x402 List Submit a serviceSubmit
Menu

CottonmouthAI

payment-readyonlineimported

payment-ready until 2026-10-26

imported from the x402 Bazaar, not submitted by the operator · own this service? claim it · or ask to be removed

POST /audit with Rust smart contract source or a GitHub URL and it returns an LLM generated security audit report, with per finding severity, description, proof of concept and fix.

Part of the LoneStarOracle operator hub

cottonmouth.lonestaroracle.xyz ↗

Call it x402 v2

x402 v2

Base URL
https://cottonmouth.lonestaroracle.xyz
Payment
x402 v2, header channel
$ curl -i -X POST 'https://cottonmouth.lonestaroracle.xyz/audit'

An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.

Endpoints 1 paid route on cottonmouth.lonestaroracle.xyz

POST/auditBase+Sol$2.00since 07-20

Prices as captured in the 402 response: $2.00.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
MethodPathDescriptionPriceNetworkAsset402 channelCaptured
POST/auditAutonomous Rust smart contract security auditor · CosmWasm, Anchor, Stellar, NEAR$2.00Base+SolUSDCheadersince 07-20

Payment evidence

402 payload captured at . Check evidence JSON · Measurement methodology.

1 payload captured by the monitor.

201 lines, scroll inside

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "amount": "2000000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "amount": "2000000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x3600000000000000000000000000000000000000",
      "extra": {
        "name": "USDC",
        "version": "2",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0xeF2a4B6756895aAf1374640dcFCD4947959442ab",
      "amount": "2000000",
      "scheme": "exact",
      "network": "eip155:5042",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://cottonmouth.lonestaroracle.xyz/audit",
    "tags": [
      "smart-contract",
      "rust",
      "cosmwasm",
      "solana",
      "security"
    ],
    "iconUrl": "https://lonestaroracle.xyz/lso_logo.svg",
    "mimeType": "",
    "description": "Autonomous Rust smart contract security auditor — CosmWasm, Anchor, Stellar, NEAR",
    "serviceName": "CottonmouthAI"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "source": "example",
            "framework": "",
            "github_url": "example",
            "contract_name": "Contract"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "object",
          "format": "json",
          "example": "{\"contract_name\":\"MyContract\",\"framework\":\"CosmWasm\",\"verified\":True,\"false_positives_removed\":0,\"finding_counts\":{\"high_critical\":1,\"medium\":2,\"low\":1},\"report\":\"## Executive Summary\\nInteger overflow in token accounting found...\"}"
        }
      },
      "schema": {
        "name": "CottonmouthAI — Rust Smart Contract Audit",
        "tags": [
          "smart-contract",
          "rust",
          "cosmwasm",
          "solana",
          "security",
          "audit"
        ],
        "type": "object",
        "version": "1.0.0",
        "category": "security",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "title": "AuditRequest",
                "properties": {
                  "source": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "null"
                      }
                    ],
                    "title": "Source"
                  },
                  "framework": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "null"
                      }
                    ],
                    "title": "Framework",
                    "default": ""
                  },
                  "github_url": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "null"
                      }
                    ],
                    "title": "Github Url"
                  },
                  "contract_name": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "null"
                      }
                    ],
                    "title": "Contract Name",
                    "default": "Contract"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "type": "string",
                "const": "json"
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {}
            }
          }
        },
        "description": "Autonomous Rust smart contract security audit for CosmWasm, Anchor/Solana, Stellar/Soroban, and NEAR. Two-pass verification removes False positives."
      }
    },
    "merchant": {
      "url": "https://lonestaroracle.xyz",
      "name": "LoneStarOracle",
      "payTo": {
        "eip155:4663": "0xeF2a4B6756895aAf1374640dcFCD4947959442ab",
        "eip155:5042": "0xeF2a4B6756895aAf1374640dcFCD4947959442ab",
        "eip155:8453": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw"
      },
      "contact": "[email protected]",
      "operator": "direct (not a gateway or reseller)"
    }
  },
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

80/100 Solid

#108 of 136 in Verification. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability
100% uptime 30d
Compliance
A 14/14 checks pass
Price
$2.00 p97 in Verification
Risk
clean no risk flag
Traction
$0.70 30d 40 buyers, top buyer 33% (address, not entity)
Last change
schema changed 9d ago 1 in 30d
14/14 compliance checks
  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

402 terms unchanged since 2026-10-10. Last up 2026-10-19.

