model Context Protocol client. See docs/mcp.md.
How do I authenticate with the Perfex CRM API?
Send your token in the Authtoken HTTP header (or as an ?authtoken= query parameter). See
docs/authentication.md.
What is the base URL of the Perfex CRM API?
https://yourdomain.com/api — for example https://yourdomain.com/api/customers.
Can I connect Perfex CRM to Zapier, Make or n8n?
Yes — v3 has ready-made polling triggers under /api/zapier/*, plus webhooks. See
Popular integrations and docs/automation.md.
Is there a Postman collection for Perfex CRM?
Yes — import postman/perfex-rest-api.postman_collection.json
and the bundled environment, set your base_url and authtoken, and start sending requests.
How do I create an invoice via the Perfex CRM API?
POST https://yourdomain.com/api/invoices with the invoice fields and an items[] array — v3 auto-calculates
subtotal/total. See snippets/curl/invoices.sh.
About / Support
[Perfex CRM REST API icon]This repository is an examples companion to the commercial module:
REST API for Perfex CRM — connect your Perfex CRM with third-party applications by Themesic Interactive.
- 🛒 Buy / learn more: https://themesic.com/product/rest-api-module-for-perfex-crm-connect-your-perfex-crm-with-third-party-applications/
- 📖 Documentation: https://perfexcrm.themesic.com/apiguide/
- 💬 Support: https://themesic.com/support
Contributions of additional examples are welcome — see CONTRIBUTING.md.
License
Example code in this repository is released under the MIT License. "Perfex" is a trademark of its respective owner; the REST API module is a commercial product by Themesic Interactive.
Source: README.md at commit 0f4c4f7
Tools
0Version history
1- v3.1.0LatestSep 16, 2026
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