Saylor Innovations Data Desk
Uniswap V2-style pair reader for 16 EVM chains: both tokens with symbols, reserves, implied spot price both ways, LP supply and last update.
TradingLiveeip155:8453Exactvia cdp
Uniswap v2 pair reservesPool reserves and priceAmm pair infoLp token supplyToken pair spot price
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 6 snapshots so far.
$15.76
Verified settled volume
1,657 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.
2
Unique payers · 30d
Last called 2026-10-23 02:11Z
—
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.
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:chain-uniswap-v2",
"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:chain-uniswap-v2",
"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:chain-uniswap-v2",
"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:chain-uniswap-v2",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi11bmlzd2FwLXYyLXBhaXIiLCJyZWZlcmVuY2UiOiI2WFdIS3gxUE5XcmU0cjJKQzFleUZ5Rm9MeTZ0V1kyV1lNcHJqOWFGUEVyNiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNTU4MDYxNTg5fQ.nVbpgqTaUAhSjyR-LrvSK2m4GOZQ_-pde_B480sWFFs",
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"reference": "6XWHKx1PNWre4r2JC1eyFyFoLy6tWY2WYMprj9aFPEr6"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"memo": "saylor:datadesk:chain-uniswap-v2",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi11bmlzd2FwLXYyLXBhaXIiLCJyZWZlcmVuY2UiOiI3d0ZWQ0N2bTE0ZWZacVJEc1pIMTFIYmhZZXAyV3dwTXZQb2RLR2FkdnB1TCIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNTU4MDYxNTg5fQ.Rb6r1HtipjKtI66ePBLEES7DkjtOp26VwEvFbLFwNaw",
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"reference": "7wFVCCvm14efZqRDsZH11HbhYep2WwpMvPodKGadvpuL"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:chain-uniswap-v2",
"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": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi11bmlzd2FwLXYyLXBhaXIiLCJyZWZlcmVuY2UiOiJEelZoSGV2M2FTcVV6MmdlM0xNTDMzNkptQ2Z1cUQyVUVmN2l1Y2RRTlZnUCIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5MTgxMiwiZXhwIjoxNzkyNTU4MDYxNTg5fQ.nEUL54zOENnpz-hsatzktOs6aGUWOfSZAbb5a4lZi4c",
"reference": "DzVhHev3aSqUz2ge3LML336JmCfuqD2UEf7iucdQNVgP",
"solUsdPrice": 105.65,
"quotedLamports": "94652"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "91812",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://saylorinnovations.com/api/chain/uniswap-v2-pair?chain=ethereum&pair=0xB4e16d0168e52d35CaCD2c6185b44281Ec28C9Dc",
"tags": [
"uniswap v2 pair reserves",
"pool reserves and price",
"amm pair info",
"lp token supply",
"token pair spot price"
],
"iconUrl": "https://saylorinnovations.com/og-image.jpg",
"mimeType": "application/json",
"description": "Uniswap V2-style pair reader for 16 EVM chains: both tokens with symbols, reserves, implied spot price both ways, LP supply and last update.",
"serviceName": "Saylor Innovations Data Desk"
},
"extensions": {
"tags": [
"uniswap v2 pair reserves",
"pool reserves and price",
"amm pair info",
"lp token supply",
"token pair spot price"
],
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"pair": "0xB4e16d0168e52d35CaCD2c6185b44281Ec28C9Dc",
"chain": "ethereum"
}
},
"output": {
"type": "json",
"example": {
"note": "Spot price implied by the pool reserves at the latest block; it ignores fees and slippage and can be moved by a large trade.",
"pair": "0xB4e16d0168e52d35CaCD2c6185b44281Ec28C9Dc",
"chain": "ethereum",
"source": "Chain JSON-RPC (ethereum)",
"token0": {
"symbol": "USDC",
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"decimals": 6
},
"token1": {
"symbol": "WETH",
"address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
"decimals": 18
},
"factory": "0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f",
"chain_id": 1,
"reserve0": "10012950.019816",
"reserve1": "4084.076423839252757382",
"last_update": "2026-10-21T02:27:11.000Z",
"lp_total_supply": "0.070825463771185909",
"price_token0_per_token1": 2451.70486070466,
"price_token1_per_token0": 0.0004078794377038449
}
}
},
"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",
"required": [
"chain",
"pair"
],
"properties": {
"pair": {
"type": "string",
"description": "the V2-style liquidity pair contract address"
},
"chain": {
"type": "string",
"description": "chain name (ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, mantle, blast, sonic, celo, berachain, unichain) or chain id"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"chain",
"chain_id",
"pair",
"token0",
"token1",
"reserve0",
"reserve1",
"note",
"source"
],
"properties": {
"note": {
"type": "string",
"description": "plain-language reading of the result"
},
"pair": {
"type": "string",
"description": "the pair contract"
},
"chain": {
"type": "string",
