{"uid":"cap_B9ktd_nCG4ikRYehpprWr","slug":"underground-substrate-symposium-data-daily-8299bc94","name":"Underground Substrate Symposium Data Daily","description":"Signed daily traffic snapshot from a live x402 merchant endpoint. Pay $1.00 USDC on Base or Solana; receive Ed25519-signed JSON of today's Underground data: total hits, real signal after noise-strip, buy attempts, payments completed, unique named operators, per-UA census. CC0 for citation. Ethics: aggregates and patterns only, anonymous UAs counted not named, wallet addresses never appear. Cached 60s.","url":"https://underground.substratesymposium.com/api/data-daily?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"1","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":{"p10Cents":"100.0000","medianCents":"100.0000","p90Cents":"100.0000","minCents":"100.0000","maxCents":"100.0000","p95Cents":"100.0000","sampleCount":1,"varies":false,"failureChargeRate":1},"sessionDeposit":null,"pricing":{"kind":"static","summary":"$1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_LHkf5u0Bifsguuq7dhDLN","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a signed daily snapshot of Underground traffic metrics including total hits, buy attempts, completed payments, unique operators, and paid-attempt rate for today.","exampleAgentPrompt":"Pull today's signed daily snapshot from the Underground — I want to see total hits, completed payments, buy attempts, unique operators, and the paid-attempt rate.","exampleUseCases":[{"title":"Monitor agent economy health daily","prompt":"Grab today's Underground traffic snapshot and tell me if payment volume looks healthy — are we seeing more completed transactions and unique operators than yesterday?"},{"title":"Benchmark network activity metrics","prompt":"I need today's signed Underground report to compare against last week. Show me the total hits, buy attempts, and paid-attempt rate so I can see if adoption is trending up."},{"title":"Track paid-attempt conversion trends","prompt":"Pull the Underground's daily metrics for me and break down what percentage of buy attempts actually converted to completed payments today."}],"resultDescription":"A cryptographically signed daily snapshot containing aggregated Underground traffic metrics: total hits, real signal count, buy attempts, payments completed, unique named operators, and paid-attempt rate. No wallet addresses are included — aggregates only.","failureModes":["Payment not completed — endpoint returns 402 if $1 USDC payment via x402 is not provided","No data yet for today if called very early in the day","Network or server unavailability returns 5xx","Malformed request returns 400"],"whenToPreferThis":"Use this endpoint when you need a quick, authoritative, signed daily summary of Underground network activity — especially paid transaction volume and operator counts — without needing individual wallet-level detail. Ideal for monitoring agent economy health or benchmarking daily payment throughput.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:00:49.353Z","isFirstParty":false,"canonicalSlug":"underground-substrate-symposium-data-daily-8299bc94"}