Install the Acuris agent context once. Claude Code, Cursor, GitHub Copilot, Codex, OpenCode, Gemini CLI, Kiro, Goose — they all get the actual SDK shape, the right headers, the typed error hierarchy, and a library of recipes. No more hallucinated endpoints. No more Authorization: Bearer on the wrong header. No more invisible dropdowns in Tailwind v4.
The Agent Skill below teaches your AI tool to write code against the Acuris API. The MCP server goes further: it gives any MCP-capable client — Claude, Cursor, ChatGPT, Gemini CLI — live, self-describing tools it can call directly: validate an address, geocode, expand a UK postcode, pull US/Canada census enrichment. Billing runs under your own API key, exactly like the API; failed lookups are refunded automatically. An agent without a key can even self-provision a free trial key via the request_trial_key tool.
Hosted endpoint — zero install.
Claude Desktop, Cursor, and 30+ others.
Tool reference, auth and billing: api.acuris-geo.com/docs/mcp · source & stdio package: github.com/Acuris-GmbH/acuris-mcp
The package bundles two model-invoked skills. Each auto-activates only when your task matches its area, so installing both costs almost no context.
acuris-address
Wires @acuris-geo/av-sdk + @acuris-geo/centra-checkout into your project — validation, forward and reverse geocoding, autocomplete, batch cleanup, Next.js proxy routes, plain Node servers.
acuris-eudi
Wires the Acuris EUDI Wallet Verifier (OID4VP / SD-JWT VC at eudi.acuris-geo.com) into a bank KYC or onboarding flow — session initiation, polling, trust validation against EU 27 member-state TSLs.
Pick the install path that matches your AI tool. The skill content is identical across all of them.
Self-hosted marketplace today. Official Anthropic marketplace listing pending review.
Native Agent Skills support. Or drop the MDC rules into .cursor/rules/.
Plus Gemini CLI, Kiro, Goose, and ~30 other tools listed at agentskills.io.
Point your client at the canonical SKILL.md and the references library.
Without the skill, AI assistants hallucinate endpoints, hand-roll fetch calls with the wrong auth header, and guess at npm versions that don't exist. With the skill installed, the assistant knows:
Four endpoints (validate, geocode, reverse, suggest), X-Acuris-Key header, ISO-3 lowercase country codes, typed error hierarchy with automatic retries on 5xx / 429 / network / timeout.
Pinned to @acuris-geo/av-sdk@^0.1.2 and @acuris-geo/centra-checkout@^0.1.2. No more ^1.0.0 guesses that fail npm install.
API key stays server-side. Browser calls /api/acuris/* on your backend, which uses the SDK to talk to Acuris. Drop-in routes for Next.js App Router, Pages Router, Express, Fastify, Cloudflare Workers.
minQueryLength, not minLength. renderSuggestion for custom rows. suggestionsClassName for the dropdown. Visible defaults in 0.1.2 so the dropdown renders in Tailwind v4 environments out of the box.
Autocomplete works for 7 countries (US, UK, DE, NL, FI, SE, JP) — the skill omits unsupported countries from typeahead pickers automatically. Validation and geocoding work for 200+ ISO-3 codes; UK validation runs on Royal Mail PAF with UDPRN/UPRN.
Replace your libAddressDoctor (Informatica), Loqate, Experian, or Smarty calls with one Acuris call. Status-code mappings, field translations, and the parts that don't migrate (CASS certifications, vendor-specific stable IDs) all called out.
Anything in this list activates the right recipe automatically. The skill's frontmatter triggers on these keywords.
validateAddress into your server route with the typed error hierarchy handled distinctly.
/api/acuris/reverse, an escalating-radius pattern (50m → 200m → 1000m), and the result UI.
POST /v1/eudi/sessions, the QR display, the polling loop, and the verification_status + accuracy_type → KYC decision routing.
No signup form. No email round-trip. A free 100-validation + 100-geocode key valid for 7 days, returned directly in the response body. The skill teaches the assistant to do this for you automatically — but you can also run it yourself:
For higher caps, the 28-day trial (1000 + 1000 credits) and paid plans remain. The dev key authenticates the same endpoints as a paid one — it's the same auth path, just rate-limited.
Self-hosted marketplace: available now. The Claude Code install command above works today against Acuris-GmbH/acuris-agent-context.
Official Anthropic marketplace: submitted 2026-05-17, awaiting review. Once approved, the install command shortens to /plugin install acuris@claude-plugins-official.
Cursor & the `npx skills add` ecosystem: available now. The skill is in the canonical Anthropic Agent Skills format, which Cursor and 30+ other tools consume natively via agentskills.io.
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