saylorinnovations.com
No description published for this endpoint.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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": "Payment required to access this resource.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"memo": "saylor:datadesk:exoplanet-archiv",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"memo": "saylor:datadesk:exoplanet-archiv",
"name": "USD Coin",
"note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"memo": "saylor:datadesk:exoplanet-archiv",
"name": "USD Coin",
"note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"memo": "saylor:datadesk:exoplanet-archiv",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleG9wbGFuZXQtYXJjaGl2ZSIsInJlZmVyZW5jZSI6IkQzbWNiZWpiVFphOFN4dUtjaTdRMUhCVVFLQTNpYTI2SjU2TFU1V1JmUTVGIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTIzNjU0NDYwMDN9.es7oSem2te4LXsPmYKq2ap-A_jhP1RV8SrZOPJu4yJ8",
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"reference": "D3mcbejbTZa8SxuKci7Q1HBUQKA3ia26J56LU5WRfQ5F"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"memo": "saylor:datadesk:exoplanet-archiv",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleG9wbGFuZXQtYXJjaGl2ZSIsInJlZmVyZW5jZSI6IkVLOFNpOG5KTEJ4WmZhNUpaVUFIUWdyUFgycU1MenNrZUM4YnFVRGk3azZRIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTIzNjU0NDYwMDN9.-ygeU3tghdYwfhFXH0UHrKgIa2b5GDDoqCZMDP6HB_I",
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"reference": "EK8Si8nJLBxZfa5JZUAHQgrPX2qMLzskeC8bqUDi7k6Q"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:exoplanet-archiv",
"note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
"native": true,
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpleG9wbGFuZXQtYXJjaGl2ZSIsInJlZmVyZW5jZSI6InJnZVgyaU1uRDlEVzUxblljZlc1NzFiZEI2RG54ZzFRSk5hSnFDQ1BSTTMiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTM1MjAsImV4cCI6MTc5MjM2NTQ0NjAwM30.ZhtyxJ6Wr4pZoDrxZ7D-m4Ae5mg__7fj9q8dsA6VH4I",
"reference": "rgeX2iMnD9DW51nYcfW571bdB6Dnxg1QJNaJqCCPRM3",
"solUsdPrice": 103.72,
"quotedLamports": "96413"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "93520",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://saylorinnovations.com/api/space/exoplanets?q=trappist",
"tags": [
"exoplanet lookup",
"confirmed exoplanets by name",
"newest discovered exoplanets",
"trappist-1 planets",
"planet radius and equilibrium"
],
"iconUrl": "https://saylorinnovations.com/og-image.jpg",
"mimeType": "application/json",
"description": "Confirmed exoplanets from the NASA Exoplanet Archive by planet or star name - radius, mass, orbital period, temperature, distance and discovery method",
"serviceName": "Saylor Innovations Data Desk"
},
"extensions": {
"tags": [
"exoplanet lookup",
"confirmed exoplanets by name",
"newest discovered exoplanets",
"trappist-1 planets",
"planet radius and equilibrium temperature",
"nasa exoplanet archive"
],
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "trappist"
}
},
"output": {
"type": "json",
"example": {
"note": "Confirmed planets only, newest discoveries first, using the default solution for each planet.",
"query": "trappist",
"source": "NASA Exoplanet Archive",
"planets": [
{
"name": "TRAPPIST-1 e",
"facility": "Multiple Observatories",
"host_star": "TRAPPIST-1",
"mass_earth": 0.69,
"star_temp_k": 2566,
"radius_earth": 0.92,
"discovery_year": 2017,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 6.101,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 f",
"facility": "Multiple Observatories",
"host_star": "TRAPPIST-1",
"mass_earth": 1.04,
"star_temp_k": 2566,
"radius_earth": 1.05,
"discovery_year": 2017,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 9.208,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 g",
"facility": "Multiple Observatories",
"host_star": "TRAPPIST-1",
"mass_earth": 1.32,
"star_temp_k": 2566,
"radius_earth": 1.13,
"discovery_year": 2017,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 12.352,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 h",
"facility": "Multiple Observatories",
"host_star": "TRAPPIST-1",
"mass_earth": 0.33,
"star_temp_k": 2566,
"radius_earth": 0.76,
"discovery_year": 2017,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 18.773,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 b",
"facility": "La Silla Observatory",
"host_star": "TRAPPIST-1",
"mass_earth": 1.37,
"star_temp_k": 2566,
"radius_earth": 1.12,
