Client SDKs

Official Python package

pip install apier-no

Quickstart:

from apier import Client, ApierError

client = Client()  # zero-auth — Category-A endpoints
data = client.get("/api/v1/tools/altinn-migration")

Stdlib only (urllib + ssl + json), zero runtime dependencies. HTTPS-only with defence-in-depth against open redirects. Python 3.11+.

Official MCP package

The fastest way to connect an AI agent to Apier is the official MCP (Model Context Protocol) server:

npm install @apier-no/mcp

It exposes the production endpoints as MCP tools and works out of the box with any MCP-compatible agent runtime. See the MCP server guide for per-client configuration (Claude Desktop, Cursor, VS Code, OpenAI Agents SDK, Azure AI Foundry), a five-minute quickstart, and the full tool reference.

HTTP client — any language

The raw HTTP interface is fully documented in the OpenAPI 3.1 spec. Use it directly with fetch, or generate a typed client from the spec in under a minute:

# TypeScript — generate a typed client from the spec
npx openapi-typescript https://apier.no/openapi.json -o apier.d.ts

# Python — generate a client from the spec
pip install openapi-python-client
openapi-python-client generate --url https://apier.no/openapi.json

oazapfts and other spec-driven generators work equally well — the spec is the single source of truth.

Quickstart examples

The apier-quickstart repository contains working Node.js and Python examples you can run in a few minutes. Start from the quickstart guide.

Community clients

Built a client library for Apier? Open a pull request against the apier-quickstart repository to have it listed here.