Claude services · Connectors, Plugins & API Integrations

Custom MCP connectors, Cowork plugins, and API integrations between Claude and your own systems.

We build the connector, plugin, or integration, design the authentication with least-privilege access, tune the tool schemas, add error handling and logging, test it against your data, and deploy it into your environment with documentation.

What you getAll Claude services
Engagement
Scoped to a fixed fee
Fixed scope
Typical timeframe
2–6 weeks per connector
Who it's for
Teams whose highest-value Claude work depends on systems no off-the-shelf connector reaches.
What you walk away with
Claude working against your own systems, with access scoped, logged, and documented.

What you get

What we deliver.

  • Custom MCP servers exposing your systems to Claude as governed tools and resources
  • Cowork plugins packaging your workflows, skills, and connectors for your team
  • API integrations where a direct call is the right answer instead of a connector
  • Authentication and authorisation design: scoped credentials, least privilege, no shared secrets in prompts
  • Tool schemas and descriptions tuned so Claude picks the right tool reliably
  • Error handling, rate-limit behaviour, logging, and a test suite against your data
  • Deployment into your environment plus developer and user documentation

In practice

  1. 01An MCP connector exposing a proprietary policy system so Claude can answer from it
  2. 02A Cowork plugin that packages a firm's intake workflow for every fee earner
  3. 03An API integration writing Claude output back into a system of record

Scope

What you need, and what is not included.

What you'll need

  • API access or documentation for the systems in scope
  • A technical contact for each system
  • An environment we can deploy the connector into

Not included

  • Licences or fees for the third-party systems being connected
  • Remediation of upstream systems that have no usable API
  • Ongoing hosting and monitoring of the connector (that's Managed AI Operations)

The engagement

  1. 01Step 1

    Integration design session: systems, operations, auth model, and boundaries

  2. 02Step 2

    Build and test against your data in a non-production environment

  3. 03Step 3

    Security review and access scoping with your IT or security team

  4. 04Step 4

    Deployment, handover, documentation, and a post-launch support window

  • An Anthropic Select Partner with Claude-certified architects. The people who scope your programme are the people who build it.
  • 50+ specialists across strategy, implementation, automation, data, and custom development, so the Claude work is connected to the systems you run.
  • Every engagement ends with training and documentation, so your team runs it without us.

Questions

Frequently asked questions.

What's the difference between an MCP connector and an API integration?

An MCP connector gives Claude a set of tools it can decide to use in conversation, with your access rules applied. An API integration is a fixed automated flow that you trigger. Agentic work needs the connector. Deterministic work is usually cheaper and safer as an integration. We say which one your use case needs during design.

Can you connect a system with no public API?

Often, through a database view, an export feed, or a middleware layer. It depends on the system, so we assess feasibility during design and tell you before you commit to a build.

Who owns the connector code?

You do. It's deployed in your environment with source and documentation handed over.

Who pays for Claude licences?

Anthropic seats and API consumption are billed to you on your own account, so the environment and the data stay yours. We help you land on the right plan and model mix as part of the engagement.

Next step

Book a discovery call.

Tell us where you are with Claude and what you want from Connectors, Plugins & API Integrations. You leave the call knowing whether it fits and what the fixed-fee proposal will cover.

Email hello@workiflow.com

30 minutes. No commitment.