"discovery_year": 2016,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 1.511,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 c",
"facility": "La Silla Observatory",
"host_star": "TRAPPIST-1",
"mass_earth": 1.31,
"star_temp_k": 2566,
"radius_earth": 1.1,
"discovery_year": 2016,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 2.422,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 d",
"facility": "La Silla Observatory",
"host_star": "TRAPPIST-1",
"mass_earth": 0.39,
"star_temp_k": 2566,
"radius_earth": 0.79,
"discovery_year": 2016,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 4.049,
"star_distance_parsecs": null
}
],
"returned": 7
}
}
},
"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"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "optional planet or star name, e.g. trappist, kepler-22, proxima"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"planets"
],
"properties": {
"note": {
"type": "string",
"description": "Caveat or context for reading the result"
},
"query": {
"type": [
"string",
"null"
],
"description": "The query as the server interpreted it"
},
"source": {
"type": "string",
"description": "Data source the values come from"
},
"planets": {
"type": "array",
"items": {
"type": "object",
"properties": {
"name": {
"description": "Name"
},
"facility": {
"type": [
"string",
"null"
],
"description": "Observatory or survey that discovered the planet"
},
"host_star": {
"description": "Host star"
},
"mass_earth": {
"description": "Mass earth"
},
"star_temp_k": {
"description": "Star temp k"
},
"radius_earth": {
"description": "Radius earth"
},
"discovery_year": {
"description": "Discovery year"
},
"discovery_method": {
"description": "Discovery method"
},
"planets_in_system": {
"description": "Planets in system"
},
"equilibrium_temp_k": {
"description": "Equilibrium temp k"
},
"orbital_period_days": {
"description": "Orbital period days"
},
"star_distance_parsecs": {
"description": "Star distance parsecs"
}
}
},
"description": "Planet positions"
},
"returned": {
"type": "number",
"description": "Number of items in this response"
}
}
}
}
}
}
}
},
"method": "GET",
"example": {
"note": "Confirmed planets only, newest discoveries first, using the default solution for each planet.",
"query": "trappist",
"source": "NASA Exoplanet Archive",
"planets": [
{
"name": "TRAPPIST-1 e",
"facility": "Multiple Observatories",
"host_star": "TRAPPIST-1",
"mass_earth": 0.69,
"star_temp_k": 2566,
"radius_earth": 0.92,
"discovery_year": 2017,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 6.101,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 f",
"facility": "Multiple Observatories",
"host_star": "TRAPPIST-1",
"mass_earth": 1.04,
"star_temp_k": 2566,
"radius_earth": 1.05,
"discovery_year": 2017,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 9.208,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 g",
"facility": "Multiple Observatories",
"host_star": "TRAPPIST-1",
"mass_earth": 1.32,
"star_temp_k": 2566,
"radius_earth": 1.13,
"discovery_year": 2017,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 12.352,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 h",
"facility": "Multiple Observatories",
"host_star": "TRAPPIST-1",
"mass_earth": 0.33,
"star_temp_k": 2566,
"radius_earth": 0.76,
"discovery_year": 2017,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 18.773,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 b",
"facility": "La Silla Observatory",
"host_star": "TRAPPIST-1",
"mass_earth": 1.37,
"star_temp_k": 2566,
"radius_earth": 1.12,
"discovery_year": 2016,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 1.511,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 c",
"facility": "La Silla Observatory",
"host_star": "TRAPPIST-1",
"mass_earth": 1.31,
"star_temp_k": 2566,
"radius_earth": 1.1,
"discovery_year": 2016,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 2.422,
"star_distance_parsecs": null
},
{
"name": "TRAPPIST-1 d",
"facility": "La Silla Observatory",
"host_star": "TRAPPIST-1",
"mass_earth": 0.39,
"star_temp_k": 2566,
"radius_earth": 0.79,
"discovery_year": 2016,
"discovery_method": "Transit",
"planets_in_system": 7,
"equilibrium_temp_k": null,
"orbital_period_days": 4.049,
"star_distance_parsecs": null
}
],
"returned": 7
},
"license": "LicenseRef-Saylor-Agent-Use-1.0",
"mimeType": "application/json",
"freshness": "fetched live (cached up to 1 hour for large reference files)",
"tokenCount": null,
