agenttru.st

Free3D.io Catalog Agent bronze

free3d.io

“Agent interface for the free3d.io archive of 100,000+ free 3D models (interior, architecture, games). Human browsing is free; automated agent access to catalog pages and model downloads requires x402 payment ($0.10 USDC/USDT/PYUSD per request on Base, Ethereum, Arbitrum, Solana, or TRON) or a subscription API key. Public discovery via llms.txt, sitemaps, and Agent Skills; paid access via PAYMENT-SIGNATURE (EIP-3009 on EVM), legacy X-Payment (EVM/Solana/TRON), or X-API-Key.

https://free3d.io/.well-known/agent-card.json its card
Checked 4d ago extendedAgentCard, extensions, pushNotifications, streaming

we checked this    the operator says this

Community rating 0 0 up · 0 down — sign in to vote

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 Google Trust Services domain-validated
Valid until 8 Jan 2027 as of our check on 11 Nov 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.
Control of the hostname was checked; nothing about who operates it.
Key ECDSA P-256, signed ECDSA-SHA256, issued via WE1 under GTS Root R4 — classical, as every publicly trusted certificate is today.
Names on this certificate (2)

free3d.io, *.free3d.io.

Connection
TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 11 Nov 2026. What this means
DANE / TLSA
Not verified
Discovery
Well-known document
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 — “free3D.io” a curated map of the site's content for language models
Publishes a Web Bot Auth key directory (1 key, Ed25519) — the operator publishes keys so their agent's signed requests can be verified. agenttru.st recorded that the directory exists; it has not verified a signature.
Fetched from this host during verification. Neither document is how this agent was discovered.
First seen
14 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
? Unknown · Cloudflare, Inc. (AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
Last checked
4d 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 free3d.io controls every word below.

Discover Agent Policy

Read the public llms.txt policy, bot routing table, payment methods, Web Bot Auth directory, and links to sitemaps without payment.

discoverypolicyllmspublicweb-bot-auth
Examples it gives
  • Fetch https://free3d.io/llms.txt for full agent instructions
  • Fetch https://free3d.io/.well-known/http-message-signatures-directory for Web Bot Auth JWKS
  • List public endpoints: pricing.json, docs.html, openapi.json

Sign Outbound Requests (Web Bot Auth)

Attach Signature-Agent, Signature-Input, and Signature headers (tag=web-bot-auth) when free3d.io agents call other sites.

web-bot-authsignaturesed25519
Examples it gives
  • Signature-Agent: "https://free3d.io"
  • Use WebBotAuth::outboundRequestHeaders(url) or scripts/web-bot-auth-sign-request.mjs

Browse 3D Model Catalog

Discover categories, tags, and model URLs via sitemaps and semantic URLs. Unpaid AI agents receive redirects to documentation; paid agents receive HTML or markdown listings.

catalog3d-modelssitemapinteriorarchitecture
Examples it gives
  • List categories from https://free3d.io/sitemap-cats.xml
  • Fetch https://free3d.io/.well-known/crawler-demand.json for currently popular model hashes
  • Open model teaser https://free3d.io/x402/teaser/{hash} then pay on https://free3d.io/model/{slug}/{hash}

Access Model Page and Download

Retrieve a model detail page or trigger file download. Requires x402 payment or API key for AI agents; returns HTTP 402 with PAYMENT-REQUIRED when unpaid.

download3d-modelx402paywall
Examples it gives
  • GET /model/Parker-Pendant-Wall-Sconce/853248af with PAYMENT-SIGNATURE after EIP-3009 authorization
  • GET /model/{slug}/{hash}?a=download&do=get for file redirect after payment

Verify On-Chain Payment

Exchange a confirmed on-chain USDC/PYUSD transfer for a one-time X-Access-Token via POST /x402/verify.

x402paymentverifytoken
Examples it gives
  • POST /x402/verify with tx_hash, network, and resource_id

Get Pricing and Payment Options

Return machine-readable x402 accepts, networks, tokens, and API key subscription plans from pricing.json.

pricingx402payment
Examples it gives
  • GET https://free3d.io/x402/pricing.json

Technical agent card

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

Provider
Free3D.io — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol
a2a
Version
1.0.0
Auth schemes
apiKey paymentSignature xPaymentV1
Extensions
https://github.com/coinbase/x402 — required of clients
x402 HTTP payment: v2 PAYMENT-SIGNATURE or v1 X-PAYMENT (base64 PaymentPayload / raw JSON); legacy X-Payment tx:network on EVM/Solana/TRON; X-API-Key subscriptions. Start at pricingUrl.
https://cloudflare.pay/
Optional Cloudflare Wallet merchant identity (boogiemuffin.cloudflare.pay). Buyers may pay with CF Account/Virtual Wallets via the same x402 challenge — no checkout redirect.
A2A protocol extensions the card declares. A declared payment extension (AP2, x402) means the operator says the agent can transact, not that agenttru.st has seen it do so.
Card completeness
complete all eight fields required by a2a.proto v1.0
View all card details
Capabilities
extendedAgentCard extensions pushNotifications streaming
Agent card
https://free3d.io/.well-known/agent-card.json

Operate this agent and would rather not be listed? Request removal.