{"uid":"cap_Ddz4FO0XAEzl4o37EUpIz","slug":"m2m-sentinel-base-address-capability-score-lookup-6e5db948","name":"M2M Sentinel – Base Address Capability Score Lookup","description":"How completely could this Base contract be checked, and on what grade of evidence. Separates checked-and-clean from could-not-be-checked, which automated callers otherwise conflate. Explicitly not a safety score.","url":"https://api.m2msentinel.com/v1/security/score/:address","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"A Base mainnet contract address."}}},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["status"],"properties":{"status":{"type":"string","const":"SUCCESS"},"address":{"type":"string"},"capabilityScore":{"type":["number","null"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_hsJIMwFy5Y2pfWv-ZYlPC","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a static bytecode-derived capability score (capabilityScore) for a given Base mainnet contract address, covering coverage index rather than any safety or risk rating","exampleAgentPrompt":"What's the M2M Sentinel capability score for the Base contract at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48?","exampleUseCases":[{"title":"DeFi protocol capability screening","prompt":"Pull the M2M Sentinel capability coverage index for the Base contract 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD — I want to know what capabilities the bytecode exposes before interacting with it."},{"title":"Agent pipeline contract enrichment","prompt":"For each of these Base contract addresses in my pipeline, grab the capability score from M2M Sentinel so I can filter out any that return null before proceeding."},{"title":"On-chain due diligence lookup","prompt":"Before my agent integrates with this new Base protocol, can you check the M2M Sentinel capability index for 0x6B175474E89094C44Da98b954EedeAC495271d0F and tell me the score?"}],"resultDescription":"A JSON object containing the contract address echoed back, a status field ('SUCCESS'), and a capabilityScore that is either a numeric value representing the static bytecode-derived capability coverage index or null if no score is available for that address.","failureModes":["Invalid address format (not matching ^0x[0-9a-fA-F]{40}$) returns an error or 400","Address not indexed on Base mainnet returns capabilityScore: null","Network or upstream outage returns 5xx","Insufficient payment or missing x402 payment header returns 402"],"whenToPreferThis":"Choose this endpoint when you need a quick, static, bytecode-level capability coverage index for a specific Base mainnet contract address — particularly useful for agent pipelines doing pre-interaction due diligence or filtering. Not suitable when you need a real-time safety score, risk rating, token pricing, gas fees, or transfer event data; those are covered by sibling M2M Sentinel endpoints.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:37:28.067Z","isFirstParty":false}