yield.trdefi.com
TRDEFI prepare request
TradingLiveeip155:8453Exactvia cdp
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$0.26
Verified settled volume
13 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
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 2026-10-12 00:46Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x4C96dA02d7120BFb81594d0e924B237e0c74660dThe 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",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x4C96dA02d7120BFb81594d0e924B237e0c74660d",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://yield.trdefi.com/v1/swaps",
"description": "TRDEFI prepare request",
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0x4C96dA02d7120BFb81594d0e924B237e0c74660d",
"amount": "20000",
"scheme": "exact",
"network": "eip155:5042",
"mimeType": "application/json",
"resource": "https://yield.trdefi.com/v1/swaps",
"description": "TRDEFI prepare request",
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 3600
}
],
"resource": {
"url": "https://yield.trdefi.com/v1/swaps",
"mimeType": "application/json",
"description": "TRDEFI prepare request"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"type": "object",
"required": [
"strategyHash",
"chain",
"amount",
"wallet"
],
"properties": {
"chain": {
"type": "string",
"description": "Network the position is on, e.g. \"base\"."
},
"amount": {
"type": "string",
"description": "Input amount in token base units, as an integer string, e.g. \"1000000\" for 1 USDC."
},
"wallet": {
"type": "string",
"description": "Your own EVM address that will sign the swap."
},
"direction": {
"enum": [
"aToB",
"bToA"
],
"type": "string",
"description": "Which way round the pair to swap."
},
"strategyHash": {
"type": "string",
"description": "32-byte strategy hash of the position to swap against."
}
}
},
"type": "http",
"method": "POST"
},
"output": {
"type": "object",
"example": {
"note": "Sign with your own wallet. TRDEFI cannot sign or broadcast this.",
"chain": "base",
"amountOut": "999000",
"transactions": [
{
"to": "0x111111338c5091e8440b67b168bae16a668ac0de",
"data": "0x...",
"value": "0"
}
]
},
"description": "One unsigned transaction that performs the swap."
}
},
"tags": [
"stablecoin swap",
"usdc usdt swap",
"non-custodial swap",
"defi swap",
"prepare transaction",
"on-chain settlement",
"liquidity"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"type": "object",
"properties": {
"body": {
"type": "object",
"required": [
"strategyHash",
"chain",
"amount",
"wallet"
],
"properties": {
"chain": {
"type": "string",
"description": "Network the position is on, e.g. \"base\"."
},
"amount": {
"type": "string",
"description": "Input amount in token base units, as an integer string, e.g. \"1000000\" for 1 USDC."
},
"wallet": {
"type": "string",
"description": "Your own EVM address that will sign the swap."
},
"direction": {
"enum": [
"aToB",
"bToA"
],
"type": "string",
"description": "Which way round the pair to swap."
},
"strategyHash": {
"type": "string",
"description": "32-byte strategy hash of the position to swap against."
}
}
},
"type": {
"const": "http"
},
"method": {
"const": "POST"
}
}
},
"output": {
"type": "object",
"example": {
"note": "Sign with your own wallet. TRDEFI cannot sign or broadcast this.",
"chain": "base",
"amountOut": "999000",
"transactions": [
{
"to": "0x111111338c5091e8440b67b168bae16a668ac0de",
"data": "0x...",
"value": "0"
}
]
},
"description": "One unsigned transaction that performs the swap."
}
}
},
"description": "Swap stablecoins against a live non-custodial liquidity position and receive the result on-chain. Give a strategy hash and an input amount; get back an unsigned transaction that settles the swap against that maker position. Use this when an agent needs to move USDC/USDT and prefers a real on-chain counterparty to a custodial venue: the swap is simulated first, and if it cannot succeed no transaction is returned at all, so a wallet is never handed one that is certain to revert.",
"serviceName": "TRDEFI prepare swap"
}
},
"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.
0.02USDC≈ $0.02 USD
on Base · exact scheme
Pay 0.02 USDC on Base to 0x4C96…4660d. The signed payment is good for 1 hour.
- Paid to
- 0x4C96…4660d
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 hour
- As published
- 20000 smallest units
- Buys
- TRDEFI prepare request
- Returns
- application/json
20000units
on eip155:5042 · 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
- 0x4C96…4660d
- Token contract
- 0x3600…00000
- Payment window
- 1 hour
- Buys
- TRDEFI prepare request
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x4C96dA02d7120BFb81594d0e924B237e0c74660d",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://yield.trdefi.com/v1/swaps",
"description": "TRDEFI prepare request",
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 3600
},
{
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0x4C96dA02d7120BFb81594d0e924B237e0c74660d",
"amount": "20000",
"scheme": "exact",
"network": "eip155:5042",
"mimeType": "application/json",
"resource": "https://yield.trdefi.com/v1/swaps",
"description": "TRDEFI prepare request",
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 3600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"type": "object",
"example": {
"chain": "base",
"amount": "1000000",
"wallet": "0x0000000000000000000000000000000000000000",
"direction": "aToB",
"strategyHash": "0x5928c6b6c24c08615ddde8b832e6f4b135550601e2bb903dba4123c1b8ff8f2c"
},
"required": [
"strategyHash",
"chain",
"amount",
"wallet"
],
"properties": {
"chain": {
"enum": [
"ethereum",
"base",
"arbitrum",
"optimism",
"polygon",
"arc"
],
"type": "string",
"description": "REQUIRED. Network the position is on. Note this list differs from /v1/positions, which ships on `base`, `arc` and `baseSepolia` only."
