Bring Invoicing
to OpenAI Agents SDK
Learn how to connect Invoicing Plus to OpenAI Agents SDK and start using 12 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Invoicing Plus MCP Server?
Connect your Invoicing Plus account to any AI agent and manage billing through natural conversation.
What you can do
- Invoice Management — List, create, inspect, and send invoices with line items and tax calculations
- Client Database — Browse clients, create new client records, and inspect profiles
- Payment Tracking — Monitor payment statuses and track overdue invoices
- Product Catalog — Browse products and services with pricing for quick invoice creation
- Revenue Monitoring — Track total revenue, outstanding amounts, and payment trends
How it works
- Subscribe to this server
- Enter your Invoicing Plus API Key
- Start managing invoices from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Freelancers — create and send invoices without opening the billing app
- Small Businesses — manage clients, track payments, and monitor cash flow
- Accountants — review invoices and payment statuses through AI
Built-in capabilities (12)
plus with the provided name and email. Create a new customer in Invoicing.plus
plus. Get a specific company from Invoicing.plus
plus API. Get a specific customer from Invoicing.plus
plus API. Get a specific estimate from Invoicing.plus
plus API. Get a specific invoice from Invoicing.plus
plus API. Get a specific item from Invoicing.plus
plus. List companies from Invoicing.plus
plus API. List customers from Invoicing.plus
plus API. List estimates from Invoicing.plus
plus API. List invoices from Invoicing.plus
plus API. List items/products from Invoicing.plus
plus API. List payments from Invoicing.plus
Why OpenAI Agents SDK?
The OpenAI Agents SDK auto-discovers all 12 tools from Invoicing Plus through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries Invoicing Plus, another analyzes results, and a third generates reports, all orchestrated through Vinkius.
- —
Native MCP integration via
MCPServerSse, pass the URL and the SDK auto-discovers all tools with full type safety - —
Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure
- —
Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate
- —
First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output
Invoicing Plus in OpenAI Agents SDK
Invoicing Plus and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Invoicing Plus to OpenAI Agents SDK through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Invoicing Plus in OpenAI Agents SDK
The Invoicing Plus MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 12 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in OpenAI Agents SDK only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
Invoicing Plus for OpenAI Agents SDK
Every tool call from OpenAI Agents SDK to the Invoicing Plus MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can I create and send invoices through the AI agent?
Yes. Use the invoice creation tools with client ID, line items, and tax settings. Browse products for quick item selection and send invoices directly to clients.
Can I track overdue invoices and payment status?
Yes. List invoices with status filters to identify overdue, paid, and pending invoices. Track payment amounts and dates for cash flow monitoring.
Can I manage my product catalog?
Yes. Browse all products and services with pricing. Use products directly when creating invoices for quick line item selection.
How does the OpenAI Agents SDK connect to MCP?
Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.
Can I use multiple MCP servers in one agent?
Yes. Pass a list of MCPServerSse instances to the agent constructor. The agent can use tools from all connected servers within a single run.
Does the SDK support streaming responses?
Yes. The SDK supports SSE and Streamable HTTP transports, both of which work natively with Vinkius.
MCPServerStreamableHttp not found
Ensure you have the latest version: pip install --upgrade openai-agents
Agent not calling tools
Make sure your prompt explicitly references the task the tools can help with.
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