Cooking Calculators
Brine math: salt grams for a target strength, or the strength of a brine, with table and kosher salt spoon amounts.
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.
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"asOf": "2026-10-11T14:26:08.214Z",
"saltG": 52.6316,
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"Common ranges: pasta water 1 to 2%, vegetable and sauerkraut ferments 2 to 3%, wet poultry or pork brines 5 to 8%, seawater about 3.5%, dry brine 0.75 to 1.5% of the meat's weight."
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"summary": "52.63 g salt in 1000 g water is a 5% solution (5.263% of the water's weight); total 1052.6 g. About 2.92 tbsp table salt, 3.65 tbsp Morton kosher or 6.27 tbsp Diamond Crystal.",
"verdict": "SALT_AMOUNT_COMPUTED",
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"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
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"Common ranges: pasta water 1 to 2%, vegetable and sauerkraut ferments 2 to 3%, wet poultry or pork brines 5 to 8%, seawater about 3.5%, dry brine 0.75 to 1.5% of the meat's weight."
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"summary": "52.63 g salt in 1000 g water is a 5% solution (5.263% of the water's weight); total 1052.6 g. About 2.92 tbsp table salt, 3.65 tbsp Morton kosher or 6.27 tbsp Diamond Crystal.",
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"Common ranges: pasta water 1 to 2%, vegetable and sauerkraut ferments 2 to 3%, wet poultry or pork brines 5 to 8%, seawater about 3.5%, dry brine 0.75 to 1.5% of the meat's weight."
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"verdict": "SALT_AMOUNT_COMPUTED",
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"food safety of curing: nitrite curing, botulism risk and safe times are not covered (use tested curing recipes)",
"salt that sticks to or is absorbed by the food: the brine weakens as it brines",
"…2 more"
],
"percentOfWater": 5.2632,
"totalSolutionG": 1052.63,
"spoonEquivalents": {
"table salt": {
"teaspoons": 8.77,
"tablespoons": 2.92
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"morton kosher": {
"teaspoons": 11,
"tablespoons": 3.65
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"diamond crystal kosher": {
"teaspoons": 18.8,
"tablespoons": 6.27
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"message": "Cooking Calculators has 12 pay-per-call endpoints (Kitchen math for agents: recipe scaling, safe temperatures, ovens, baker's percentages, yeast, eggs, pans, brine, ABV and coffee.), from $0.02 a call. See the full menu and send your agents our way.",
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"url": "https://cooking-calc.x402tookit.com/coffee-brew",
"path": "/coffee-brew",
"what": "Coffee grams for your water (or water for your grams) by method: drip, pour-over, press,…",
"price": "$0.02"
},
{
"url": "https://cooking-calc.x402tookit.com/egg-sizes",
"path": "/egg-sizes",
"what": "USDA egg sizes: weight per egg, and how many eggs of one size equal a recipe's count in a…",
"price": "$0.02"
},
{
"url": "https://cooking-calc.x402tookit.com/oven-temperature",
"path": "/oven-temperature",
"what": "Convert oven temperatures between Celsius, Fahrenheit and gas marks, with the fan-oven se…",
"price": "$0.02"
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}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 0.02 USDC on Base to 0xb531…2DBDa. The signed payment is good for 5 minutes.
- Paid to
- 0xb531…2DBDa
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 20000 smallest units
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
- DUPiup…eEm8s
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
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
- 0xb531…2DBDa
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
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
- 0xb531…2DBDa
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
The catalog’s raw entry
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"asOf": "2026-10-11T14:26:08.214Z",
"saltG": 52.6316,
"source": "computed locally",
"waterG": 1000,
"reasons": [
"Percent of solution = salt / (salt + water). Percent of water = salt / water. Recipes differ on which they mean, so check.",
"Common ranges: pasta water 1 to 2%, vegetable and sauerkraut ferments 2 to 3%, wet poultry or pork brines 5 to 8%, seawater about 3.5%, dry brine 0.75 to 1.5% of the meat's weight."
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"summary": "52.63 g salt in 1000 g water is a 5% solution (5.263% of the water's weight); total 1052.6 g. About 2.92 tbsp table salt, 3.65 tbsp Morton kosher or 6.27 tbsp Diamond Crystal.",
"verdict": "SALT_AMOUNT_COMPUTED",
"degraded": false,
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"…2 more"
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"tablespoons": 2.92
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"tablespoons": 3.65
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"teaspoons": 18.8,
"tablespoons": 6.27
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}Provenance
- Seen in the source catalog
- 2026-10-20 20:59Z
- Last indexed by Roundhouse
- 2026-10-22 12:40Z
- Last enriched (probe, favicon, geo)
- 2026-10-20 22:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
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GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 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 Cooking Calculators 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=Cooking%20Calculators' 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://cooking-calc.x402tookit.com/brine-salt, 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.