x402 List

x402 Protocol Service Directory

RattlerAI

Verification PAYMENT-READY imported

payment-ready until 2026-08-20

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

Automated security audit for Solidity and EVM smart contracts, returning a Markdown report with findings by severity, proof of concept snippets and remediation notes. $2 USDC per call on Base or Solana.

Pay from $2.00 in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

first settlement 2026-04-30 · $5.90 all-time · settled via coinbase

BASE URL https://rattler.lonestaroracle.xyz ENDPOINTS 1 NETWORK Base / Solana ASSET USDC MEMBER SINCE 2026-07-20 MONITORED SINCE 2026-07-20

ASSESSMENT

updated 4h ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 100%
uptime 24h
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
1577ms
avg response
838ms
total checks
2,131

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

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

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

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
110d
registrar
NameCheap, Inc.
hosting
custom
domain created
2026-04-22

Identity facts, not a risk score.

traction $1.1869565217 30d · 36 buyers
volume 30d
$1.1869565217
buyers 30d
36
settlements 30d
796
first settlement
2026-04-30
last settlement
2026-08-13
top buyer share
44% of 30d volume
trend 7d vs 30d
1.17x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time
$5.90
settlements all-time
2,311
median settlement 30d
$0.05
max settlement 30d
$1.00
settled via
coinbase ($54.60, 796 tx)

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, CottonmouthAI, 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, RealEstatePulse, RWA Risk, StablePulse, StakeEdge, StrategicMaterials, SupplyChainPulse, TechAnalysis, TradePulse, WalletRisk.

Top buyer share is a concentration signal, not part of the ranking score.

CHANGES

2 events, detecting since 2026-07-24

Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.

changes schema changed 7d ago (2 since 2026-07-24)

schema changed · 7d ago

schema removed POST /audit exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added POST /audit exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema changed · 7d ago

schema removed POST /audit exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added POST /audit exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

