Saylor Innovations Watchdog API
Token price in USD plus liquidity on any chain - Solana, Ethereum, Base, BNB, Tron, Sui, TON and 30+ more - with a second price source on Solana
TradingLiveeip155:8453Exactvia cdp
MultichainSolanaEvmOnchainToken-data
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 7 snapshots so far.
$14.15
Verified settled volume
1,496 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-21 00:11Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aaThe 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.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.01USDC≈ $0.01 USD
on Base · exact scheme
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
10000units
on Polygon · 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
- 0xA2A8…fc8aa
- Token contract
- 0x3c49…c3359
- Payment window
- 2 minutes
10000units
on Arbitrum · 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
- 0xA2A8…fc8aa
- Token contract
- 0xaf88…e5831
- Payment window
- 2 minutes
10000units
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
- 7LSjfr…Xacy7
- Token contract
- EPjFWd…TDt1v
- Payment window
- 2 minutes
10000units
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
- 7LSjfr…Xacy7
- Token contract
- Es9vMF…nwNYB
- Payment window
- 2 minutes
91164units
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
- 7LSjfr…Xacy7
- Token contract
- So1111…11112
- Payment window
- 2 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"memo": "saylor:watchdog:price:DezXAZ8z7P",
"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:watchdog:price:DezXAZ8z7P",
"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:watchdog:price:DezXAZ8z7P",
"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:watchdog:price:DezXAZ8z7P",
"session": "eyJhcnRpY2xlSWQiOiJ3YXRjaGRvZzpwcmljZTpEZXpYQVo4ejdQbnJuUkpqejN3WEJvUmdpeENhNnhqbkI3WWFCMXBQQjI2MyIsInJlZmVyZW5jZSI6IjhHZHpxNlp4OUtSaUxHZnM1aXBpTGpxaE5zeTVrTWRRRXE5RXB5aHFnbzlNIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI1NDE2MTUzODJ9.yFlhWC2JbFaZWOBoHWWjOsslYL07bHpJZJn6tUKV8lI",
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"reference": "8Gdzq6Zx9KRiLGfs5ipiLjqhNsy5kMdQEq9Epyhqgo9M"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"memo": "saylor:watchdog:price:DezXAZ8z7P",
"session": "eyJhcnRpY2xlSWQiOiJ3YXRjaGRvZzpwcmljZTpEZXpYQVo4ejdQbnJuUkpqejN3WEJvUmdpeENhNnhqbkI3WWFCMXBQQjI2MyIsInJlZmVyZW5jZSI6IkM1elNBaFJjQWRNcGUzcFA0RjlFR2dySnhoZVA4ekxMMWV5WXA2cVdFTTY3IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI1NDE2MTUzODJ9.T5zs3aX-Mr1f54xInsTWGwyU_yk98VWTO72E4MLY_K4",
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"reference": "C5zSAhRcAdMpe3pP4F9EGgrJxheP8zLL1eyYp6qWEM67"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:watchdog:price:DezXAZ8z7P",
"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": "eyJhcnRpY2xlSWQiOiJ3YXRjaGRvZzpwcmljZTpEZXpYQVo4ejdQbnJuUkpqejN3WEJvUmdpeENhNnhqbkI3WWFCMXBQQjI2MyIsInJlZmVyZW5jZSI6IkFLaWttbjZOV3htZWFKTktmclBYTkpHeTdKb1hpWE0zRzh6ekVXQnJvTHVXIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkxMTY0LCJleHAiOjE3OTI1NDE2MTUzODJ9.EFkkQTboSnqmBkS-eShBa7yFWeYYv8a6osQIjJZ4xd8",
"reference": "AKikmn6NWxmeaJNKfrPXNJGy7JoXiXM3G8zzEWBroLuW",
"solUsdPrice": 106.4,
"quotedLamports": "93984"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "91164",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"solana_address": "Solana wallet address (base58-encoded public key, 43–44 characters)"
}
},
"output": {
"type": "json",
"example": {
"mint": "DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263",
"name": "Bonk",
"symbol": "Bonk",
"top_pair": {
"dex": "raydium",
"pair_address": "3UwfrdLTpAjxTRni1boc5HUWe6hzc4HgE5yLdvEp2Noc"
},
"price_usd": 0.000002932,
"fetched_at": 1787934775.45,
"pair_count": 30,
"sources_ok": [
"dexscreener",
"jupiter"
],
"liquidity_usd": 709551.36,
"price_jupiter": 0.0000029405,
"sources_failed": [],
"volume_24h_usd": 245047.96,
"price_change_24h": -7.82,
"price_spread_pct": 0.29,
"price_dexscreener": 0.000002932
}
}
},
"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"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"properties": {
"mint": {
"type": [
"string",
"null"
],
"description": "Solana token mint address"
},
"name": {
"type": [
"string",
"null"
],
"description": "Name"
},
"chain": {
"type": [
"string",
"null"
],
"description": "Chain the address was resolved to, for example solana, base, bsc, tron or sui."
},
"symbol": {
"type": [
"string",
"null"
],
"description": "Ticker or asset symbol"
},
"top_pair": {
"type": [
"object",
"null"
],
"description": "Top pair"
},
"price_usd": {
"type": [
"number",
"null"
],
"description": "Best available price."
},
"chain_name": {
"type": [
"string",
"null"
],
"description": "Chain name"
},
"fetched_at": {
"type": [
"number",
"null"
],
"description": "Unix seconds."
},
"pair_count": {
"type": [
"number",
"null"
],
"description": "Number of pair"
},
"sources_ok": {
"type": "array",
"items": {
"type": "string"
},
"description": "Data sources that answered"
},
"liquidity_usd": {
"type": [
"number",
"null"
],
"description": "Liquidity in US dollars"
},
"price_jupiter": {
"type": [
"number",
"null"
],
"description": "Price jupiter"
},
"sources_failed": {
"type": "array",
"items": {
"type": "string"
},
"description": "Data sources that did not answer; empty when all answered"
},
"volume_24h_usd": {
"type": [
"number",
"null"
],
"description": "Trading volume over the last 24 hours in US dollars"
},
"price_change_24h": {
"type": [
"number",
"null"
],
"description": "Price change over 24 hours, percent"
},
"price_spread_pct": {
"type": [
"number",
"null"
],
"description": "Disagreement between the two sources — a wide spread is itself a signal."
},
"price_dexscreener": {
"type": [
"number",
"null"
],
"description": "Price dexscreener"
}
}
}
}
}
}
},
"routeTemplate": "/api/price/:solana_address"
}
}Provenance
- Seen in the source catalog
- 2026-10-21 00:11Z
- Last indexed by Roundhouse
- 2026-10-25 07:20Z
- Last enriched (probe, favicon, geo)
- 2026-10-21 00:45Z
- x402 version
- 2
- Max timeout
- 120s
- Liveness probe
- HTTP 400
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. 7 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 Watchdog API 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%20Watchdog%20API' 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/price/:solana_address, 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.