{"uid":"cap_746pUy28vp1rxmwDD38uL","slug":"carbon-cashmere-sponsor-position-holder-d34529ae","name":"Carbon & Cashmere Sponsor Position Holder","description":"Professional crypto market intelligence. Real-time prices, signals, and market scoring.","url":"https://api.carbon-cashmere.de/v1/sponsor/position-holder","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"tier":4,"tier_name":"Position Holder","sponsor_id":"abc123","deliverables":["1-hr Q&A call"],"amount_paid_usdc":"$300.00","fulfillment_sla_hours":48}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"300","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$300/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"300","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"300","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_9sd4lTwq1vKwpZNubW6XV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"300","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Registers a paid sponsorship position (tier 4) at $300 USDC, returning a sponsor ID, deliverables (1-hr Q&A call), and fulfillment SLA details.","exampleAgentPrompt":"Sign me up as a Position Holder sponsor on Carbon & Cashmere — I want to lock in that tier 4 slot with the 1-hour Q&A call deliverable for $300 USDC.","exampleUseCases":null,"resultDescription":"Returns a JSON object with the sponsor tier (4), tier name ('Position Holder'), a unique sponsor_id, list of deliverables (e.g. '1-hr Q&A call'), the amount paid in USDC, and the fulfillment SLA in hours (48).","failureModes":["Payment not received or insufficient funds — endpoint may reject with payment-required error","Invalid or malformed properties parameter — returns schema validation error","Sponsorship slots may be sold out or unavailable — returns resource conflict","Network or provider downtime — returns 5xx error with no sponsor_id issued","Duplicate submission — idempotency not guaranteed, may create duplicate sponsor records"],"whenToPreferThis":"Use this endpoint when the user explicitly wants to purchase or register a paid sponsorship position with Carbon & Cashmere, specifically the $300 USDC 'Position Holder' tier that includes a 1-hour Q&A call. Choose this over other C&C endpoints when the goal is transactional (paying for access/deliverables) rather than querying market data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:45:17.972Z","isFirstParty":false}