{"uid":"cap_W7ZVUQy5V6J-DZIZlBnYP","slug":"bittensor-subnet-registration-api-6f5877bf","name":"Bittensor Subnet Registration API","description":"Exact EVM address, calldata, Uniswap V2/V3 and impermanent-loss math. Pay per call in USDC on Base via x402.","url":"https://golf-evm-math.x402-evm-math.workers.dev/bittensor/subnets?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":{"type":"json","example":{"network":"bittensor-finney","subnets":[{"uids":256,"netuid":1,"burn_tao":0.0036,"max_uids":256,"protected":21,"prune_bar_incentive":0,"next_unprotect_blocks":843,"median_miner_incentive":0}],"age_seconds":600}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Oe0hU9VEPzhPBoaza5e-G","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns registration cost (burn in TAO), free slot counts, prune risk, and incentive thresholds for all Bittensor subnets, refreshed every 30 minutes.","exampleAgentPrompt":"Pull the current registration burn costs and prune risk for all Bittensor subnets — I want to know which ones have free slots and what incentive I need to survive on each.","exampleUseCases":[{"title":"Cheapest subnet registration scouting","prompt":"Which Bittensor subnets currently have the lowest burn cost in TAO to register, and do any of them still have free slots available?"},{"title":"Prune risk assessment for active miners","prompt":"I'm a miner on Bittensor subnet 18 — what incentive do I need to maintain to avoid being pruned, and how many protected slots are there?"},{"title":"Automated registration cost monitoring","prompt":"Check all Bittensor subnet registration fees and alert me if any subnet's burn cost drops below 0.005 TAO or opens up free registration slots."}],"resultDescription":"Returns a JSON object with the network name (bittensor-finney), an array of subnet objects each containing: netuid, total UIDs, burn cost in TAO, max UIDs, number of protected slots, prune bar incentive threshold, blocks until next unprotect, and median miner incentive. Also includes age_seconds indicating how old the cached data is (refreshed every 30 minutes).","failureModes":["Stale data: cache may be up to 30 minutes old, real-time registration windows may differ","Network outage: if Bittensor Finney network is unreachable, endpoint may return error or empty subnet list","Payment failure: x402 payment of $0.015 USDC not fulfilled results in 402 response","Missing subnet: newly created subnets may not appear until next cache refresh","Rate limiting: excessive calls may be throttled by the Cloudflare Worker"],"whenToPreferThis":"Use this endpoint when you need a comprehensive, low-latency snapshot of registration economics across all Bittensor subnets simultaneously — burn costs, free slots, and prune thresholds in one call. Prefer this over on-chain queries when you don't need real-time precision and want to avoid RPC overhead. Ideal for agents making registration decisions, monitoring subnet health, or comparing subnet economics programmatically.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T06:35:42.870Z","isFirstParty":false,"canonicalSlug":"bittensor-subnet-registration-api-6f5877bf"}