{"uid":"cap_4CLFaaz7I2H5R4hdyjKHZ","slug":"signalharness-chain-identifier-normalize-62fce6e3","name":"SignalHarness Chain Identifier Normalize","description":"Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.","url":"https://signalharness.ai/api/agent/services/chain_identifier_normalize/invoke","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"chain_identifier_request":{"type":"string","maxLength":65536,"minLength":2}}},"responseSchema":{"type":"json","example":{"replay":false,"result":{"warnings":["Syntax validation does not prove that a network is live or supported."],"service_id":"chain_identifier_normalize","evidence_scope":"caller_supplied_data","normalized_chain_identifier":"{\"caip2\":\"eip155:8453\",\"namespace\":\"eip155\",\"reference\":\"8453\"}"},"status":"succeeded","receipt":{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","usage":[],"status":"succeeded","network":"eip155:8453","artifacts":[],"endedAtMs":0,"latencyMs":0,"paymentId":"example-payment","receiptId":"example-receipt","requestId":"example-request","serviceId":"chain_identifier_normalize","executionId":"example-execution","startedAtMs":0,"amountAtomic":"5000","resultSha256":"2ba06956ecf012708d6e9bd69f353b3a26b607247602c7ffecc509d71f72be11","serviceVersion":"1.0.0","settlementReference":"0x0000000000000000000000000000000000000000000000000000000000000000"},"artifacts":[],"requestId":"example-request","executionId":"example-execution"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_fjCqkjpRK0GqThXiGXiC5","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Normalizes a blockchain chain identifier string into a canonical, standardized format with warnings about any ambiguities.","exampleAgentPrompt":"Can you normalize the chain identifier 'base mainnet' to its canonical standardized form so I can use it consistently across my cross-chain app?","exampleUseCases":[{"title":"Resolving inconsistent chain names in DeFi app","prompt":"I have a bunch of chain identifiers coming in from different sources — some say 'Ethereum', some say 'eth', some say 'eip155:1' — can you normalize all of these to their canonical form so I can process them uniformly?"},{"title":"Validating chain ID before on-chain transaction","prompt":"Before I submit this cross-chain transaction, can you check and normalize the chain identifier 'polygon mainnet' so I know it's in the correct canonical format?"},{"title":"Standardizing chain references in agent workflow","prompt":"My agent is receiving chain names like 'BASE', 'base-mainnet', and 'eip155:8453' interchangeably — can you normalize 'base-mainnet' to its proper canonical identifier so my workflow doesn't break?"}],"resultDescription":"Returns a JSON object with a normalized_chain_identifier field (the canonicalized chain string), a warnings array (highlighting any ambiguities or issues found in the input), a service_id, and an evidence_scope field indicating the data source. Also includes a receipt with payment, execution, and network metadata.","failureModes":["Input string too short (below 2 characters) or too long (above 65536 characters) returns a validation error","Completely unrecognizable or nonsensical chain identifier strings may return a result with warnings but no confident normalization","Network or payment failures may cause the request to fail with a non-success status","Ambiguous identifiers shared across multiple chains may return a result with multiple warnings"],"whenToPreferThis":"Use this endpoint when you need to canonicalize, standardize, or validate a blockchain chain identifier from an arbitrary input format (human-readable names, EIP-155 URIs, CAIP-2 identifiers, informal aliases) into a consistent normalized form. Ideal for multi-chain applications, cross-chain workflows, or any agent system that receives chain references from heterogeneous sources and needs a single canonical representation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T13:07:11.882Z","isFirstParty":false}