── Site signals

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
How the score works

What the score read on this service: status online, 100% uptime 30d, 1070ms response p95, x402 compliance 14 of 14, $2 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

It is a score inside Verification, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 136 listings, this one among them: the same 136 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Settled via coinbase ($32.03, 589 tx). Traction is a conservative undercount; first settlement seen 2026-04-30.

All measured facts

What it does

POST /audit with Rust smart contract source or a GitHub URL and it returns an LLM generated security audit report, with per finding severity, description, proof of concept and fix. Covers CosmWasm, Anchor/Solana, Soroban and NEAR. $2 USDC per call on Base or Solana.

CottonmouthAI is a listed x402 Verification API. Captured payment terms name Base, Solana. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.

Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.

Page rendered at . This response time is separate from the observation and computation times attached to each measurement.

Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.

Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.

Observed daily coverage: 2026-09-20 to 2026-10-19 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: . Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.

Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.

x402 List home · Services · Verification

uptime · latest daily rollup
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
1070ms
avg response
854ms
total checks
2,735

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

price (min)
$2.00
category percentile (min)
p97 in Verification
endpoints / prices
1 / 1
model
flat
stability
100%

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age
175d
registrar
NameCheap, Inc.
hosting
custom
domain created
2026-04-22

Identity facts, not a risk score.

assessment volume 30d
$0.70
exact assessment volume 30d (USD)
0.6963043478260869
assessment recorded at (UTC)
2026-10-19T14:13:01.551Z
buyers 30d
40
settlements 30d
589
measured since
2026-04-30 (start of our harvest window)
last settlement
2026-10-19
top buyer share
33% of 30d volume (address, not entity)
top 3 buyers share
61% of 30d volume (addresses, not entities)
concentrated volume
no
trend 7d vs 30d
0.56x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time
$7.77
settlements all-time
3,587
median settlement 30d
$0.05
max settlement 30d
$1.00

Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.

Attributed pro-quota: this payout address is shared, so volume is the operator-level figure divided by the services sharing it, while buyer and transaction counts stay whole. A declared convention, not an individually observed measure, and still a conservative undercount.

Currently sharing this payout address with AeroCheck, AgriPulse, CascadeWatch, ComputePulse, ConsumerPulse, CopperheadAI, CrownBlock, CyclePulse, DeFiRisk, DocEdge, Floyd Coding Agent, FundingRates, GovEdge, GridPulse, IndustrialMetals, LaborPulse, LatAmPulse, LeaseEdge, LoneStarOracle ChainScout, LoneStarOracle ContractCheck, LoneStarOracle EarningsCalendar, LoneStarOracle EquityScope, LoneStarOracle GeoPulse, LoneStarOracle InsiderFlow, LoneStarOracle Liquidations, LoneStarOracle MacroPulse, LoneStarOracle NewsSentiment, LoneStarOracle OptionsFlow, LoneStarOracle PortfolioRisk, LoneStarOracle TokenLaunch, LoneStarOracle TokenScope, LoneStarOracle WealthPulse, LoneStarOracle WeatherOracle, LoneStarOracle WhaleAlert, OpenInterest, RattlerAI, RealEstatePulse, RWA Risk, StablePulse, StakeEdge, StrategicMaterials, SupplyChainPulse, TechAnalysis, TradePulse, WalletRisk.

Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.

member since
2026-07-20
Recent checks
Latest 18 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)StatusHTTPResponseEndpoints
Online402539ms1
Online402617ms1
Online402875ms1
Online402890ms1
Online402791ms1
Online4021171ms1
Online402871ms1
Online402833ms1
Online402636ms1
Online402910ms1
Online402847ms1
Online402872ms1
Online402746ms1
Online402673ms1
Online402683ms1
Online4021030ms1
Online402810ms1
Online402806ms1

Changes1 in 30d

Latest 1 recorded changes, up to 10 in the last 30 days; newest first; observation times in UTC
Observed at (UTC)ChangeEvidence
schema changed

schema added POST /audit exact eip155:5042 0x3600000000000000000000000000000000000000 USDC 2 300 {"assetTransferMethod":"eip3009","name":"USDC","version":"2"}

all changes

Over time

On-chain volume daily snapshots, USD 30d: $0.70, peak $6.42 on 10-01
volume
Distinct buyers per dayDistinct buyers per day
Uptime 1 of 29 completed days below 100%
uptime below 100%, to scale
Volume 30d
$0.70
Uptime
1 of 29 completed days below 100%
Daily on-chain settlement volume in US dollars, 2026-09-20 to 2026-10-19; highest day $6.42 on 10-01; distinct buyers per day
More charts
Response time daily average, ms min 498ms, avg 851ms, max 1310ms

09-20 to 10-19* UTC

Scores over time

x402 compliance low 14/14, high 14/14

09-20 to 10-19* UTC

Price percentile in Verification own low to high; exact values below

09-20 to 10-19* UTC

Site signals present (of 6) own low to high; exact values below

09-20 to 10-19* UTC

Scores: one day per column, 09-20 to 10-19*, on the columns of Response time. Uptime held below 100% on some days in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.

