Old2New Agent API
payment-ready until 2026-10-15
Recipe transformation and recipe-photo generation API for dietary restrictions and health goals.
Call it x402 v2
x402 v2
- Base URL
- https://old2new.app
- Payment
- x402 v2, header channel
$ curl -i -X POST 'https://old2new.app/api/agent/transform' An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.
Endpoints 2 paid routes on old2new.app
Prices as captured in the 402 response: median $0.175 across the 2 endpoints.
Example 402 response
Endpoints and prices
| Method | Path | Description | Price | Network | Asset | 402 channel | Captured |
|---|---|---|---|---|---|---|---|
| POST | / | No description | $0.10 | Base | USDC | header | since 08-24 |
| POST | / | No description | $0.25 | Base | USDC | header | since 08-24 |
Payment evidence
402 payload captured at . Check evidence JSON · Measurement methodology.
First of 2 payloads captured by the monitor.
211 lines, scroll inside
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2D6503F39026E53FEBadbDf54B4F56150b4f1aEE",
"amount": "250000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://old2new.app/api/agent/transform-image",
"tags": [
"recipes",
"food",
"nutrition",
"dietary-restrictions",
"ai"
],
"iconUrl": "https://old2new.app/icon-192.png",
"mimeType": "application/json",
"description": "Transform a recipe for dietary restrictions and health goals, then generate a food photo of the result.",
"serviceName": "Old2New Agent API"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"diets": [
"vegan"
],
"recipe": "Classic Beef Lasagna: 1 lb ground beef, 1 jar marinara sauce, 12 lasagna noodles, 16 oz ricotta cheese, 2 cups shredded mozzarella, 1 egg, 1/2 cup parmesan, salt and pepper to taste. Brown the beef, layer noodles with sauces and cheeses, bake at 375F for 45 minutes.",
"healthGoal": "Lower saturated fat",
"restrictions": {
"vegan": true,
"dairyFree": true
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"image": {
"imageUrl": "https://hjtwpyauadgfhdurbmdr.supabase.co/storage/v1/object/public/recipe-images/example.png",
"imageModel": "gpt-image-1"
},
"model": "claude-sonnet-4-6",
"result": {
"shoppingList": {
"dairy": [],
"other": [
"cashew ricotta"
],
"pantry": [
"marinara sauce",
"lasagna noodles"
],
"produce": [
"onion",
"garlic"
],
"protein": [
"green lentils"
]
},
"transformedRecipe": {
"name": "Lentil Lasagna",
"ingredients": [
{
"item": "cooked green lentils",
"note": "swapped for ground beef",
"amount": "2 cups"
}
],
"instructions": [
"Brown the lentils with onion and garlic.",
"Layer noodles with sauce and cashew ricotta.",
"Bake at 375F for 45 minutes."
]
}
},
"requestId": "5b1e3e0a-2f3a-4c9e-8e2a-8e6f1a2b3c4d",
"disclaimer": "Nutrition values are estimates, not measurements. This is not medical advice. The image is an AI-generated illustration, not a photo of the actual prepared dish.",
"schemaVersion": "1.0",
"restrictionsApplied": {
"vegan": true,
"dairyFree": true
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"recipe"
],
"properties": {
"diets": {
"type": "array",
"items": {
"type": "string",
"maxLength": 60
},
"maxItems": 10,
"description": "Diet preferences, e.g. 'vegan', 'keto'. Provide diets and/or healthGoal."
},
"recipe": {
"type": "string",
"maxLength": 8000,
"minLength": 10,
"description": "The original recipe text to transform."
},
"healthGoal": {
"type": "string",
"maxLength": 300,
"description": "Free-text health goal or dietary preference. Provide diets and/or healthGoal."
},
"restrictions": {
"type": "object",
"properties": {
"vegan": {
"type": "boolean"
},
"custom": {
"type": "string",
"maxLength": 200
},
"noNuts": {
"type": "boolean",
"description": "Life-threatening allergy — zero tolerance."
},
"noPork": {
"type": "boolean"
},
"dairyFree": {
"type": "boolean"
},
"glutenFree": {
"type": "boolean"
}
}
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
} Other captured 402 responses (1)
Captured payload 2 of 2
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2D6503F39026E53FEBadbDf54B4F56150b4f1aEE",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://old2new.app/api/agent/transform",
"tags": [
"recipes",
"food",
"nutrition",
"dietary-restrictions",
"ai"
],
"iconUrl": "https://old2new.app/icon-192.png",
"mimeType": "application/json",
"description": "Transform a recipe to match dietary restrictions and health goals using Old2New's recipe-consistency and safety pipeline.",
"serviceName": "Old2New Agent API"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"diets": [
"vegan"
],
"recipe": "Classic Beef Lasagna: 1 lb ground beef, 1 jar marinara sauce, 12 lasagna noodles, 16 oz ricotta cheese, 2 cups shredded mozzarella, 1 egg, 1/2 cup parmesan, salt and pepper to taste. Brown the beef, layer noodles with sauces and cheeses, bake at 375F for 45 minutes.",
"healthGoal": "Lower saturated fat",
"restrictions": {
"vegan": true,
"dairyFree": true
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"model": "claude-sonnet-4-6",
"result": {
"shoppingList": {
"dairy": [],
"other": [
"cashew ricotta"
],
"pantry": [
"marinara sauce",
"lasagna noodles"
],
"produce": [
"onion",
"garlic"
],
"protein": [
"green lentils"
]
},
"transformedRecipe": {
"name": "Lentil Lasagna",
"ingredients": [
{
"item": "cooked green lentils",
"note": "swapped for ground beef",
"amount": "2 cups"
}
],
"instructions": [
"Brown the lentils with onion and garlic.",
"Layer noodles with sauce and cashew ricotta.",
"Bake at 375F for 45 minutes."
