{"uid":"cap_34c6dWiuQpPczoX71MSRu","slug":"tereno-base-chain-snapshot-e51b040c","name":"Tereno Base Chain Snapshot","description":"What is the current state of Base? Latest block number, timestamp, base fee and suggested gas fees in a single cheap call with no parameters — the fastest way to test an x402 payment loop end to end. Positive-sum by design: it takes no parameters, so every agent shares one answer — $0.02 if you are the first inside the freshness window, $0.01 for everyone after you.","url":"https://www.tereno.xyz/api/v1/capabilities/chain.snapshot/invoke","method":"GET","headers":{},"bodySchema":{"type":"object","$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"},"queryParams":{"type":"object","properties":{"quote":{"type":"string","description":"Optional single-use quote id."}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["capabilityId","invocationId","verdict","result","pricing","receiptUrl"],"properties":{"result":{"type":"object","required":["chainId","blockNumber","unixTimestamp","validUntilBlock"],"properties":{"chainId":{"type":"integer"},"blockNumber":{"type":"integer"},"baseFeePerGas":{"type":["string","null"]},"unixTimestamp":{"type":"integer"},"blockTimestamp":{"type":"string"},"validUntilBlock":{"type":"integer"}}},"pricing":{"type":"object"},"verdict":{"enum":["allow","review","block"]},"receiptUrl":{"type":"string"},"capabilityId":{"const":"chain.snapshot"},"invocationId":{"type":"string"}}}}}}},"responseSchema":null,"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_hpjxySVhN8w6S5lqQ5dYU","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":"Returns the current Base blockchain state — block number, timestamp, base fee, and suggested gas fees — in a single no-parameter call.","exampleAgentPrompt":"Give me a snapshot of the current Base chain state — latest block number, timestamp, and gas fees right now.","exampleUseCases":null,"resultDescription":"Returns a JSON object with chainId, blockNumber, unixTimestamp, blockTimestamp, baseFeePerGas, validUntilBlock, and suggested gas fees for the current Base chain state, along with a capabilityId, invocationId, verdict (allow/review/block), pricing details, and a receipt URL.","failureModes":["Chain node unavailable — upstream RPC error, no block data returned","Payment not accepted — x402 payment rejected or quote expired","Rate limit exceeded — too many rapid calls","Invalid quote ID — optional quote parameter is malformed or already used"],"whenToPreferThis":"Use this endpoint when you need a fast, cheap, single-call snapshot of Base chain state (block number, timestamp, fees) without constructing a full RPC call — especially useful for bootstrapping or testing an x402 payment loop, or when you need current gas conditions before submitting a transaction on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:41:20.266Z","isFirstParty":false}