Each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/cottonmouthai/price, /scores, /volume and /buyers.

Values

* today so far, partial (UTC).

The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.

Daily snapshot total, 30d: $32.71, peak $6.42 on 10-01. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.

Daily address snapshots: 2026-09-20 to 2026-10-19 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here.

Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.

Shared payout address (45 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 46 services sharing it: a declared convention, not an individually observed measure.

Per-service buyer and transaction counts are shown whole (integers), not divided; only volume is attributed pro-quota. A declared convention, not an individually observed measure.

Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.

Daily values, 2026-09-20 to 2026-10-19: address settlement volume in USD, distinct buyer and settlement counts, uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
DayVolumeBuyersSettlementsUptimeResponseCompliancePrice percentileSite signals
2026-09-20$0.5538100%810.27ms14/14p953/6
2026-09-21$0.71410100%1001.61ms14/14p953/6
2026-09-22$0.2524100%1062.57ms14/14p953/6
2026-09-23$1.00515100%844.14ms14/14p963/6
2026-09-24$0.81512100%505.61ms14/14p963/6
2026-09-25$0.79512100%498.18ms14/14p963/6
2026-09-26$0.2246100%565.30ms14/14p963/6
2026-09-27$0.1523100%601.08ms14/14p963/6
2026-09-28$3.97581100%584.93ms14/14p963/6
2026-09-29$0.97414100%552.19ms14/14p963/6
2026-09-30$1.58617100%560.27ms14/14p963/6
2026-10-01$6.42693100%551.30ms14/14p963/6
2026-10-02$2.21732100%515.48ms14/14p963/6
2026-10-03$0.2135100%529.46ms14/14p963/6
2026-10-04$0.1134100%1058.18ms14/14p973/6
2026-10-05$0.2736100%1233.90ms14/14p963/6
2026-10-06$0.58415100%1160.89ms14/14p963/6
2026-10-07$2.92665100%1310.04ms14/14p963/6
2026-10-08$2.4795398.89%1174.92ms14/14p963/6
2026-10-09$0.56513100%1046.26ms14/14p963/6
2026-10-10$0.3249100%1121.58ms14/14p973/6
2026-10-11$0.3036100%1067.23ms14/14p973/6
2026-10-12$0.4159100%1231.13ms14/14p973/6
2026-10-13$1.07723100%854.30ms14/14p973/6
2026-10-14$0.75517100%931.44ms14/14p963/6
2026-10-15$0.2937100%912.04ms14/14p964/6
2026-10-16$0.4149100%931.30ms14/14p974/6
2026-10-17$0.1134100%696.21ms14/14p974/6
2026-10-18$0.87520100%821.90ms14/14p974/6
2026-10-19*$1.43641100%799.20ms14/14p974/6

Alternatives in Verification

scvd.store · evidence observatory for the x402 economy strong 93/100 100% up 30d $239.60 30d
Rubric Protocol · Post-Quantum AI Attestation solid 93/100 99.8% up 30d $25.19 30d
Limitguard solid 90/100 99.6% up 30d $13.52 30d
PHION Agent Services solid 89/100 100% up 30d $1.45 30d
KushBitx AgentProof solid 89/100 100% up 30d $0.01 30d

5 of 135 other ranked services in Verification, ordered by the same measured score.

Own this service?

Keep this listing accurate. Ownership is proven with a domain check and every change is reviewed by hand.

Update this listing

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

Verify this service ($0.25)
Embed a badge

HTML

<a href="https://x402-list.com/services/cottonmouthai?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/cottonmouthai.svg" alt="CottonmouthAI listed on x402-list" height="28">
</a>

Markdown

[![CottonmouthAI on x402-list](https://x402-list.com/badge/cottonmouthai.svg)](https://x402-list.com/services/cottonmouthai?utm_source=badge&utm_medium=referral&utm_campaign=embed)

HTML, live uptime variant

<a href="https://x402-list.com/services/cottonmouthai?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/cottonmouthai.svg?data=uptime" alt="CottonmouthAI uptime on x402-list" height="28">
</a>
Delisting

To request delisting, email info@x402-list.com or update your listing at /services/cottonmouthai/update.