Build your AI service and estimate

We work with REST, GraphQL and SOAP APIs, webhooks and MCP: from exchanging data between apps to giving agents tools. We check compatibility, permissions and scope before confirming each connection.

No API in your software?

We can assess building an API when authorised access to code or data is available. File exchange, bridges or interface automation may also work. Some systems do not allow this: we check feasibility before quoting the build.

Choose your main requirement

One build for one system and process. If you need several, the team will prepare a combined estimate. Do not add a standard module for that same connection.

No additional development for nowCustom API integrationOne documented API and one simple flow with authentication, mapping, errors and testing. REST, GraphQL, SOAP or webhooks. Complex multi-system synchronisation excluded.+€2,000–€6,000 estimated buildCustom MCP serverOne system with a stable API and up to five low-to-medium complexity tools, permissions, logs and testing. A new API, enterprise SSO or multi-tenant access are scoped separately.+€3,000–€10,000 estimated buildBuild an API for your softwareAn initial API with up to ten simple operations over authorised code or data. Authentication, documentation and testing. Microservices, migrations and high availability are scoped separately.+€6,000–€20,000 estimated buildConnect software without an APIOne simple, stable process in one application: files, a data bridge or interface automation. Subject to feasibility; excludes a multi-system RPA programme. Interface changes require maintenance.+€4,000–€12,000 estimated build

What can change the estimate

Ranges reviewed in September 2026 for a scoped build, checked against published vendor pricing. These are NextAI estimates, not a statistical market average. More systems, write access, complex authentication, poor data quality or high availability can exceed the range. The final quote defines scope, testing and documentation. Licences, infrastructure, usage and dedicated maintenance are scoped separately.

Your project starts with a clear estimate

Build your service. See your estimate.

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