Alpay Celik

Alpay Celik is an AI full‑stack engineer based in North Rhine‑Westphalia, Germany, offering end‑to‑end software development services. The site showcases capabilities in building AI‑driven applications, covering data modeling, API design, front‑end implementation, and deployment. It highlights projects such as MCP migration checks, Abfall‑MCP, and Claude skill sets, and provides links to GitHub repositories, a status page, and an llms.txt index. The portfolio emphasizes agentic development, modern tooling, and a focus on verifiable, evidence‑backed software solutions.

Alpay Celik is profiled on the APIs.io network. Tagged areas include Artificial Intelligence, Full-Stack, Engineer, Germany, and Software Development.

Alpay Celik’s developer surface includes changelog and 6 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

6.1/100 minimal Agent 3/100 human only Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

0 APIs

Artificial Intelligence Full-Stack Engineer Germany Software Development Portfolio

Kin Score

Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0

Composite quality — 6.1/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 2.3 / 11

Contract Governance 0.0 / 10

Discoverability 4.1 / 9

Regulatory Posture 0.8 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

12 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 0.0 — up to +20.0 composite points
Access Clarity scores 0.0 — up to +20.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/alpaycelik-dev/apis.yml: open an issue on github.com/api-evangelist/alpaycelik-dev to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Alpaycelik Dev Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: alpaycelik-dev
name: Alpay Celik
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: none
  source:
  - security
  generated: '2026-11-02'
  method: derived
image: https://alpaycelik.dev/portrait.webp
description: Alpay Celik is an AI full‑stack engineer based in North Rhine‑Westphalia, Germany, offering end‑to‑end software
  development services. The site showcases capabilities in building AI‑driven applications, covering data modeling, API design,
  front‑end implementation, and deployment. It highlights projects such as MCP migration checks, Abfall‑MCP, and Claude skill
  sets, and provides links to GitHub repositories, a status page, and an llms.txt index. The portfolio emphasizes agentic
  development, modern tooling, and a focus on verifiable, evidence‑backed software solutions.
url: https://artifacts.apis.io/alpaycelik-dev/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-01 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-01'
modified: '2026-11-01'
tags:
- Artificial Intelligence
- Full-Stack
- Engineer
- Germany
- Software Development
- Portfolio
tags_raw:
- AI
- Fullstack
- Engineer
- Germany
- Software Development
- Portfolio
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: LLMsTxt
  url: llms/alpaycelik-dev-llms.txt
- type: Hosts
  url: hosts/alpaycelik-dev-hosts.yml
- type: Vendors
  url: vendors/alpaycelik-dev-vendors.yml
- type: GitHubOrganization
  url: https://github.com/AlpayC
- type: ChangeLog
  url: https://github.com/AlpayC/mcp-migration-check/releases/latest
- type: DomainSecurity
  url: security/alpaycelik-dev-domain-security.yml
- type: Website
  url: https://alpaycelik.dev/
apis: []
x-coverage:
  state: none
  reason: no-developer-program
  detail: No public API documentation or OpenAPI spec found; all probes to typical spec URLs returned 404.
  evidence:
  - url: https://api.alpaycelik.dev/openapi.json
    status: 404
  checked: '2026-11-01'
x-enrichment:
  date: '2026-11-01'
  status: enriched
  artifacts_added: 9
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
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apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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