Otto AI
64 pay-per-call AI services on x402 V2 — market intel, DeFi execution, AI creative tools. USDC on Base, Polygon, or Solana. Permit2-ready, SIWX for repeat access. From $0.001 per call.
TradingLiveeip155:8453Exactvia cdp
Market riskDepeg riskStablecoin riskLiquidity riskSystemic risk
Calls · 30d
321↓ 0.6%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$28.39
Verified settled volume
A floor: summed over 5,000 of up to 140,547 indexed settlements. The exact verified count is not computed for a wallet this size.
$0.0020
Listed price
As published in the catalog. Always read the live 402 before paying.
321
Calls · 30d
Upstream's own call count for this endpoint, not ours.
10
Unique payers · 30d
Last called 2026-09-22 04:56Z
—
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 payment terms are the accepts[] array in this body -- mirrored verbatim from the base64 PAYMENT-REQUIRED response header, which remains the x402 v2 protocol contract. Pay one of them with an x402 client, then retry to receive the data.",
"error": "payment_required",
"price": "$0.002",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
},
"payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"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.
0.002USDC≈ $0.002 USD
on Base · exact scheme
Pay 0.002 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
- 2000 smallest units
2000units
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": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"data": {
"depeg": {
"score": 29,
"worstSymbol": "USDX",
"depeggedCount": 2,
"totalSupplyUsd": 224731008451,
"pricedSupplyPct": 99.6,
"supplyAtRiskPct": 0.55,
"supplyAtRiskUsd": 1240000000,
"supplyFlow7dPct": 0.84,
"worstDeviationBps": -69,
"unpricedMaterialPct": 0.452,
"materialDepeggedCount": 1,
"unpricedMaterialCount": 5,
"unpricedMaterialSymbols": [
"USDX",
"M",
"USDM",
"MNEE",
"SUSD"
],
"unpricedMaterialSupplyUsd": 1410000000
},
"scope": "Global USD-stablecoin depeg health + Base on-chain DEX exit-liquidity. Stablecoin systemic + Base liquidity microstructure only — derivatives/sentiment not included.",
"coverage": {
"legsExpected": 2,
"legsReporting": 2
},
"riskLevel": "moderate",
"aiRiskLine": "Market stress is moderate and led by the Base liquidity leg: a third of analyzed Base movers run on thin exit liquidity, while global stablecoin pegs are broadly intact aside from one small-cap 69bps below peg. Aggregate stablecoin supply is still expanding 0.84% over 7d - watch the thin-liquidity Base names for slippage.",
"confidence": "degraded",
"generatedAt": "2026-06-29T12:00:00.000Z",
"dexLiquidity": {
"score": 33,
"network": "base",
"moverSource": "top-volume",
"moversSampled": 15,
"moversAnalyzed": 12,
"thinLiquidityPct": 33.3,
"baseDexVolume24hUsd": 412000000,
"thinLiquidityMovers": 4
},
"legsAvailable": [
"depeg",
"dexLiquidity"
],
"degradedReasons": [
"depeg leg blind to 5 unpriced material stablecoin(s) (0.452% of supply: USDX, M, USDM, MNEE, SUSD) — a depeg there would be invisible to the score",
"Base exit-liquidity sampled from the top-volume universe (DexScreener boosts empty) — skews to higher-liquidity names, so thin-% may understate small-cap exit stress"
],
"compositeRiskScore": 31
},
"meta": {
"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",
"properties": {}
}
},
"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": "2000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1790053305,
"resourceUrl": "https://x402.ottoai.services/market-risk"
},
"signature": "0x3b6bfba502f83e4435fc80a132a33c2c241a7868a063799fe44913f6f7c52b286682acba79b2d815e266529bc1c4d3751dbc71c3b8e926122c25e60b894c40281c",
"acceptIndex": 0
},
{
"format": "eip712",
"payload": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"version": 1,
"validUntil": 1790053305,
"resourceUrl": "https://x402.ottoai.services/market-risk"
},
"signature": "0xf744c05a1f8c954deca0d71d532dd777afe6e4f25211f44a06c98608f6b059945366cbe21eb9336025627b57f1b24437f1b7d9fed51338a8fea47b3dfe4bf6931c",
"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
- 2026-09-22 04:56Z
- Last indexed by Roundhouse
- 2026-09-24 11:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-13 09:15Z
- 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. 30 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/market-risk, 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.