Otto AI
89 pay-per-call AI services on x402 V2 — market intel, DeFi execution, AI creative tools. USDC on Base or Solana. Permit2-ready, SIWX on select endpoints. From $0.001 per call.
DataLiveeip155:8453Exactvia cdp
8-k filingsMaterial eventsCorporate eventsSec filings8-k item codes
Calls · 30d
3
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far.
$24.90
Verified settled volume
A floor: summed over 5,000 of 130,376 verified settlements.
$0.0030
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-02 19:37Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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.
{
"docs": "https://docs.useotto.xyz/getting-started/agent-quickstart",
"hint": "This is a pay-per-call x402 endpoint. The price and payment options (networks, signed offers) are in the PAYMENT-REQUIRED response header (x402 v2). Pay with an x402 client, then retry to receive the data.",
"error": "payment_required",
"price": "$0.003",
"contact": {
"email": "admin@useotto.xyz",
"twitter": "https://twitter.com/useOttoAI",
"feedback": "POST https://x402.ottoai.services/feedback ($0.001) -- money-back guarantee on Otto-recommended services and Full Auto; feature requests welcome (email/Telegram are free).",
"telegram": "https://t.me/DeFAI_Capital"
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.003USDC≈ $0.003 USD
on Base · exact scheme
Pay 0.003 USDC on Base to 0x0E84…6b808. The signed payment is good for 5 minutes.
- Paid to
- 0x0E84…6b808
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 3000 smallest units
3000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme
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
- 6XcSfq…TDPN5
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
"amount": "3000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ticker": "NVDA"
}
},
"output": {
"type": "json",
"example": {
"data": {
"note": "The material events this company reported to the SEC on Form 8-K, each c...",
"issuer": {
"cik": "1045810",
"name": "NVIDIA CORP"
},
"ticker": "NVDA",
"window": {
"end": "2026-09-01",
"start": "2026-06-03",
"lookbackDays": 90
},
"caveats": [
{
"code": "eight_k_item_codes_not_contents",
"plain": "This endpoint returns WHICH material events a company reported and when,...",
"affects": [
"filings"
]
}
],
"filings": [
{
"url": "https://www.sec.gov/Archives/edgar/data/1045810/000104581026000069/",
"form": "8-K",
"items": [
{
"code": "1.01",
"known": true,
"title": "Entry into a Material Definitive Agreement",
"section": 1,
"sectionTitle": "Registrant's Business and Operations"
}
],
"filedAt": "2026-08-17",
"eventDate": "2026-08-17",
"acceptedAt": "2026-08-17T12:41:33.000Z",
"isAmendment": false,
"accessionNumber": "0001045810-26-000069",
"includesEarningsItem": false,
"primaryDocDescription": "8-K"
}
],
"summary": {
"itemCounts": [
{
"code": "9.01",
"known": true,
"title": "Financial Statements and Exhibits",
"filingsWithItem": 2
}
],
"filingCount": 4,
"latestFiledAt": "2026-08-17",
"amendmentCount": 0,
"earliestFiledAt": "2026-06-18",
"latestEventDate": "2026-08-17",
"unknownItemCodes": 0,
"distinctItemCodes": 6,
"earliestEventDate": "2026-06-15",
"filingsWithEarningsItem": 0
},
"coverage": {
"truncated": false,
"lookbackDays": 90,
"filingsServed": 4,
"maxFilingsServed": 20,
"subjectIsRegistrant": true,
"candidatesInLookback": 5,
"earningsOnlyExcluded": 1,
"lookbackFullyCovered": true,
"filingsWithoutItemCodes": 0
},
"generatedAt": "2026-09-01T12:00:00.000Z",
"methodology": "https://docs.useotto.xyz/acp-swarm/sec-filings-methodology"
},
"meta": {
"dataAsOf": "",
"degraded": false,
"validUntil": "",
"generatedAt": "",
"stalenessSec": 0
},
"status": "success"
}
}
},
"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": [
"ticker"
],
"properties": {
"ticker": {
"type": "string",
"description": "US-listed stock ticker symbol (e.g. NVDA, GME, MSTR)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"status"
],
"properties": {
"data": {},
"meta": {
"type": "object"
},
"reason": {
"type": "string",
"description": "status=unavailable only; every >=400 is UNCHARGED"
},
"status": {
"enum": [
"success",
"unavailable"
],
"type": "string"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_hc2dhq09"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
},
"offer-receipt": {
"info": {
"offers": [
{
"format": "eip712",
"payload": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1788378127,
"resourceUrl": "https://x402.ottoai.services/8k-material-events"
},
"signature": "0x02d3aba001a02c1f10f9f0e66b62a73e007a531c2f5069fc0e3bc0c1363401a77d1d0bcbfec5e9f68ee157b6e77c890855a53fa56a8741aebd730ab9f2ecd03e1c",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
"amount": "3000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1788378127,
"resourceUrl": "https://x402.ottoai.services/8k-material-events"
},
"signature": "0x28bf67c6aed2ce9fe77a8e68b62048b33899dffb07428295bf72498bae03772d3b321e6c954cc87a423bc12d01cac225a62d6f7d806f5f3c5adea50595ad21d11c",
"acceptIndex": 1
}
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"format",
"signature"
],
"properties": {
"format": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"properties": {
"asset": {
"type": "string"
},
"payTo": {
"type": "string"
},
"amount": {
"type": "string"
},
"scheme": {
"type": "string"
},
"network": {
"type": "string"
},
"version": {
"type": "integer"
},
"validUntil": {
"type": "integer"
},
"resourceUrl": {
"type": "string"
}
}
},
"signature": {
"type": "string"
},
"acceptIndex": {
"type": "integer"
}
}
}
}
}
}
},
"otto-content-receipt": {}
}Provenance
- Seen in the source catalog
- 2026-09-02 19:37Z
- Last indexed by Roundhouse
- 2026-09-04 20:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-01 14:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
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. 3 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 Otto AI 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=Otto%20AI' 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://x402.ottoai.services/8k-material-events, 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://app.roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://app.roundhouseai.io/skill.md first — it is the whole procedure.