]
}
},
"requestId": "5b1e3e0a-2f3a-4c9e-8e2a-8e6f1a2b3c4d",
"disclaimer": "Nutrition values are estimates, not measurements. This is not medical advice.",
"schemaVersion": "1.0",
"restrictionsApplied": {
"vegan": true,
"dairyFree": true
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"recipe"
],
"properties": {
"diets": {
"type": "array",
"items": {
"type": "string",
"maxLength": 60
},
"maxItems": 10,
"description": "Diet preferences, e.g. 'vegan', 'keto'. Provide diets and/or healthGoal."
},
"recipe": {
"type": "string",
"maxLength": 8000,
"minLength": 10,
"description": "The original recipe text to transform."
},
"healthGoal": {
"type": "string",
"maxLength": 300,
"description": "Free-text health goal or dietary preference. Provide diets and/or healthGoal."
},
"restrictions": {
"type": "object",
"properties": {
"vegan": {
"type": "boolean"
},
"custom": {
"type": "string",
"maxLength": 200
},
"noNuts": {
"type": "boolean",
"description": "Life-threatening allergy — zero tolerance."
},
"noPork": {
"type": "boolean"
},
"dairyFree": {
"type": "boolean"
},
"glutenFree": {
"type": "boolean"
}
}
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Can I trust it score from our own monitoring
score from our own monitoring
#85 of 188 in AI. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.
- Reliability
- 100% uptime 30d
- Compliance
- A 14/14 checks pass
- Price
- $0.10 to $0.25 p81 in AI
- Risk
- clean no risk flag
- Traction
- $10.25 30d 1 buyers, top buyer 100% (address, not entity)
- Last change
- schema changed 27d ago 2 in 30d
14/14 compliance checks
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
402 terms unchanged since 2026-09-11. Last up 2026-10-08.
── Site signals
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
How the score works
What the score read on this service: status online, 100% uptime 30d, 742ms response p95, x402 compliance 14 of 14, $0.1 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.
The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.
Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.
It is a score inside AI, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 188 listings, this one among them: the same 188 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.
Settled via mogami ($10.25, 3 tx). Traction is a conservative undercount; first settlement seen 2026-09-08.
All measured facts
What it does
Recipe transformation and recipe-photo generation API for dietary restrictions and health goals.
Old2New Agent API is a listed x402 AI API. Captured payment terms name Base. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.
Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.
Page rendered at . This response time is separate from the observation and computation times attached to each measurement.
Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.
Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.
Observed daily coverage: 2026-09-09 to 2026-10-08 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: . Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.
Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.
x402 List home · Services · AI
- uptime · latest daily rollup
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 742ms
- avg response
- 618ms
- total checks
- 2,720
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
- price (min)
- $0.10
- price (max)
- $0.25
- category percentile (min)
- p81 in AI
- category percentile (max)
- p63 in AI
- endpoints / prices
- 2 / 2
- model
- tiered
- stability
- 100%
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- 128d
- registrar
- Namecheap Inc.
- hosting
- custom
- domain created
- 2026-05-30
Identity facts, not a risk score.
- assessment volume 30d
- $10.25
- exact assessment volume 30d (USD)
- 10.25
- assessment recorded at (UTC)
- 2026-10-08T08:53:01.214Z
- buyers 30d
- 1
- settlements 30d
- 3
- measured since
- 2026-09-08 (start of our harvest window)
- last settlement
- 2026-09-11
- top buyer share
- 100% of 30d volume (address, not entity)
- trend 7d vs 30d
- 0.00x the 30d daily rate
- networks
- eip155:8453
- volume all-time
- $10.35
- settlements all-time
- 4
- median settlement 30d
- $0.25
- max settlement 30d
- $9.90
Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is part of the ranking score: a higher share lowers the traction part of the score, by up to half when one address holds all 30d volume.