see all changes for this service

WHAT IT DOES

ai-derived

Provides audit services for smart contracts

category
smart-contract-audit
in
body
auditsmart-contractssecurity

AI-generated summary. The measured data is never altered by it.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
POST /audit $2.00 Base/Solana USDC header
1 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /audit returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i -X POST 'https://rattler.lonestaroracle.xyz/audit'
// 402 response (captured by monitor) · 1 payload · click to expand
[
  {
    "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": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
        },
        "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
        "amount": "2000000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://rattler.lonestaroracle.xyz/audit",
      "tags": [
        "smart-contract",
        "audit",
        "solidity",
        "security",
        "defi"
      ],
      "iconUrl": "https://lonestaroracle.xyz/lso_logo.svg",
      "mimeType": "",
      "description": "Autonomous smart contract security auditor — 20+ vulnerability classes, PoC exploits",
      "serviceName": "RattlerAI"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "source": "example",
              "github_url": "example",
              "contract_name": "example"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "object",
            "format": "json",
            "example": "{\"contract_name\":\"VulnerableBank\",\"framework\":\"Solidity/EVM\",\"verified\":True,\"false_positives_removed\":1,\"needs_manual_review\":[],\"finding_counts\":{\"high_critical\":2,\"medium\":1,\"low\":2},\"report\":\"## Executive Summary\\nCritical reentrancy vulnerability found...\"}"
          }
        },
        "schema": {
          "name": "RattlerAI — Smart Contract Security Audit",
          "tags": [
            "smart-contract",
            "audit",
            "solidity",
            "security",
            "defi",
            "code4rena"
          ],
          "type": "object",
          "version": "1.0.0",
          "category": "security",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "properties": {
                    "source": {
                      "type": "string",
                      "description": "Solidity contract source code"
                    },
                    "github_url": {
                      "type": "string",
                      "description": "GitHub URL to .sol file or repo"
                    },
                    "contract_name": {
                      "type": "string",
                      "description": "Contract name (optional)"
                    }
                  }
                },
                "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 Solidity/EVM smart contract security audit. Claude Opus + Slither. Code4rena-format report with severity ratings, PoC exploits, and recommendations."
        }
      },
      "bc_kg64bd18": {}
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 90d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/rattlerai/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
07-20 · uptime 100.0% · 353ms avg07-21 · uptime 100.0% · 602ms avg07-22 · uptime 100.0% · 515ms avg07-23 · uptime 100.0% · 571ms avg07-24 · uptime 100.0% · 626ms avg07-25 · uptime 100.0% · 730ms avg07-26 · uptime 100.0% · 784ms avg07-27 · uptime 100.0% · 775ms avg07-28 · uptime 100.0% · 692ms avg07-29 · uptime 100.0% · 1124ms avg07-30 · uptime 100.0% · 904ms avg07-31 · uptime 100.0% · 677ms avg08-01 · uptime 100.0% · 601ms avg08-02 · uptime 100.0% · 815ms avg08-03 · uptime 100.0% · 932ms avg08-04 · uptime 100.0% · 1005ms avg08-05 · uptime 100.0% · 1327ms avg08-06 · uptime 100.0% · 853ms avg08-07 · uptime 100.0% · 1109ms avg08-08 · uptime 100.0% · 1084ms avg08-09 · uptime 100.0% · 902ms avg08-10 · uptime 100.0% · 937ms avg08-11 · uptime 100.0% · 828ms avg08-12 · uptime 100.0% · 971ms avg08-13 · uptime 100.0% · 738ms avg07-2008-13
90d UPTIME 100%
RESPONSE TIME
07-20 · 353ms avg07-20 · 353ms avg07-21 · 602ms avg07-21 · 602ms avg07-22 · 515ms avg07-22 · 515ms avg07-23 · 571ms avg07-23 · 571ms avg07-24 · 626ms avg07-24 · 626ms avg07-25 · 730ms avg07-25 · 730ms avg07-26 · 784ms avg07-26 · 784ms avg07-27 · 775ms avg07-27 · 775ms avg07-28 · 692ms avg07-28 · 692ms avg07-29 · 1124ms avg07-29 · 1124ms avg07-30 · 904ms avg07-30 · 904ms avg07-31 · 677ms avg07-31 · 677ms avg08-01 · 601ms avg08-01 · 601ms avg08-02 · 815ms avg08-02 · 815ms avg08-03 · 932ms avg08-03 · 932ms avg08-04 · 1005ms avg08-04 · 1005ms avg08-05 · 1327ms avg08-05 · 1327ms avg08-06 · 853ms avg08-06 · 853ms avg08-07 · 1109ms avg08-07 · 1109ms avg08-08 · 1084ms avg08-08 · 1084ms avg08-09 · 902ms avg08-09 · 902ms avg08-10 · 937ms avg08-10 · 937ms avg08-11 · 828ms avg08-11 · 828ms avg08-12 · 971ms avg08-12 · 971ms avg08-13 · 738ms avg08-13 · 738ms avg07-2008-13
AVG RESP 836ms
PRICE (captured 402, USD)
07-20 · $2.0008-13 · $2.00$2.0007-2008-13
SUB-SCORES (uptime + x402 compliance)
07-20 compliance: 100% checks07-21 uptime: 100.0% compliance: 100% checks07-22 uptime: 100.0% compliance: 100% checks07-23 uptime: 100.0% compliance: 100% checks07-24 uptime: 100.0% compliance: 100% checks07-25 uptime: 100.0% compliance: 100% checks07-26 uptime: 100.0% compliance: 100% checks07-27 uptime: 100.0% compliance: 100% checks07-28 uptime: 100.0% compliance: 100% checks07-29 uptime: 100.0% compliance: 100% checks07-30 uptime: 100.0% compliance: 100% checks07-31 uptime: 100.0% compliance: 100% checks08-01 uptime: 100.0% compliance: 100% checks08-02 uptime: 100.0% compliance: 100% checks08-03 uptime: 100.0% compliance: 100% checks08-04 uptime: 100.0% compliance: 100% checks08-05 uptime: 100.0% compliance: 100% checks08-06 uptime: 100.0% compliance: 100% checks08-07 uptime: 100.0% compliance: 100% checks08-08 uptime: 100.0% compliance: 100% checks08-09 uptime: 100.0% compliance: 100% checks08-10 uptime: 100.0% compliance: 100% checks08-11 uptime: 100.0% compliance: 100% checks08-12 uptime: 100.0% compliance: 100% checks08-13 uptime: 100.0% compliance: 100% checksuptimecompliance07-2008-13

