three.ws Model Check
Make a 3D AI agent from a selfie in 60 seconds. Drop one HTML tag to embed it on any website. Agents think on IBM watsonx.ai (Granite); optionally charge per chat with built-in micropayments.
InferenceLiveeip155:8453Exactvia cdp
3dGltfGlbInspectionValidation
Settlements · 30d
4
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$0.19
Verified settled volume
59 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-06-18 05:13Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x4022de2d36c334e73c7a108805cea11c0564f402The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "X-PAYMENT header is required",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"decimals": 6,
"feePayer": "WwwuGbqHrwF5RG89KhUbmRWEvjnRH9k5kVM5p7T3WwW"
},
"payTo": "wwwwwDxFWRn7grgr3Esrsg5C6NvDoDHSA4gaCffccrU",
"amount": "1000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "https://three.ws/api/x402/model-check",
"maxTimeoutSeconds": 60
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"decimals": 6
},
"payTo": "0x4022de2d36c334e73c7a108805cea11c0564f402",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://three.ws/api/x402/model-check",
"maxTimeoutSeconds": 60
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"decimals": 6,
"supportsEip2612": true,
"assetTransferMethod": "permit2"
},
"payTo": "0x4022de2d36c334e73c7a108805cea11c0564f402",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://three.ws/api/x402/model-check",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://three.ws/api/x402/model-check",
"tags": [
"3d",
"gltf",
"glb",
"inspection",
"validation"
],
"iconUrl": "https://three.ws/favicon.ico",
"mimeType": "application/json",
"description": "three.ws — agent-first 3D platform: drag-and-drop glTF/GLB preview plus model validation, inspection, and optimization, with Solana agent data, all reachable as MCP tools or pay-per-call x402 endpoints. This Model Check route fetches a glTF/GLB model from a URL and returns structural stats (vertices, triangles, materials, textures, animations, extensions) plus a prioritized list of optimization recommendations. Pay-per-call in USDC on Solana mainnet.",
"serviceName": "three.ws Model Check"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://three.ws/avatars/mannequin.glb"
}
},
"output": {
"type": "json",
"example": {
"url": "https://three.ws/avatars/mannequin.glb",
"model": {
"counts": {
"nodes": 18,
"skins": 1,
"meshes": 6,
"scenes": 1,
"textures": 3,
"materials": 4,
"animations": 1,
"totalVertices": 12480,
"totalTriangles": 24812,
"indexedPrimitives": 6,
"nonIndexedPrimitives": 0
},
"version": "2.0",
"container": "glb",
"generator": "three.ws CharacterStudio v1.5",
"extensionsUsed": [
"KHR_materials_unlit"
],
"extensionsRequired": []
},
"suggestions": [
{
"id": "texture_size",
"message": "All textures are within 1024x1024 — good for mobile.",
"severity": "info"
}
],
"fetchedBytes": 1572864
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Public HTTPS URL of a glTF (.gltf) or binary glTF (.glb) model. Max 16 MiB."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"url",
"fetchedBytes",
"model",
"suggestions"
],
"properties": {
"url": {
"type": "string",
"format": "uri"
},
"model": {
"type": "object",
"required": [
"container",
"counts"
],
"properties": {
"counts": {
