api.doseplot.com
Pharmacokinetic simulation for one compound: walks the published model at one dose and cadence and returns the modelled serum curve over the requested horizon plus a 60-day washout tail. Deterministic math over published reference data -- not medical advice, not a prescription, and for relay to a human decision-maker rather than autonomous administration.
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.
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 0.01 USDC on Base to 0x9E3d…9eBd9. The signed payment is good for 5 minutes.
- Paid to
- 0x9E3d…9eBd9
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x9E3df8006B1917ECcED9591BeCcb893d0DE9eBd9",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"dose_mg": 100,
"compound": "testosterone-cypionate",
"duration_weeks": 12,
"samples_per_day": 4,
"injections_per_week": 1
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"meta": {
"more": "multi-compound protocols: https://doseplot.com/app",
"network_note": "Paid calls settle in USDC on Base (eip155:8453) via x402.",
"duration_weeks": 12,
"samples_per_day": 4,
"injections_per_week": 1
},
"units": "ng/dL",
"series": [
{
"day": 1,
"level": 0
},
{
"day": 1.25,
"level": 0
},
{
"day": 1.5,
"level": 54.92289291144459
}
],
"compound": {
"id": 4,
"name": "Testosterone Cypionate",
"slug": "testosterone-cypionate"
},
"disclaimer": "Mathematical planning aid. Not medical advice. DosePlot is an informational tool, not a healthcare provider, and using it creates no provider-patient relationship. Do not start, stop, or change any protocol without the approval of a licensed healthcare professional.",
"intended_use": "Outputs are for relay to a human decision-maker; not for autonomous administration."
}
}
},
"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",
"oneOf": [
{
"required": [
"dose_mg"
]
},
{
"required": [
"dose_mcg"
]
},
{
"required": [
"dose_iu"
]
}
],
"required": [
"compound",
"injections_per_week",
"duration_weeks"
],
"properties": {
"route": {
"type": "string",
"description": "One of the compound's published routes (see /v1/compounds/{idOrSlug}); a string this compound does not publish is 422 route_unsupported_for_compound. Omitted, the compound's primary route is used."
},
"dose_iu": {
"type": "number",
"description": "Dose per injection in the compound's activity unit. Requires a published conversion for that compound, else 422 unit_unsupported_for_compound.",
"exclusiveMinimum": 0
},
"dose_mg": {
"type": "number",
"description": "Dose per injection, milligrams.",
"exclusiveMinimum": 0
},
"compound": {
"type": "string",
"description": "Canon id, slug, or alias. Slug and alias matching is case-insensitive."
},
"dose_mcg": {
"type": "number",
"description": "Dose per injection, micrograms.",
"exclusiveMinimum": 0
},
"duration_weeks": {
"type": "integer",
"maximum": 260,
"minimum": 1,
"description": "Length of the dosing window. The model always adds a 60-day washout tail."
},
"samples_per_day": {
"type": "integer",
"default": 24,
"maximum": 24,
"minimum": 1,
"description": "Sample resolution of the returned series."
},
"injections_per_week": {
"type": "number",
"maximum": 21,
"minimum": 0.25,
"description": "Injections per WEEK -- not per day. The name is the contract: a per-day reading of the same number changes the accepted dose range by 7x."
}
},
"description": "Exactly one dose field must be present. UNKNOWN FIELDS ARE REJECTED: a misspelling is a structural failure (400 with payment presented; the 402 challenge on the free tier), not a silently ignored key (a dropped `injections_per_week` would change the answer). The dose is converted to mg ONCE and the converted value is what both the range check and the model use.",
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-22 05:49Z
- Last indexed by Roundhouse
- 2026-09-24 15:10Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 06:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 405
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
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service api.doseplot.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=api.doseplot.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://api.doseplot.com/v1/pk/curve, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.