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

PILLARS OVER TIME (measured)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)
05-16 · $0.0505-17 · $0.7105-18 · $0.0505-20 · $0.1005-21 · $205-22 · $205-24 · $0.5805-25 · $0.1405-26 · $0.7005-28 · $0.0505-29 · $0.4005-30 · $206-03 · $3106-04 · $0.1506-06 · $106-08 · $206-09 · $0.4506-10 · $0.5606-11 · $0.3006-12 · $106-13 · $306-14 · $0.3006-15 · $0.5006-16 · $0.3506-17 · $1906-18 · $4506-19 · $2106-20 · $0.3806-21 · $406-22 · $1206-23 · $106-24 · $0.5506-25 · $0.5806-26 · $0.6506-27 · $1306-28 · $106-29 · $206-30 · $107-01 · $907-02 · $0.6007-03 · $0.9007-04 · $0.6007-05 · $0.5307-06 · $107-07 · $207-08 · $207-09 · $207-10 · $507-11 · $207-12 · $407-13 · $0.8007-14 · $307-15 · $207-16 · $0.5807-17 · $107-18 · $507-19 · $0.3507-20 · $0.9007-21 · $107-22 · $0.9707-23 · $0.7507-24 · $0.6107-25 · $0.5507-26 · $0.4807-27 · $0.6007-28 · $0.4007-29 · $0.6007-30 · $107-31 · $0.7008-01 · $0.8608-02 · $108-03 · $208-04 · $608-05 · $1108-06 · $108-07 · $208-08 · $0.3008-09 · $308-10 · $308-11 · $508-12 · $108-13 · $0.60peak $4505-1608-13

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.

DISTINCT BUYERS
05-16 · 1 buyer05-17 · 1 buyer05-18 · 1 buyer05-20 · 2 buyers05-21 · 2 buyers05-22 · 3 buyers05-24 · 1 buyer05-25 · 1 buyer05-26 · 1 buyer05-28 · 1 buyer05-29 · 2 buyers05-30 · 3 buyers06-03 · 2 buyers06-04 · 1 buyer06-06 · 1 buyer06-08 · 2 buyers06-09 · 1 buyer06-10 · 3 buyers06-11 · 1 buyer06-12 · 2 buyers06-13 · 1 buyer06-14 · 1 buyer06-15 · 2 buyers06-16 · 2 buyers06-17 · 1 buyer06-18 · 4 buyers06-19 · 3 buyers06-20 · 2 buyers06-21 · 6 buyers06-22 · 7 buyers06-23 · 4 buyers06-24 · 2 buyers06-25 · 1 buyer06-26 · 2 buyers06-27 · 3 buyers06-28 · 2 buyers06-29 · 11 buyers06-30 · 16 buyers07-01 · 10 buyers07-02 · 6 buyers07-03 · 10 buyers07-04 · 4 buyers07-05 · 6 buyers07-06 · 4 buyers07-07 · 7 buyers07-08 · 13 buyers07-09 · 8 buyers07-10 · 10 buyers07-11 · 23 buyers07-12 · 11 buyers07-13 · 5 buyers07-14 · 5 buyers07-15 · 6 buyers07-16 · 3 buyers07-17 · 3 buyers07-18 · 3 buyers07-19 · 2 buyers07-20 · 1 buyer07-21 · 3 buyers07-22 · 3 buyers07-23 · 3 buyers07-24 · 2 buyers07-25 · 3 buyers07-26 · 4 buyers07-27 · 3 buyers07-28 · 2 buyers07-29 · 3 buyers07-30 · 3 buyers07-31 · 2 buyers08-01 · 5 buyers08-02 · 2 buyers08-03 · 5 buyers08-04 · 4 buyers08-05 · 14 buyers08-06 · 4 buyers08-07 · 2 buyers08-08 · 2 buyers08-09 · 2 buyers08-10 · 4 buyers08-11 · 4 buyers08-12 · 4 buyers08-13 · 3 buyerspeak 23 buyers05-1608-13

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. 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.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-08-06 · last up 2026-08-13

  • 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

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
● OK 566ms
● OK 389ms
● OK 435ms
● OK 407ms
● OK 354ms
● OK 487ms
● OK 490ms
● OK 648ms
● OK 588ms
● OK 916ms
● OK 465ms
● OK 480ms
● OK 686ms
● OK 567ms
● OK 432ms
● OK 730ms
● OK 558ms
● OK 664ms

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RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

[ update this listing ]

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