- member since
- 2026-08-24
Recent checks
| Checked at (UTC) | Status | HTTP | Response | Endpoints |
|---|---|---|---|---|
| Online | 402 | 336ms | 2 | |
| Online | 402 | 249ms | 2 | |
| Online | 402 | 644ms | 2 | |
| Online | 402 | 415ms | 2 | |
| Online | 402 | 659ms | 2 | |
| Online | 402 | 349ms | 2 | |
| Online | 402 | 410ms | 2 | |
| Online | 402 | 683ms | 2 | |
| Online | 402 | 214ms | 2 | |
| Online | 402 | 320ms | 2 | |
| Online | 402 | 459ms | 2 | |
| Online | 402 | 201ms | 2 | |
| Online | 402 | 388ms | 2 | |
| Online | 402 | 242ms | 2 | |
| Online | 402 | 463ms | 2 | |
| Online | 402 | 524ms | 2 | |
| Online | 402 | 742ms | 2 | |
| Online | 402 | 545ms | 2 |
Changes2 in 30d
| Observed at (UTC) | Change | Evidence |
|---|---|---|
| schema changed | schema removed schema added | |
| schema changed | schema removed schema removed schema added schema added |
Over time
- Volume 30d
- $10.25
- Uptime
- 1 of 29 completed days below 100%
More charts
09-09 to 10-08* UTC
Scores over time
09-09 to 10-08* UTC
09-09 to 10-08* UTC
09-09 to 10-08* UTC
Scores: one day per column, 09-09 to 10-08*, on the columns of Response time. Uptime held below 100% on some days in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.
Each series spans only the dates it has data for. Every series is also served as JSON at /api, /scores, /volume and /buyers.
Values
* today so far, partial (UTC).
The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.
Daily snapshot total, 30d: $10.25, peak $9.90 on 09-10. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.
Daily address snapshots: 2026-09-09 to 2026-10-08 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here.
Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.
Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.
| Day | Volume | Buyers | Settlements | Uptime | Response | Compliance | Price percentile | Site signals |
|---|---|---|---|---|---|---|---|---|
| 2026-09-09 | no data | no data | no data | 100% | 628.60ms | 14/14 | p78 | 4/6 |
| 2026-09-10 | $9.90 | 1 | 1 | 100% | 706.53ms | 14/14 | p78 | 4/6 |
| 2026-09-11 | $0.35 | 1 | 2 | 100% | 422.82ms | 14/14 | p78 | 4/6 |
| 2026-09-12 | no data | no data | no data | 100% | 509.09ms | 14/14 | p78 | 4/6 |
| 2026-09-13 | no data | no data | no data | 100% | 457.10ms | 14/14 | p78 | 4/6 |
| 2026-09-14 | no data | no data | no data | 100% | 421.87ms | 14/14 | p80 | 4/6 |
| 2026-09-15 | no data | no data | no data | 100% | 572.66ms | 14/14 | p80 | 4/6 |
| 2026-09-16 | no data | no data | no data | 100% | 594.97ms | 14/14 | p80 | 4/6 |
| 2026-09-17 | no data | no data | no data | 98.89% | 812.07ms | 14/14 | p80 | 4/6 |
| 2026-09-18 | no data | no data | no data | 100% | 578.94ms | 14/14 | p80 | 4/6 |
| 2026-09-19 | no data | no data | no data | 100% | 902.81ms | 14/14 | p80 | 4/6 |
| 2026-09-20 | no data | no data | no data | 100% | 650.89ms | 14/14 | p80 | 4/6 |
| 2026-09-21 | no data | no data | no data | 100% | 518.92ms | 14/14 | p81 | 4/6 |
| 2026-09-22 | no data | no data | no data | 100% | 680.64ms | 14/14 | p81 | 4/6 |
| 2026-09-23 | no data | no data | no data | 100% | 369.46ms | 14/14 | p80 | 4/6 |
| 2026-09-24 | no data | no data | no data | 100% | 1112.78ms | 14/14 | p80 | 4/6 |
| 2026-09-25 | no data | no data | no data | 100% | 735.74ms | 14/14 | p80 | 4/6 |
| 2026-09-26 | no data | no data | no data | 100% | 595.66ms | 14/14 | p81 | 4/6 |
| 2026-09-27 | no data | no data | no data | 100% | 977.90ms | 14/14 | p81 | 4/6 |
| 2026-09-28 | no data | no data | no data | 100% | 557.14ms | 14/14 | p81 | 4/6 |
| 2026-09-29 | no data | no data | no data | 100% | 536.36ms | 14/14 | p80 | 4/6 |
| 2026-09-30 | no data | no data | no data | 100% | 578.22ms | 14/14 | p80 | 4/6 |
| 2026-10-01 | no data | no data | no data | 100% | 540.73ms | 14/14 | p80 | 4/6 |
| 2026-10-02 | no data | no data | no data | 100% | 586.29ms | 14/14 | p80 | 4/6 |
| 2026-10-03 | no data | no data | no data | 100% | 591.59ms | 14/14 | p80 | 4/6 |
| 2026-10-04 | no data | no data | no data | 100% | 513.73ms | 14/14 | p81 | 4/6 |
| 2026-10-05 | no data | no data | no data | 100% | 1224.69ms | 14/14 | p81 | 4/6 |
| 2026-10-06 | no data | no data | no data | 100% | 344.73ms | 14/14 | p81 | 4/6 |
| 2026-10-07 | no data | no data | no data | 100% | 386.29ms | 14/14 | p81 | 4/6 |
| 2026-10-08* | no data | no data | no data | 100% | 382.71ms | 14/14 | p81 | 4/6 |
Alternatives in AI
5 of 187 other ranked services in AI, ordered by the same measured score.
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Delisting
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