{"uid":"cap_zmuuavK0fFbRR6oDA6Ixp","slug":"signal-nodus-credit-registration-04b3c49f","name":"Signal Nodus Credit Registration","description":"Signal Nodus: year-over-year diffs of SEC filing sections, pinned to accession numbers. The diff is the product; raw data is the on-ramp.","url":"https://api.signalnodus.ai/v1/credit","method":"GET","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"note":"settling the 402 IS the registration; no account exists","credit":"$10.00","api_key":"sn_live_..."}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"9","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":"$9/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"9","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"9","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_XB3E7qXAfS09hjJRCGenP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"9","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Registers a new Signal Nodus account by settling an x402 payment, returning an API key and credit balance for accessing SEC filing year-over-year diff data.","exampleAgentPrompt":"I want to start using Signal Nodus to pull year-over-year diffs of SEC filing sections — go ahead and register me by settling the 9 USDC payment so I get an API key and $10 in credit.","exampleUseCases":[{"title":"First-time SEC diff API access","prompt":"Register me for Signal Nodus by paying the 9 USDC fee so I get an API key and can start pulling year-over-year diffs of SEC filing sections right away."},{"title":"Automated agent self-provisioning","prompt":"My research agent needs access to Signal Nodus's SEC filing diff API — settle the 9 USDC x402 payment and return the API key so the agent can start querying without any manual account setup."},{"title":"Credit balance top-up via new key","prompt":"I need a fresh Signal Nodus API key with $10 in credit to run more SEC filing comparisons — go ahead and pay the 9 USDC registration fee and give me the new key."}],"resultDescription":"Returns a JSON object containing a confirmation note that payment settlement constitutes registration (no separate account creation needed), a starting credit balance (e.g. '$10.00'), and a live API key (prefixed 'sn_live_') that can be used to query Signal Nodus's SEC filing year-over-year diff endpoints.","failureModes":["Payment not settled — no API key or credit returned if the x402 payment fails or is rejected","Insufficient USDC balance — payment cannot be processed if the caller lacks the required 9 USDC","Network timeout — payment may be in-flight but response not received, risking duplicate payment attempts","Invalid payment channel — x402 protocol misconfiguration results in 402 response without fulfillment"],"whenToPreferThis":"Use this endpoint when you need to provision a new Signal Nodus API key and initial credit balance to access SEC filing year-over-year diff data. This is the entry point for the Signal Nodus platform; there is no separate account sign-up flow — settling the x402 payment IS the registration. Prefer this over manual account creation portals when building automated agent workflows that need self-provisioning access to SEC filing comparative analysis.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:30:08.978Z","isFirstParty":false}