"type": "object",
"properties": {
"nodes": {
"type": "integer"
},
"skins": {
"type": "integer"
},
"meshes": {
"type": "integer"
},
"scenes": {
"type": "integer"
},
"textures": {
"type": "integer"
},
"materials": {
"type": "integer"
},
"animations": {
"type": "integer"
},
"totalVertices": {
"type": "integer"
},
"totalTriangles": {
"type": "integer"
},
"indexedPrimitives": {
"type": "integer"
},
"nonIndexedPrimitives": {
"type": "integer"
}
}
},
"version": {
"type": [
"string",
"null"
]
},
"container": {
"enum": [
"glb",
"gltf"
],
"type": "string"
},
"generator": {
"type": [
"string",
"null"
]
},
"extensionsUsed": {
"type": "array",
"items": {
"type": "string"
}
},
"extensionsRequired": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"suggestions": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"severity",
"message"
],
"properties": {
"id": {
"type": "string"
},
"message": {
"type": "string"
},
"estimate": {
"type": "string"
},
"severity": {
"enum": [
"info",
"warn",
"critical"
],
"type": "string"
}
}
}
},
"fetchedBytes": {
"type": "integer"
}
}
}
}
}
}
},
"discoverable": true
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "jws",
"signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6dGhyZWUud3Mja2V5LTEifQ.eyJhbW91bnQiOiIxMDAwIiwiYXNzZXQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm5ldHdvcmsiOiJzb2xhbmE6NWV5a3Q0VXNGdjhQOE5KZFRSRXBZMXZ6cUtxWkt2ZHAiLCJwYXlUbyI6Ind3d3d3RHhGV1JuN2dyZ3IzRXNyc2c1QzZOdkRvREhTQTRnYUNmZmNjclUiLCJyZXNvdXJjZVVybCI6Imh0dHBzOi8vdGhyZWUud3MvYXBpL3g0MDIvbW9kZWwtY2hlY2siLCJzY2hlbWUiOiJleGFjdCIsInZhbGlkVW50aWwiOjE3OTAwNzk2MTIsInZlcnNpb24iOjF9.-PK0unzYLDGwyr0iz57CF_q0p79PtXTNQDAURIHoZi7NMTc1LKZRQw8wz8xkFyrTCoFFe8qvOxdjmlmU1cV6BA",
"acceptIndex": 0
},
{
"format": "jws",
"signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6dGhyZWUud3Mja2V5LTEifQ.eyJhbW91bnQiOiIxMDAwIiwiYXNzZXQiOiIweDgzMzU4OWZDRDZlRGI2RTA4ZjRjN0MzMkQ0ZjcxYjU0YmRBMDI5MTMiLCJuZXR3b3JrIjoiZWlwMTU1Ojg0NTMiLCJwYXlUbyI6IjB4NDAyMmRlMmQzNmMzMzRlNzNjN2ExMDg4MDVjZWExMWMwNTY0ZjQwMiIsInJlc291cmNlVXJsIjoiaHR0cHM6Ly90aHJlZS53cy9hcGkveDQwMi9tb2RlbC1jaGVjayIsInNjaGVtZSI6ImV4YWN0IiwidmFsaWRVbnRpbCI6MTc5MDA3OTYxMiwidmVyc2lvbiI6MX0.xMacfvxpsk51LMms-nIOYRmrSRypGMRpjF5krD0kfvg2ci0rY2UELV7YePNA567xYuycxbAzSGMZxE3_A4PIDw",
"acceptIndex": 1
},
{
"format": "jws",
"signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6dGhyZWUud3Mja2V5LTEifQ.eyJhbW91bnQiOiIxMDAwIiwiYXNzZXQiOiIweDgzMzU4OWZDRDZlRGI2RTA4ZjRjN0MzMkQ0ZjcxYjU0YmRBMDI5MTMiLCJuZXR3b3JrIjoiZWlwMTU1Ojg0NTMiLCJwYXlUbyI6IjB4NDAyMmRlMmQzNmMzMzRlNzNjN2ExMDg4MDVjZWExMWMwNTY0ZjQwMiIsInJlc291cmNlVXJsIjoiaHR0cHM6Ly90aHJlZS53cy9hcGkveDQwMi9tb2RlbC1jaGVjayIsInNjaGVtZSI6ImV4YWN0IiwidmFsaWRVbnRpbCI6MTc5MDA3OTYxMiwidmVyc2lvbiI6MX0.xMacfvxpsk51LMms-nIOYRmrSRypGMRpjF5krD0kfvg2ci0rY2UELV7YePNA567xYuycxbAzSGMZxE3_A4PIDw",
"acceptIndex": 2
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
},
"includeTxHash": false,
"offerValiditySeconds": 60
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"required"
],
"properties": {
"id": {
"type": "string",
"pattern": "^[a-zA-Z0-9_-]+$",
"maxLength": 128,
"minLength": 16
},
"required": {
"type": "boolean"
}
}
}
},
"eip2612GasSponsoring": {
"info": {
"version": "1",
"description": "The facilitator accepts EIP-2612 gasless Permit to `Permit2` canonical contract."
