Back to Free3D.io Catalog Agent
Card snapshot
free3d.io
·
2026-11-12 15:46:55 UTC
·
26aa2cf9c952ff1e88555ee33f5ff2988a83b748e94c9afbb75a1344181361f0
This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.
{
"name": "Free3D.io Catalog Agent",
"description": "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.",
"version": "1.0.0",
"documentationUrl": "https://free3d.io/x402/docs.html",
"iconUrl": "https://free3d.io/images/logo.svg",
"provider": {
"organization": "Free3D.io",
"url": "https://free3d.io"
},
"supportedInterfaces": [
{
"url": "https://free3d.io/",
"protocolBinding": "HTTP+JSON",
"protocolVersion": "1.0"
},
{
"url": "https://free3d.io/x402/verify",
"protocolBinding": "HTTP+JSON",
"protocolVersion": "1.0"
}
],
"capabilities": {
"streaming": false,
"pushNotifications": false,
"extendedAgentCard": false,
"extensions": [
{
"uri": "https://github.com/coinbase/x402",
"description": "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.",
"required": true,
"params": {
"pricingUrl": "https://free3d.io/x402/pricing.json",
"paymentSkillUrl": "https://free3d.io/.well-known/agent-skills/x402-payment.SKILL.md",
"docsUrl": "https://free3d.io/x402/docs.html",
"protectedResourceMetadata": "https://free3d.io/.well-known/oauth-protected-resource"
}
},
{
"uri": "https://cloudflare.pay/",
"description": "Optional Cloudflare Wallet merchant identity (boogiemuffin.cloudflare.pay). Buyers may pay with CF Account/Virtual Wallets via the same x402 challenge \u2014 no checkout redirect.",
"required": false,
"params": {
"handle": "boogiemuffin.cloudflare.pay",
"blog": "https://blog.cloudflare.com/wallets/",
"runbook": "https://free3d.io/x402/docs.html"
}
}
]
},
"defaultInputModes": [
"text/plain",
"text/html",
"text/markdown",
"application/json"
],
"defaultOutputModes": [
"text/html",
"text/markdown",
"application/json",
"application/octet-stream"
],
"securitySchemes": {
"paymentSignature": {
"type": "apiKey",
"in": "header",
"name": "PAYMENT-SIGNATURE",
"description": "x402 PaymentPayload as base64 JSON (or raw JSON). Prefer PAYMENT-SIGNATURE (v2); X-PAYMENT also accepted for v1 clients."
},
"xPaymentV1": {
"type": "apiKey",
"in": "header",
"name": "X-PAYMENT",
"description": "x402 v1: same base64 PaymentPayload as PAYMENT-SIGNATURE. Legacy on-chain uses X-Payment: <tx>:<network> instead."
},
"apiKey": {
"type": "apiKey",
"in": "header",
"name": "X-API-Key",
"description": "Subscription API key (purchase via free3dio@pm.me)"
}
},
"security": [
{
"paymentSignature": []
},
{
"xPaymentV1": []
},
{
"apiKey": []
}
],
"skills": [
{
"id": "discover-policy",
"name": "Discover Agent Policy",
"description": "Read the public llms.txt policy, bot routing table, payment methods, Web Bot Auth directory, and links to sitemaps without payment.",
"tags": [
"discovery",
"policy",
"llms",
"public",
"web-bot-auth"
],
"examples": [
"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"
],
"inputModes": [
"text/plain"
],
"outputModes": [
"text/plain",
"text/markdown"
]
},
{
"id": "sign-outbound",
"name": "Sign Outbound Requests (Web Bot Auth)",
"description": "Attach Signature-Agent, Signature-Input, and Signature headers (tag=web-bot-auth) when free3d.io agents call other sites.",
"tags": [
"web-bot-auth",
"signatures",
"ed25519"
],
"examples": [
"Signature-Agent: \"https://free3d.io\"",
"Use WebBotAuth::outboundRequestHeaders(url) or scripts/web-bot-auth-sign-request.mjs"
],
"inputModes": [
"text/plain",
"application/json"
],
"outputModes": [
"application/json"
]
},
{
"id": "browse-catalog",
"name": "Browse 3D Model Catalog",
"description": "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.",
"tags": [
"catalog",
"3d-models",
"sitemap",
"interior",
"architecture"
],
"examples": [
"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}"
],
"inputModes": [
"text/plain",
"application/json"
],
"outputModes": [
"text/html",
"text/markdown",
"application/json"
]
},
{
"id": "access-model",
"name": "Access Model Page and Download",
"description": "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.",
"tags": [
"download",
"3d-model",
"x402",
"paywall"
],
"examples": [
"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"
],
"inputModes": [
"application/json",
"text/plain"
],
"outputModes": [
"text/html",
"text/markdown",
"application/json",
"application/octet-stream"
]
},
{
"id": "verify-legacy-payment",
"name": "Verify On-Chain Payment",
"description": "Exchange a confirmed on-chain USDC/PYUSD transfer for a one-time X-Access-Token via POST /x402/verify.",
"tags": [
"x402",
"payment",
"verify",
"token"
],
"examples": [
"POST /x402/verify with tx_hash, network, and resource_id"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
},
{
"id": "get-pricing",
"name": "Get Pricing and Payment Options",
"description": "Return machine-readable x402 accepts, networks, tokens, and API key subscription plans from pricing.json.",
"tags": [
"pricing",
"x402",
"payment"
],
"examples": [
"GET https://free3d.io/x402/pricing.json"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
}
]
}