Search arXiv papers | Vextorium
Search scientific papers on arXiv (AI, physics, maths, economics...): title, authors, abstract, categories, dates and PDF link; by relevance or newest, with category filter (cs.AI, cs.CR, q-fin...).
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 0.003 USDC on Base to 0xb9f0…71aCf. The signed payment is good for 5 minutes.
- Paid to
- 0xb9f0…71aCf
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 3000 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
- HcjfmZ…t3pz2
- 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
- 0xb9f0…71aCf
- 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
- 0xb9f0…71aCf
- Token contract
- 0x0b2C…7Ff85
- Payment window
- 168 hours
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
- 0xb9f0…71aCf
- Token contract
- 0x3600…00000
- Payment window
- 168 hours
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
- rEac5r…2pNCp
- Token contract
- 524C55…00000
- 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
- rEac5r…2pNCp
- Token contract
- XRP
- Payment window
- 5 minutes
The catalog’s raw entry
[
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"extra": {
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"version": "2"
},
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
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},
"payTo": "HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2",
"amount": "3000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"amount": "3000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
"extra": {
"name": "GatewayWalletBatched",
"assets": [
{
"symbol": "USDC",
"address": "0x0b2c639c533813f4aa9d7837caf62653d097ff85",
"decimals": 6,
"authorizationVersions": [
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]
}
],
"version": "1",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"minValiditySeconds": 604800
},
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"amount": "3000",
"scheme": "exact",
"network": "eip155:10",
"maxTimeoutSeconds": 604900
},
{
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"name": "GatewayWalletBatched",
"assets": [
{
"symbol": "USDC",
"address": "0x3600000000000000000000000000000000000000",
"decimals": 6,
"authorizationVersions": [
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]
}
],
"version": "1",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"minValiditySeconds": 604800
},
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"amount": "3000",
"scheme": "exact",
"network": "eip155:5042",
"maxTimeoutSeconds": 604900
},
{
"asset": "524C555344000000000000000000000000000000",
"extra": {
"issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
"invoiceId": "96455F4CD60D42CE986932A31AB034A3",
"sourceTag": 804681468,
"areFeesSponsored": false
},
"payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp",
"amount": "0.003",
"scheme": "exact",
"network": "xrpl:0",
"maxTimeoutSeconds": 300
},
{
"asset": "XRP",
"extra": {
"invoiceId": "87E0BF8AEECD4EDC88742B121DC67525",
"sourceTag": 804681468,
"areFeesSponsored": false
},
"payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp",
"amount": "2310",
"scheme": "exact",
"network": "xrpl:0",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"limite": 2,
"consulta": "agent payments"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"total": 438,
"fuente": "arXiv API (metadatos CC0). Thank you to arXiv for use of its open access interoperability.",
"consulta": "agent payments",
"articulos": [
{
"id": "2610.01756v1",
"pdf": "https://arxiv.org/pdf/2610.01756v1",
"enlace": "http://arxiv.org/abs/2610.01756v1",
"titulo": "SoK: Decentralized Agent Economic Infrastructure",
"autores": [
"Rui Sun",
"Xihan Xiong"
],
"resumen": "Decentralized agent economies increasingly build a single task from protocols that were designed and secured separately. This creates a simple problem: a workflow can look correct at each step and still produce the wrong outcome. For example, a correct escrow may release payment on an authorized app…",
"publicado": "2026-10-01",
"categorias": [
"cs.CR",
"cs.AI"
],
"actualizado": "2026-10-01"
},
{
"id": "2609.38914v1",
"pdf": "https://arxiv.org/pdf/2609.38914v1",
"enlace": "http://arxiv.org/abs/2609.38914v1",
"titulo": "Risk-Aware Adaptive Evaluation: Finding High-Impact Failures Under Limited Budgets",
"autores": [
"Priyanath Maji",
"Spandan Ghose Chowdhury"
],
"resumen": "Evaluating interactive agents is expensive. Agent behavior is stochastic, so reliability must be measured over repeated trials, but failures are rare and differ widely in how much they matter. Standard benchmarks spend this budget uniformly: a read-only lookup is sampled as often as an irreversible …",
"publicado": "2026-09-30",
"categorias": [
"cs.AI",
"cs.LG"
],
"actualizado": "2026-09-30"
}
],
"categoria": null
}
}
},
"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": {
"required": [
"consulta"
],
"properties": {
"orden": {
"enum": [
"recientes",
"relevancia"
],
"type": "string"
},
"limite": {
"type": "integer"
},
"consulta": {
"type": "string"
},
"categoria": {
"type": "string"
}
}
},
"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",
"null"
],
"properties": {
"total": {
"type": [
"number",
"null"
]
},
"fuente": {
"type": [
"string",
"null"
]
},
"consulta": {
"type": [
"string",
"null"
]
},
"articulos": {
"type": [
"array",
"null"
],
"items": {
"type": [
"null",
"object"
],
"properties": {
"id": {
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"null",
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]
},
"pdf": {
"type": [
"null",
"string"
]
},
"enlace": {
"type": [
"null",
"string"
]
},
"titulo": {
"type": [
"null",
"string"
]
},
"autores": {
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"array",
"null"
],
"items": {
"type": [
"null",
"string"
]
}
},
"resumen": {
"type": [
"null",
"string"
]
},
"publicado": {
"type": [
"null",
"string"
]
},
"categorias": {
"type": [
"array",
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],
"items": {
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}
},
"actualizado": {
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}
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}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-20 22:16Z
- Last indexed by Roundhouse
- 2026-10-26 17:20Z
- Last enriched (probe, favicon, geo)
- 2026-10-03 03:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 200
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. 32 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 Search arXiv papers | Vextorium 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=Search%20arXiv%20papers%20%7C%20Vextorium' 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.vextorium.com/arxiv-buscar-pago, 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.