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"from",
"asset",
"spender",
"amount",
"nonce",
"deadline",
"signature",
"version"
],
"properties": {
"from": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the sender."
},
"asset": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the ERC-20 token contract."
},
"nonce": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "The current nonce of the sender."
},
"amount": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "The amount to approve (uint256). Typically MaxUint."
},
"spender": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the spender (Canonical Permit2)."
},
"version": {
"type": "string",
"pattern": "^[0-9]+(\\.[0-9]+)*$",
"description": "Schema version identifier."
},
"deadline": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "The timestamp at which the signature expires."
},
"signature": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$",
"description": "The 65-byte concatenated signature (r, s, v) as a hex string."
}
}
}
},
"erc20ApprovalGasSponsoring": {
"info": {
"version": "1",
"description": "The facilitator broadcasts a pre-signed ERC-20 approve() transaction to grant Permit2 allowance."
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"from",
"asset",
"spender",
"amount",
"signedTransaction",
"version"
],
"properties": {
"from": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the sender (token owner)."
},
"asset": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the ERC-20 token contract."
},
"amount": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "The amount approved (uint256). Always MaxUint256."
},
"spender": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the spender (Canonical Permit2)."
},
"version": {
"type": "string",
"pattern": "^[0-9]+(\\.[0-9]+)*$",
"description": "Schema version identifier."
},
"signedTransaction": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$",
"description": "The RLP-encoded signed EIP-1559 transaction as a hex string."
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.001USDC≈ $0.001 USD
on Base · exact scheme
Pay 0.001 USDC on Base to 0x4022…4f402. The signed payment is good for 1 minute.
- Paid to
- 0x4022…4f402
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 1000 smallest units
0.001USDC≈ $0.001 USD
on Base · exact scheme
Pay 0.001 USDC on Base to 0x4022…4f402. The signed payment is good for 1 minute.
- Paid to
- 0x4022…4f402
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 1000 smallest units
1000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- wwwPqs…QfUGV
- Token contract
- EPjFWd…TDt1v
- Payment window
- 1 minute
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"decimals": 6
},
"payTo": "0x4022de2d36c334e73c7a108805cea11c0564f402",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://three.ws/api/x402/model-check",
"maxTimeoutSeconds": 60
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"decimals": 6,
"supportsEip2612": true,
"assetTransferMethod": "permit2"
},
"payTo": "0x4022de2d36c334e73c7a108805cea11c0564f402",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://three.ws/api/x402/model-check",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"decimals": 6,
"feePayer": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
},
"payTo": "wwwPqsM4N7T9J69tB82nLyzxqsH159j4orftLTQfUGV",
"amount": "1000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"resource": "https://three.ws/api/x402/model-check",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://three.ws/avatar/character-studio/sample.glb"
}
},
"output": {
"type": "json",
"example": {
"url": "https://three.ws/avatar/character-studio/sample.glb",
"model": {
"counts": {
"nodes": 18,
"skins": 1,
"meshes": 6,
"scenes": 1,
"textures": 3,
"materials": 4,
"animations": 1,
"totalVertices": 12480,
"totalTriangles": 24812,
"indexedPrimitives": 6,
"nonIndexedPrimitives": 0
},
"version": "2.0",
"container": "glb",
"generator": "three.ws CharacterStudio v1.5",
"extensionsUsed": [
"KHR_materials_unlit"
],
"extensionsRequired": []
},
"suggestions": [
{
"id": "texture_size",
"message": "All textures are within 1024x1024 — good for mobile.",
"severity": "info"
}
],
"fetchedBytes": 1572864
