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.
TradingLiveeip155:8453Exactvia cdp
Token scoreToken ratingToken health scoreLiquidity scoreHolder concentration
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 23 snapshots so far.
$28.39
Verified settled volume
A floor: summed over 5,000 of up to 140,583 indexed settlements. The exact verified count is not computed for a wallet this size.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-01 14:09Z
—
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": "$0.01",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
"amount": "10000",
"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.
0.01USDC≈ $0.01 USD
on Base · exact scheme
Pay 0.01 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
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"token": "0x532f27101965dd16442e59d40670faf5ebb142e4"
}
},
"output": {
"type": "json",
"example": {
"data": {
"band": "high",
"note": "A single 0-100 read on this toke...",
"score": 74.6,
"token": {
"name": "Brett",
"symbol": "BRETT",
"address": "0x532f27101965dd16442e59d40670fa...",
"network": "base"
},
"caveats": [
{
"code": "token_score_is_market_structure_...",
"plain": "This score measures market struc...",
"affects": [
"score"
]
}
],
"context": {
"fdvUsd": 418200000,
"priceUsd": 0.04182,
"turnover24h": 0.121,
"liquidityUsd": 1115151.5,
"marketCapUsd": 414220000,
"totalHolders": 3420,
"volume24hUsd": 284110.9,
"poolsReturned": 20,
"distinctDexCount": 10,
"matchedPoolCount": 20,
"oldestPoolAgeDays": 118,
"priceChange24hPct": -6.8,
"pooledLiquidityUsd": 2343405.11,
"top10SupplyPercent": 33.4,
"absPriceChange24hPct": 6.8,
"holderChange7dPercent": 1.9
},
"factors": [
{
"key": "liquidity",
"input": 2343405.11,
"plane": "dex-pools-token",
"score": 85.6,
"weight": 0.24,
"present": true,
"measures": "USD liquidity summed across the ...",
"inputUnit": "USD",
"planeReadAt": "2026-09-01T11:58:06.000Z",
"absenceReason": null
}
],
"formula": {
"bands": [
{
"min": 80,
"band": "very-high"
}
],
"method": "weighted-mean-of-piecewise-linea...",
"factors": [
{
"key": "liquidity",
"plane": "dex-pools-token",
"weight": 0.24,
"measures": "USD liquidity summed across the ...",
"inputUnit": "USD",
"inputField": "context.pooledLiquidityUsd",
"breakpoints": [
{
"x": 0,
"score": 0
}
]
}
],
"description": "Each factor maps its raw input o...",
"minWeightCoverage": 0.5
},
"coverage": {
"factorsTotal": 7,
"factorsPresent": 7,
"planesAnswered": [
"dex-price-base"
],
"weightCoverage": 1,
"minWeightCoverage": 0.5,
"planesUnavailable": []
},
"generatedAt": "2026-09-01T12:00:00.000Z",
"methodology": "https://docs.useotto.xyz/acp-swa...",
"scoreWithheldReason": null
},
"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",
"required": [
"token"
],
"properties": {
"token": {
"type": "string",
"description": "Base (chain 8453) ERC-20 contract address, 0x followed by 40 hex characters. Address-keyed on purpose: a ticker symbol could resolve to a different chain deployment on one data plane than on another, and the composite would then fuse two tokens. Use /token-price for symbol lookups."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"status",
"data",
"meta"
],
"properties": {
"data": {
"description": "Endpoint payload (see meta.generatedAt for freshness)"
},
"meta": {
"type": "object"
},
"status": {
"enum": [
"success"
],
"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": "10000",
"scheme": "exact",
"network": "eip155:8453",
"version": 1,
"validUntil": 1788272094,
"resourceUrl": "https://x402.ottoai.services/token-score"
},
"signature": "0x1a1fc5bba5600f1c5b904a71e076a372df63a8f39f0ee49b67def660136fca1f7988b3ce65a334211316b41c40b963b131d89aa2cecb79407acacb4420beadf41c",
"acceptIndex": 0
}
]
},
"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
- 2026-09-01 14:09Z
- Last indexed by Roundhouse
- 2026-09-24 15:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-24 12:45Z
- 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. 23 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/token-score, 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.