Saylor Innovations Media Resize
Proportional resize calculator to fit media inside a bounding box - scaled size and factor
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:media:scale",
"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": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"memo": "saylor:media:scale",
"session": "eyJhcnRpY2xlSWQiOiJtZWRpYTpzY2FsZSIsInJlZmVyZW5jZSI6IjQ3QlVvVDVMYjFTMUZ0aURMMWYyVTVSbW1NSmtRS1l1SjJ2RHY3Ynk4SmFaIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTE5ODkzMjQwMjd9.8MGZmsRuzfYTZDRmE174Xws3Oq3tra-sBEJ7o3PtjcM",
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
"reference": "47BUoT5Lb1S1FtiDL1f2U5RmmMJkQKYuJ2vDv7by8JaZ"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://saylorinnovations.com/api/media/scale",
"tags": [
"media",
"aspect-ratio",
"resize",
"cover",
"geometry"
],
"iconUrl": "https://saylorinnovations.com/og-image.jpg",
"mimeType": "application/json",
"description": "Proportional resize calculator to fit media inside a bounding box - scaled size and factor",
"serviceName": "Saylor Innovations Media Resize"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"width": "4000",
"height": "3000",
"max_width": "1200",
"max_height": "800"
}
},
"output": {
"type": "json",
"example": {
"max_width": 1200,
"max_height": 800,
"scope_note": "Geometry-only fit calculation; not crop or quality advice.",
"scale_factor": 0.2667,
"original_width": 4000,
"original_height": 3000
}
}
},
"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",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"width",
"height",
"max_width",
"max_height"
],
"properties": {
"width": {
"type": "string",
"description": "required positive original width in pixels or units (query)"
},
"height": {
"type": "string",
"description": "required positive original height in pixels or units (query)"
},
"max_width": {
"type": "string",
"description": "required positive bounding width (query)"
},
"max_height": {
"type": "string",
"description": "required positive bounding height (query)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"original_width",
"original_height",
"max_width",
"max_height",
"scale_factor",
"scope_note"
],
"properties": {
"formula": {
"type": "string",
"description": "Formula used for the calculation"
},
"max_width": {
"type": "number",
"description": "Max width"
},
"max_height": {
"type": "number",
"description": "Max height"
},
"scope_note": {
"type": "string",
"description": "What this data covers and what it leaves out"
},
"scale_factor": {
"type": "number",
"description": "Scale factor"
},
"scaled_width": {
"type": "number",
"description": "Scaled width"
},
"scaled_height": {
"type": "number",
"description": "Scaled height"
},
"original_width": {
"type": "number",
"description": "Original width"
},
"original_height": {
"type": "number",
"description": "Original height"
}
}
}
}
}
}
}
},
"method": "GET",
"example": {
"max_width": 1200,
"max_height": 800,
"scope_note": "Geometry-only fit calculation; not crop or quality advice.",
"scale_factor": 0.2667,
"original_width": 4000,
"original_height": 3000
},
"license": "Saylor calculation; limitations disclosed",
"mimeType": "application/json",
"freshness": "computed per request",
"tokenCount": null,
"description": "Calculate proportional media resize dimensions that fit inside a maximum width and height without upscaling, returning scale factor, dimensions, formula, and explicit crop and quality limitations.",
"inputSchema": {
"width": "required positive original width in pixels or units (query)",
"height": "required positive original height in pixels or units (query)",
"max_width": "required positive bounding width (query)",
"max_height": "required positive bounding height (query)"
},
"serviceName": "Saylor Innovations — Media Resize Fit Calculator",
"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": [
"original_width",
"original_height",
"max_width",
"max_height",
"scale_factor",
"scaled_width",
"scaled_height",
"formula",
"scope_note"
],
"properties": {
"formula": {
"type": "string"
},
"max_width": {
"type": "number"
},
"max_height": {
"type": "number"
},
"scope_note": {
"type": "string"
},
"scale_factor": {
"type": "number"
},
"scaled_width": {
"type": "number"
},
"scaled_height": {
"type": "number"
},
"original_width": {
"type": "number"
},
"original_height": {
"type": "number"
}
}
},
"noPathTemplate": true,
"settlementModes": [
"facilitator-transaction",
"self-submitted-reference"
],
"typicalLatencyMs": 10
},
"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
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"memo": "saylor:media:scale",
"name": "USD Coin",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"width": "4000",
"height": "3000",
"max_width": "1200",
"max_height": "800"
}
},
"output": {
"type": "json",
"example": {
"max_width": 1200,
"max_height": 800,
"scope_note": "Geometry-only fit calculation; not crop or quality advice.",
"scale_factor": 0.2667,
"original_width": 4000,
"original_height": 3000
}
}
},
"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",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"width",
"height",
"max_width",
"max_height"
],
"properties": {
"width": {
"type": "string",
"description": "required positive original width in pixels or units (query)"
},
"height": {
"type": "string",
"description": "required positive original height in pixels or units (query)"
},
"max_width": {
"type": "string",
"description": "required positive bounding width (query)"
},
"max_height": {
"type": "string",
"description": "required positive bounding height (query)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"original_width",
"original_height",
"max_width",
"max_height",
"scale_factor",
"scope_note"
],
"properties": {
"formula": {
"type": "string",
"description": "Formula used for the calculation"
},
"max_width": {
"type": "number",
"description": "Max width"
},
"max_height": {
"type": "number",
"description": "Max height"
},
"scope_note": {
"type": "string",
"description": "What this data covers and what it leaves out"
},
"scale_factor": {
"type": "number",
"description": "Scale factor"
},
"scaled_width": {
"type": "number",
"description": "Scaled width"
},
"scaled_height": {
"type": "number",
"description": "Scaled height"
},
"original_width": {
"type": "number",
"description": "Original width"
},
"original_height": {
"type": "number",
"description": "Original height"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-15 18:19Z
- Last indexed by Roundhouse
- 2026-10-26 13:46Z
- Last enriched (probe, favicon, geo)
- 2026-10-14 14:46Z
- x402 version
- 2
- 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. 31 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Saylor Innovations Media Resize 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=Saylor%20Innovations%20%20Media%20Resize' 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/media/scale, 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.