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Public HTTPS URL of a glTF (.gltf) or binary glTF (.glb) model. Max 16 MiB."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"url",
"fetchedBytes",
"model",
"suggestions"
],
"properties": {
"url": {
"type": "string",
"format": "uri"
},
"model": {
"type": "object",
"required": [
"container",
"counts"
],
"properties": {
"counts": {
"type": "object",
"properties": {
"nodes": {
"type": "integer"
},
"skins": {
"type": "integer"
},
"meshes": {
"type": "integer"
},
"scenes": {
"type": "integer"
},
"textures": {
"type": "integer"
},
"materials": {
"type": "integer"
},
"animations": {
"type": "integer"
},
"totalVertices": {
"type": "integer"
},
"totalTriangles": {
"type": "integer"
},
"indexedPrimitives": {
"type": "integer"
},
"nonIndexedPrimitives": {
"type": "integer"
}
}
},
"version": {
"type": [
"string",
"null"
]
},
"container": {
"enum": [
"glb",
"gltf"
],
"type": "string"
},
"generator": {
"type": [
"string",
"null"
]
},
"extensionsUsed": {
"type": "array",
"items": {
"type": "string"
}
},
"extensionsRequired": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"suggestions": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"severity",
"message"
],
"properties": {
"id": {
"type": "string"
},
"message": {
"type": "string"
},
"estimate": {
"type": "string"
},
"severity": {
"enum": [
"info",
"warn",
"critical"
],
"type": "string"
}
}
}
},
"fetchedBytes": {
"type": "integer"
}
}
}
}
}
}
},
"discoverable": true
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"required"
],
"properties": {
"id": {
"type": "string",
"pattern": "^[a-zA-Z0-9_-]+$",
"maxLength": 128,
"minLength": 16
},
"required": {
"type": "boolean"
}
}
}
},
"eip2612GasSponsoring": {
"info": {
"version": "1",
"description": "The facilitator accepts EIP-2612 gasless Permit to `Permit2` canonical contract."
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"from",
"asset",
"spender",
"amount",
"nonce",
"deadline",
"signature",
"version"
],
"properties": {
"from": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the sender."
},
"asset": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the ERC-20 token contract."
},
"nonce": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "The current nonce of the sender."
},
"amount": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "The amount to approve (uint256). Typically MaxUint."
},
"spender": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the spender (Canonical Permit2)."
},
"version": {
"type": "string",
"pattern": "^[0-9]+(\\.[0-9]+)*$",
"description": "Schema version identifier."
},
"deadline": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "The timestamp at which the signature expires."
},
"signature": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$",
"description": "The 65-byte concatenated signature (r, s, v) as a hex string."
}
}
}
},
"erc20ApprovalGasSponsoring": {
"info": {
"version": "1",
"description": "The facilitator broadcasts a pre-signed ERC-20 approve() transaction to grant Permit2 allowance."
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"from",
"asset",
"spender",
"amount",
"signedTransaction",
"version"
],
"properties": {
"from": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the sender (token owner)."
},
"asset": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the ERC-20 token contract."
},
"amount": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "The amount approved (uint256). Always MaxUint256."
},
"spender": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "The address of the spender (Canonical Permit2)."
},
"version": {
"type": "string",
"pattern": "^[0-9]+(\\.[0-9]+)*$",
"description": "Schema version identifier."
},
"signedTransaction": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]+$",
"description": "The RLP-encoded signed EIP-1559 transaction as a hex string."
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-06-18 05:13Z
- Last indexed by Roundhouse
- 2026-07-16 20:50Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 12:15Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service three.ws Model Check and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=three.ws%20Model%20Check' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://three.ws/api/x402/model-check, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.