Custom MCP server and business-system integrations by Michal KowalkowskiCustom MCP server and business-system integrations by Michal Kowalkowski
Custom MCP server and business-system integrationsMichal Kowalkowski
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Please message me on Contra before booking or starting a project. These packages cover example scopes. We will confirm your requirements, scope, timeline and price first, and I can send a tailored proposal. Model/API, hosting and paid-tool costs are separate.
Make your business systems usable by AI assistants through a custom MCP integration layer. I design and build the server and connectors around the tasks your agents need to perform. The agreed scope can cover several APIs or data sources, read and write tools, typed inputs and outputs, authentication, access rules, input validation and useful error handling. I test the tools with your chosen MCP client and document how to operate them. You receive the source code, tool contracts, agreed adapters, representative tests, deployment configuration and handover documentation. We define which actions need approval, how credentials are managed and what is logged before implementation. This service builds the integration layer. An agent that plans work, maintains memory and coordinates a company process is a separate offering. Message me with your systems, APIs, target MCP clients and the actions you want to enable.
EXAMPLE SCOPES AND PRICES (USD) One-system MCP server — $1,250 A deployed MCP server for one system and up to three tools, with authentication and one-client testing. Indicative delivery: 5 calendar days.
Two-system integration — $2,500 Up to two systems and six tools, scoped read/write access, validation, error handling and logs. Indicative delivery: 10 calendar days.
Advanced MCP layer — $4,000 Up to three systems and ten tools, user-aware access, integration tests, deployment and monitoring handover. Indicative delivery: 15 calendar days.
HOW I WORK Design tools and access rules Define the selected systems, tool contracts, authentication, permission boundaries, target client and error behaviour.
Build the MCP server and adapters Implement the agreed tools and connectors with input validation, access controls and operational logs where scoped.
Test compatibility and hand over Verify representative calls with the agreed client, provide deployment configuration and document the server and tool contracts.
WHAT I NEED TO QUOTE Describe your goal and the exact scope we discussed on Contra. Include the expected result and acceptance criteria. Please provide: Systems and API documentation, desired tools and example calls, target MCP clients, identity and permission model, read/write boundaries and deployment requirements.
OUTSIDE SCOPE The full company agent, memory or user interface; unlimited adapters; rewriting unavailable upstream APIs; security certification. Complex adapters require separate estimation.
Prices are illustrative for the listed scope, based on actual hands-on time with AI assistance, manual review and testing. We agree on the final scope, price, access and delivery schedule in a custom proposal. Delivery estimates start after complete requirements. One revision round within scope is included.
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Contact for pricing
Duration15 days
Tags
TypeScript
Software Engineer
Service provided by
Michal Kowalkowski Warsaw, Poland
Custom MCP server and business-system integrationsMichal Kowalkowski
Contact for pricing
Duration15 days
Tags
TypeScript
Software Engineer
Cover image for Custom MCP server and business-system integrations
Please message me on Contra before booking or starting a project. These packages cover example scopes. We will confirm your requirements, scope, timeline and price first, and I can send a tailored proposal. Model/API, hosting and paid-tool costs are separate.
Make your business systems usable by AI assistants through a custom MCP integration layer. I design and build the server and connectors around the tasks your agents need to perform. The agreed scope can cover several APIs or data sources, read and write tools, typed inputs and outputs, authentication, access rules, input validation and useful error handling. I test the tools with your chosen MCP client and document how to operate them. You receive the source code, tool contracts, agreed adapters, representative tests, deployment configuration and handover documentation. We define which actions need approval, how credentials are managed and what is logged before implementation. This service builds the integration layer. An agent that plans work, maintains memory and coordinates a company process is a separate offering. Message me with your systems, APIs, target MCP clients and the actions you want to enable.
EXAMPLE SCOPES AND PRICES (USD) One-system MCP server — $1,250 A deployed MCP server for one system and up to three tools, with authentication and one-client testing. Indicative delivery: 5 calendar days.
Two-system integration — $2,500 Up to two systems and six tools, scoped read/write access, validation, error handling and logs. Indicative delivery: 10 calendar days.
Advanced MCP layer — $4,000 Up to three systems and ten tools, user-aware access, integration tests, deployment and monitoring handover. Indicative delivery: 15 calendar days.
HOW I WORK Design tools and access rules Define the selected systems, tool contracts, authentication, permission boundaries, target client and error behaviour.
Build the MCP server and adapters Implement the agreed tools and connectors with input validation, access controls and operational logs where scoped.
Test compatibility and hand over Verify representative calls with the agreed client, provide deployment configuration and document the server and tool contracts.
WHAT I NEED TO QUOTE Describe your goal and the exact scope we discussed on Contra. Include the expected result and acceptance criteria. Please provide: Systems and API documentation, desired tools and example calls, target MCP clients, identity and permission model, read/write boundaries and deployment requirements.
OUTSIDE SCOPE The full company agent, memory or user interface; unlimited adapters; rewriting unavailable upstream APIs; security certification. Complex adapters require separate estimation.
Prices are illustrative for the listed scope, based on actual hands-on time with AI assistance, manual review and testing. We agree on the final scope, price, access and delivery schedule in a custom proposal. Delivery estimates start after complete requirements. One revision round within scope is included.
FAQs

Contact for pricing