"description": "the chain name that was queried"
},
"source": {
"type": "string",
"description": "where the data was read from or how it was computed"
},
"token0": {
"type": [
"object",
"null"
],
"properties": {
"symbol": {
"type": [
"string",
"null"
],
"description": "token symbol"
},
"address": {
"type": [
"string",
"null"
],
"description": "token contract"
},
"decimals": {
"type": [
"number",
"null"
],
"description": "token decimals"
}
},
"description": "first token with address, symbol and decimals"
},
"token1": {
"type": [
"object",
"null"
],
"properties": {
"symbol": {
"type": [
"string",
"null"
],
"description": "token symbol"
},
"address": {
"type": [
"string",
"null"
],
"description": "token contract"
},
"decimals": {
"type": [
"number",
"null"
],
"description": "token decimals"
}
},
"description": "second token with address, symbol and decimals"
},
"factory": {
"type": [
"string",
"null"
],
"description": "factory that created the pair"
},
"chain_id": {
"type": "number",
"description": "EIP-155 chain id of that network"
},
"reserve0": {
"type": "string",
"description": "token0 reserve in token units"
},
"reserve1": {
"type": "string",
"description": "token1 reserve in token units"
},
"last_update": {
"type": [
"string",
"null"
],
"description": "time of the last reserve update"
},
"lp_total_supply": {
"type": [
"string",
"null"
],
"description": "LP tokens outstanding"
},
"price_token0_per_token1": {
"type": [
"number",
"null"
],
"description": "spot price: token0 per one token1"
},
"price_token1_per_token0": {
"type": [
"number",
"null"
],
"description": "spot price: token1 per one token0"
}
}
}
}
}
}
}
},
"method": "GET",
"example": {
"note": "Spot price implied by the pool reserves at the latest block; it ignores fees and slippage and can be moved by a large trade.",
"pair": "0xB4e16d0168e52d35CaCD2c6185b44281Ec28C9Dc",
"chain": "ethereum",
"source": "Chain JSON-RPC (ethereum)",
"token0": {
"symbol": "USDC",
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"decimals": 6
},
"token1": {
"symbol": "WETH",
"address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
"decimals": 18
},
"factory": "0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f",
"chain_id": 1,
"reserve0": "10012950.019816",
"reserve1": "4084.076423839252757382",
"last_update": "2026-10-21T02:27:11.000Z",
"lp_total_supply": "0.070825463771185909",
"price_token0_per_token1": 2451.70486070466,
"price_token1_per_token0": 0.0004078794377038449
},
"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": {
"pair": "the V2-style liquidity pair contract address",
"chain": "chain name (ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, mantle, blast, sonic, celo, berachain, unichain) or chain id"
},
"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": [
"chain",
"chain_id",
"pair",
"token0",
"token1",
"reserve0",
"reserve1",
"note",
"source"
],
"properties": {
"note": {
"type": "string",
"description": "plain-language reading of the result"
},
"pair": {
"type": "string",
"description": "the pair contract"
},
"chain": {
"type": "string",
"description": "the chain name that was queried"
},
"source": {
"type": "string",
"description": "where the data was read from or how it was computed"
},
"token0": {
"type": [
"object",
"null"
],
"properties": {
"symbol": {
"type": [
"string",
"null"
],
"description": "token symbol"
},
"address": {
"type": [
"string",
"null"
],
"description": "token contract"
},
"decimals": {
"type": [
"number",
"null"
],
"description": "token decimals"
}
},
"description": "first token with address, symbol and decimals"
},
"token1": {
"type": [
"object",
"null"
],
"properties": {
"symbol": {
"type": [
"string",
"null"
],
"description": "token symbol"
},
"address": {
"type": [
"string",
"null"
],
"description": "token contract"
},
"decimals": {
"type": [
"number",
"null"
],
"description": "token decimals"
}
},
"description": "second token with address, symbol and decimals"
},
"factory": {
"type": [
"string",
"null"
],
"description": "factory that created the pair"
},
"chain_id": {
"type": "number",
"description": "EIP-155 chain id of that network"
},
"reserve0": {
"type": "string",
"description": "token0 reserve in token units"
},
"reserve1": {
"type": "string",
"description": "token1 reserve in token units"
},
"last_update": {
"type": [
"string",
"null"
],
"description": "time of the last reserve update"
},
"lp_total_supply": {
"type": [
"string",
"null"
],
"description": "LP tokens outstanding"
},
"price_token0_per_token1": {
"type": [
"number",
"null"
],
"description": "spot price: token0 per one token1"
},
"price_token1_per_token0": {
"type": [
"number",
"null"
],
"description": "spot price: token1 per one token0"
}
}
},
"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.
