Axl Guillen — 4XL bronze

axl13.dev

“Informational agent for Axl Guillen's portfolio: answers about his projects (case studies), blog articles, profile and contact. Read-only. It does not implement A2A message/send; talk to it through the MCP endpoint (JSON-RPC 2.0 over Streamable HTTP) or read any page as markdown with Accept: text/markdown.

a2a https://axl13.dev/mcp talk to it https://axl13.dev/.well-known/agent-card.json its card

🇺🇸 US · Amazon.com, Inc. Checked 12h ago extendedAgentCard, pushNotifications, stateTransitionHistory, streaming

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Let's Encrypt domain-validated
Valid until 8 Jan 2027 as of our check on 15 Nov 2026.

Control of the hostname was checked; nothing about who operates it.

Key RSA 2048, signed SHA256-RSA, issued via YR1 under ISRG Root X1 — classical, as every publicly trusted certificate is today.

Names on this certificate (1)

axl13.dev.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 15 Nov 2026. What this means
DANE / TLSA: Not verified
Discovery: Well-known document
This host also publishes an ARD catalog (/.well-known/ai-catalog.json) declaring 5 resources. The catalog's entries are the publisher's claims, not something agenttru.st verified.
AI use policy: Search: yesAI input: yesAI training: no

What this site's robots.txt says about how AI may use its content. Recorded as the operator wrote it, not enforced — these are preferences about use, not access, and agenttru.st only reads the agent's own discovery documents.
AI-facing documents: Publishes /llms.txt — “Axl Guillen — 4XL” a curated map of the site's content for language models

Fetched from this host during verification. Neither document is how this agent was discovered.
First seen: 10 Oct 2026

View verification details

Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: 🇺🇸 US · Amazon.com, Inc. (AS16509)
Last checked: 12h ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of axl13.dev controls every word below.

List projects

Lists Axl Guillen's documented projects (case studies) with title, one-line summary, period, stack and URL.

portfolioread-only

Read a project case study

Returns one case study in full as markdown: the brief, the problem, the decision and the result, plus stack, period and links.

portfolioread-only

List blog articles

Lists the blog articles with title, summary, date, reading time and URL.

portfolioread-only

Read a blog article

Returns one blog article in full as markdown.

portfolioread-only

About Axl Guillen

Returns the profile: role, location, education, current job, stack with project counts, and the about text as markdown.

portfolioread-only

Contact channels

Returns how to reach Axl Guillen: email, LinkedIn and GitHub, with URLs.

portfolioread-only

What its catalog declares

From the ARD catalog this host publishes at /.well-known/ai-catalog.json. The operator controls every entry; agenttru.st verified that the catalog exists and parses, and nothing about what the entries say.

Portfolio MCP server

mcp-server-card

Read-only MCP server exposing Axl Guillen's projects, articles, profile and contact as tools and markdown resources.

https://axl13.dev/.well-known/mcp/server-card.json

Portfolio agent card

json

A2A agent card describing the informational agent, its skills and interfaces.

https://axl13.dev/.well-known/agent-card.json

Portfolio HTTP API

vnd.oai.openapi

OpenAPI 3.1 description of the markdown content negotiation, the MCP endpoint and the health check.

https://axl13.dev/openapi.json

Site overview for language models

text/markdown

llms.txt: a one-page map of the portfolio with links to every project and article.

https://axl13.dev/llms.txt

Agent skills

json

Skill documents teaching an agent to read the site as markdown and to use the MCP server.

https://axl13.dev/.well-known/agent-skills/index.json

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider: Axl Guillen — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 3.0.0
Card completeness: complete all eight fields required by a2a.proto v1.0

View all card details

Capabilities: extendedAgentCard pushNotifications stateTransitionHistory streaming
Agent card: https://axl13.dev/.well-known/agent-card.json

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