"inputSchema": {
"q": "optional planet or star name, e.g. trappist, kepler-22, proxima",
"limit": "optional 1-30, default 10"
},
"serviceName": "Saylor Innovations Data Desk",
"instructions": "STANDARD PATH (works with stock x402 clients): send payload.transaction — a base64 partially-signed Solana transaction — and we route verify/settle through an x402 facilitator that sponsors the fee and submits it. Include the chosen accepts entry as \"accepted\" so we can match terms. ALTERNATIVE PATH (no facilitator): Pick ONE entry from accepts and use the reference and session from THAT entry — each asset has its own. USDC or USDT: send an SPL transfer of the exact amount. Native SOL (asset=So11111111111111111111111111111111111111112, extra.native=true): send that many lamports with a system transfer. Either way include extra.reference as a read-only account (Solana Pay style), then retry with PAYMENT-SIGNATURE: base64({x402Version:2, payload:{session, reference}}). If your client cannot attach a reference, send payload.signature instead (USDC only). SOL amounts are quoted live and expire in 120s; stablecoins do not move. The facilitator path verifies and settles in this request. Only the alternative self-submitted Solana path needs retries while the transfer is indexed (typically 3-4 attempts over 10-20s). On that path, a 402 saying \"payment not found on-chain yet\" means keep retrying.",
"outputSchema": {
"type": "object",
"required": [
"planets"
],
"properties": {
"note": {
"type": "string"
},
"query": {
"type": [
"string",
"null"
]
},
"source": {
"type": "string"
},
"planets": {
"type": "array",
"items": {
"type": "object",
"properties": {
"facility": {
"type": [
"string",
"null"
],
"description": "Observatory or survey that discovered the planet"
}
}
}
},
"returned": {
"type": "number"
}
}
},
"noPathTemplate": true,
"settlementModes": [
"facilitator-transaction",
"self-submitted-reference"
],
"typicalLatencyMs": 700
},
"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.
Pay 0.01 USDC on Base to 0xA2A8…fc8aa. The signed payment is good for 2 minutes.
- Paid to
- 0xA2A8…fc8aa
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 10000 smallest units
- Returns
- application/json
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
- 0xA2A8…fc8aa
- Token contract
- 0x3c49…c3359
- Payment window
- 2 minutes
- Returns
- application/json
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
- 0xA2A8…fc8aa
- Token contract
- 0xaf88…e5831
- Payment window
- 2 minutes
- Returns
- application/json
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
- 7LSjfr…Xacy7
- Token contract
- EPjFWd…TDt1v
- Payment window
- 2 minutes
- Returns
- application/json
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
- 7LSjfr…Xacy7
- Token contract
- Es9vMF…nwNYB
- Payment window
- 2 minutes
- Returns
- application/json
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
- 7LSjfr…Xacy7
- Token contract
- So1111…11112
- Payment window
- 2 minutes
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/space/exoplanets",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact",
"network": "eip155:137",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/space/exoplanets",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact",
"network": "eip155:42161",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/space/exoplanets",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/space/exoplanets",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/space/exoplanets",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/space/exoplanets",
"description": "",
"maxAmountRequired": "91933",
"maxTimeoutSeconds": 120
}
]Provenance
- Seen in the source catalog
- 2026-10-19 05:30Z
- Last indexed by Roundhouse
- 2026-10-25 08:15Z
- Last enriched (probe, favicon, geo)
- 2026-10-18 23:15Z
- x402 version
- 1
- Max timeout
- 120s
- 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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 13 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
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Using Roundhouse, look up the x402 service saylorinnovations.com 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=saylorinnovations.com' 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://saylorinnovations.com/api/space/exoplanets, 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. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.