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
93358units
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:datadesk:chain-uniswap-v2",
"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:chain-uniswap-v2",
"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:chain-uniswap-v2",
"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:chain-uniswap-v2",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi11bmlzd2FwLXYyLXBhaXIiLCJyZWZlcmVuY2UiOiJBa2RTQmF5dzRTem9QWVd1cG45WXBqdDIyQ0xBczNtc0V1TFVGTTJpdmZUQiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNzIxNjI2ODg5fQ.R6_w9YvXz6UOlQq8u7Ab-cvN0tQWir-0BKNdtBcfjgs",
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"reference": "AkdSBayw4SzoPYWupn9Ypjt22CLAs3msEuLUFM2ivfTB"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"memo": "saylor:datadesk:chain-uniswap-v2",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi11bmlzd2FwLXYyLXBhaXIiLCJyZWZlcmVuY2UiOiJFemZxRzNKbWFid0xOcnFTbjQzUDdEODdqY2tyQlJxdnJtcjN3VUY1cFdBYiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNzIxNjI2ODg5fQ.dHZUZoJfCZQ6sUFTK6Y0LyvkXnDeofpxX3r5DipVOFY",
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"reference": "EzfqG3JmabwLNrqSn43P7D87jckrBRqvrmr3wUF5pWAb"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:chain-uniswap-v2",
"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": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi11bmlzd2FwLXYyLXBhaXIiLCJyZWZlcmVuY2UiOiIyUzZ3bnBBdmhHUXdHUWI1WTRoekRTbTgzNHlmSlVuUjdtUEpvMlBCZGpjOSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5MzM1OCwiZXhwIjoxNzkyNzIxNjI2OTE1fQ.2ZkNHhLiX2eFIeMSSXokGwoROKLFsFS9plaVqbFBS40",
"reference": "2S6wnpAvhGQwGQb5Y4hzDSm834yfJUnR7mPJo2PBdjc9",
"solUsdPrice": 103.9,
"quotedLamports": "96246"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "93358",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"pair": "0xB4e16d0168e52d35CaCD2c6185b44281Ec28C9Dc",
"chain": "ethereum"
}
},
"output": {
"type": "json",
"example": {
"note": "Spot price implied by the pool reserves at the latest block; it ignores fees and slippage and can be moved by a large trade.",
"pair": "0xB4e16d0168e52d35CaCD2c6185b44281Ec28C9Dc",
"chain": "ethereum",
"source": "Chain JSON-RPC (ethereum)",
"token0": {
"symbol": "USDC",
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"decimals": 6
},
"token1": {
"symbol": "WETH",
"address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
"decimals": 18
},
"factory": "0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f",
"chain_id": 1,
"reserve0": "10012950.019816",
"reserve1": "4084.076423839252757382",
"last_update": "2026-10-21T02:27:11.000Z",
"lp_total_supply": "0.070825463771185909",
"price_token0_per_token1": 2451.70486070466,
"price_token1_per_token0": 0.0004078794377038449
}
}
},
"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",
"required": [
"chain",
"pair"
],
"properties": {
"pair": {
"type": "string",
"description": "the V2-style liquidity pair contract address"
},
"chain": {
"type": "string",
"description": "chain name (ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, mantle, blast, sonic, celo, berachain, unichain) or chain id"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"chain",
"chain_id",
"pair",
"token0",
"token1",
"reserve0",
"reserve1",
"note",
"source"
],
"properties": {
"note": {
"type": "string",
"description": "plain-language reading of the result"
},
"pair": {
"type": "string",
"description": "the pair contract"
},
"chain": {
"type": "string",
"description": "the chain name that was queried"
},
"source": {
"type": "string",
"description": "where the data was read from or how it was computed"
},
"token0": {
"type": [
"object",
"null"
],
"properties": {
"symbol": {
"type": [
"string",
"null"
],
"description": "token symbol"
},
"address": {
"type": [
"string",
"null"
],
"description": "token contract"
},
"decimals": {
"type": [
"number",
"null"
],
"description": "token decimals"
}
},
"description": "first token with address, symbol and decimals"
},
"token1": {
"type": [
"object",
"null"
],
"properties": {
"symbol": {
"type": [
"string",
"null"
],
"description": "token symbol"
},
"address": {
"type": [
"string",
"null"
],
"description": "token contract"
},
"decimals": {
"type": [
"number",
"null"
],
"description": "token decimals"
}
},
"description": "second token with address, symbol and decimals"
},
"factory": {
"type": [
"string",
"null"
],
"description": "factory that created the pair"
},
"chain_id": {
"type": "number",
"description": "EIP-155 chain id of that network"
},
"reserve0": {
"type": "string",
"description": "token0 reserve in token units"
},
"reserve1": {
"type": "string",
"description": "token1 reserve in token units"
},
"last_update": {
"type": [
"string",
"null"
],
"description": "time of the last reserve update"
},
"lp_total_supply": {
"type": [
"string",
"null"
],
"description": "LP tokens outstanding"
},
"price_token0_per_token1": {
"type": [
"number",
"null"
],
"description": "spot price: token0 per one token1"
},
"price_token1_per_token0": {
"type": [
"number",
"null"
],
"description": "spot price: token1 per one token0"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-23 02:11Z
- Last indexed by Roundhouse
- 2026-10-26 17:40Z
- Last enriched (probe, favicon, geo)
- 2026-10-21 04:45Z
- 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. 6 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 Data Desk 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%20Data%20Desk' 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/chain/uniswap-v2-pair, 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.