HoldsUp
What podcasts claim about health and science, checked against published research. Every verdict links to the study behind it.
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 0.02 USDC on Base to 0x14dD…2b38b. The signed payment is good for 1 minute.
- Paid to
- 0x14dD…2b38b
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- 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
- 0x14dD…2b38b
- Token contract
- 0xaf88…e5831
- Payment window
- 1 minute
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
- 0x14dD…2b38b
- Token contract
- 0x3c49…c3359
- Payment window
- 1 minute
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x14dDF179048b7e7bF1B80BAF3b2B4D18BA42b38b",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x14dDF179048b7e7bF1B80BAF3b2B4D18BA42b38b",
"amount": "20000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 60
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x14dDF179048b7e7bF1B80BAF3b2B4D18BA42b38b",
"amount": "20000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "does cold plunging raise dopamine",
"limit": 5
}
},
"output": {
"type": "json",
"example": {
"query": "does cold plunging raise dopamine",
"claims": [
{
"id": 91234,
"text": "Cold water immersion raises dopamine by 250 percent for hours.",
"score": 0.8712,
"verdict": "overstated",
"show_title": "Huberman Lab",
"ts_start_s": 1834,
"episode_slug": "huberman-lab-cold-exposure",
"speaker_name": "Andrew Huberman",
"speaker_slug": "andrew-huberman",
"verdict_note": "One small trial (n=10) found a 250% rise that faded within an hour.",
"episode_title": "Using deliberate cold exposure for health and performance",
"speaker_label": "Andrew Huberman",
"grade_certainty": "low",
"episode_published_at": "2026-08-30"
}
],
"covered": true,
"citations": [
{
"pmid": "10751106",
"year": 2000,
"title": "Human physiological responses to immersion into water of different temperatures",
"journal": "Eur J Appl Physiol",
"claim_id": 91234,
"relation": "context",
"cebm_level": 4,
"is_retracted": 0
}
]
}
}
},
"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": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "The claim or question, in plain words, 3 to 500 characters"
},
"limit": {
"type": "integer",
"maximum": 20,
"minimum": 1,
"description": "Claims to return, 1 to 20, default 10"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-17 11:04Z
- Last indexed by Roundhouse
- 2026-09-18 01:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-17 13:45Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 400
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
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service HoldsUp 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=HoldsUp' 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://holdsup.app/api/v1/search, 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.