},
"amount": {
"type": "string",
"description": "REQUIRED. Input amount in token base units, as an integer string, e.g. \"1000000\" for 1 USDC. Must be greater than zero."
},
"wallet": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "REQUIRED. Your own EVM address that will sign the swap."
},
"tokenIn": {
"type": "string",
"description": "Optional. Token you are selling, as a symbol or address. Use it to disambiguate the direction."
},
"tokenOut": {
"type": "string",
"description": "Optional. Token you are buying, as a symbol or address. Use it to disambiguate the direction."
},
"direction": {
"enum": [
"aToB",
"bToA"
],
"type": "string",
"description": "Which way round the pair to swap. Omit to let the route infer it from `tokenIn`/`tokenOut`."
},
"strategyHash": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{64}$",
"description": "REQUIRED. 32-byte strategy hash of the position to swap against."
}
}
},
"type": "http",
"method": "POST"
},
"output": {
"type": "object",
"example": {
"note": "Sign with your own wallet. TRDEFI cannot sign or broadcast this.",
"chain": "base",
"amountOut": "999000",
"transactions": [
{
"to": "0x111111338c5091e8440b67b168bae16a668ac0de",
"data": "0x...",
"value": "0"
}
]
},
"description": "One unsigned transaction that performs the swap."
}
},
"tags": [
"stablecoin swap",
"usdc usdt swap",
"non-custodial swap",
"defi swap",
"prepare transaction",
"on-chain settlement",
"liquidity"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"type": "object",
"properties": {
"body": {
"type": "object",
"example": {
"chain": "base",
"amount": "1000000",
"wallet": "0x0000000000000000000000000000000000000000",
"direction": "aToB",
"strategyHash": "0x5928c6b6c24c08615ddde8b832e6f4b135550601e2bb903dba4123c1b8ff8f2c"
},
"required": [
"strategyHash",
"chain",
"amount",
"wallet"
],
"properties": {
"chain": {
"enum": [
"ethereum",
"base",
"arbitrum",
"optimism",
"polygon",
"arc"
],
"type": "string",
"description": "REQUIRED. Network the position is on. Note this list differs from /v1/positions, which ships on `base`, `arc` and `baseSepolia` only."
},
"amount": {
"type": "string",
"description": "REQUIRED. Input amount in token base units, as an integer string, e.g. \"1000000\" for 1 USDC. Must be greater than zero."
},
"wallet": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$",
"description": "REQUIRED. Your own EVM address that will sign the swap."
},
"tokenIn": {
"type": "string",
"description": "Optional. Token you are selling, as a symbol or address. Use it to disambiguate the direction."
},
"tokenOut": {
"type": "string",
"description": "Optional. Token you are buying, as a symbol or address. Use it to disambiguate the direction."
},
"direction": {
"enum": [
"aToB",
"bToA"
],
"type": "string",
"description": "Which way round the pair to swap. Omit to let the route infer it from `tokenIn`/`tokenOut`."
},
"strategyHash": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{64}$",
"description": "REQUIRED. 32-byte strategy hash of the position to swap against."
}
}
},
"type": {
"const": "http"
},
"method": {
"const": "POST"
}
}
},
"output": {
"type": "object",
"example": {
"note": "Sign with your own wallet. TRDEFI cannot sign or broadcast this.",
"chain": "base",
"amountOut": "999000",
"transactions": [
{
"to": "0x111111338c5091e8440b67b168bae16a668ac0de",
"data": "0x...",
"value": "0"
}
]
},
"description": "One unsigned transaction that performs the swap."
}
}
},
"description": "Swap stablecoins against a live non-custodial liquidity position and receive the result on-chain. Give a strategy hash and an input amount; get back an unsigned transaction that settles the swap against that maker position. Use this when an agent needs to move USDC/USDT and prefers a real on-chain counterparty to a custodial venue: the swap is simulated first, and if it cannot succeed no transaction is returned at all, so a wallet is never handed one that is certain to revert.",
"serviceName": "TRDEFI prepare swap"
}
}Provenance
- Seen in the source catalog
- 2026-10-12 00:46Z
- Last indexed by Roundhouse
- 2026-10-26 22:20Z
- Last enriched (probe, favicon, geo)
- 2026-10-02 17:15Z
- x402 version
- 2
- Max timeout
- 3600s
- 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. 30 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 yield.trdefi.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=yield.trdefi.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://yield.trdefi.com/v1/swaps, 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.