api.carbon-cashmere.de
api.carbon-cashmere.de · 45 paid endpoints · listed 2026-10-27
Curated Bitcoin coinbase scriptSig messages (printable ASCII only). Pool tags, BIP-comment campaigns, political statements. Window up to 7d.
livelast check 27 h ago
100%valid x402 answers, 72 h
$0.04USDC received on Base, 7 days
1distinct payers, 7 days
52.1score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-price-history/:netuid Time-series of alpha-token price for a single Bittensor subnet (window: 1h/24h/7d/30d). Sourced from bittensor_alpha_prices captured every 10 minutes. AI agent | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-prices Latest alpha-token price per Bittensor subnet (TAO + USD). All 129 subnets in one call. AI agent API for cross-subnet price arbitrage, dTAO portfolio rebalancin | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/network-fundamentals Latest TAO network-wide fundamentals: total issuance, total stake, free float, supply percentage mined, stake ratio. Snapshot every 10 min. | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/registration-cost-history Hourly Bittensor subnet registration activity (NeuronRegistered event count per subnet) + current burn-cost per subnet. Useful for predicting cheap-registration | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/:netuid Per-subnet Bittensor snapshot: static metadata (modality/owner/burn/kappa/rho) + latest Tier-A metrics + current alpha-token price. Covers all 129 mainnet subne | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/:netuid/emission-trend Hourly emission and stake trend for a Bittensor subnet (window: 1h/24h/7d/30d). Derived from bittensor_metagraph snapshots. AI agent API for subnet-momentum tra | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/:netuid/validators Top-N validators ranked by incentive for tracked Bittensor subnets. Filter only validator_permit=true neurons. AI agent API for validator-selection and stake-de | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/blocks-range Bulk Bitcoin block extract (max 144 blocks per call, flat price per call). Returns array of per-block summaries (height, time, miner pool, tx count, witness/tap | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/blocks/:height Deep per-block Bitcoin extract. Returns miner-pool attribution, witness/taproot adoption %, Ordinals inscription count, OP_RETURN byte volume, fee percentiles ( | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages Curated Bitcoin coinbase scriptSig messages (printable ASCII only). Pool tags, BIP-comment campaigns, political statements. Window up to 7d. | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/diversity Bitcoin own-node peer-network diversity (IPv4/IPv6/Tor/I2P/CJDNS distribution) + privacy share. AI agent API for privacy researchers, node-operator tooling, net | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/fee-curve Bitcoin smart-fee curve for 1/3/6/12/24/144-block confirmation targets + trend classification (rising/stable/falling/surging) from 2h moving average. | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressure Bitcoin mempool pressure classification (low/medium/high/extreme) + fee buckets (0-1, 1-2, 2-5, 5-10, 10-20, 20-50, 50-100, 100-200, 200+ sat/vB) + RBF count + | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/ordinals-flow Hourly Bitcoin Ordinals inscriptions + OP_RETURN byte volume. Inscriptions detected via witness-envelope magic bytes ( cord). Window up to 7d. | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/blocks/:block_hash Single Kaspa block extract with full DAG topology (parents, selected-parent, blue/daa score, chain-block flag). AI agent API for DAG-aware indexers. Information | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/dag-state Kaspa BlockDAG topology snapshot: tips, sink, virtual chain, pruning point, blue scores. For DAG-state monitoring, side-branch detection, sync verification. | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/mempool-pulse Kaspa mempool transaction count over time. AI agent API for mempool-state regime detection. Informational research data — not investment advice. | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/recent-blocks Recent Kaspa blocks (max 144 per call = $1.44 cap). Optional chain_only flag to filter selected-parent chain blocks. AI agent API for backtesters and indexers. | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/subtensor-derivatives/block-metrics Recent per-block aggregation of Bittensor events: neuron_registrations, weight_sets, bond_sets, child_key_sets, stake_added/removed, root_claimed, balance_trans | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/subtensor-derivatives/events/:block_number All Bittensor substrate events for a single finalized block (event_idx, phase, module_id, event_id, attributes). AI agent API for detailed forensic analysis of | $0.02 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/coin-days-destroyed Hourly Bitcoin Coin Days Destroyed proxy (consolidation_ratio × fee_weight × volume) + whale-tx contribution. ⚠️ PROXY methodology — suitable for trend signals, | $0.03 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/miner-attribution Bitcoin mining-pool hashrate share derived from coinbase scriptSig parsing. Returns block-count + share % per pool for window (1h/24h/7d/30d), with explicit Unk | $0.03 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate Kaspa live fee market: priority/normal/low feerate buckets from the node's own estimator (Toccata RPC). Informational research data — not investment advice. | $0.03 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/supply-trend Kaspa circulating supply over time + emission rate + percent-mined. Captures accelerating geometric halving schedule. AI agent API for tokenomics tracking and s | $0.03 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/subtensor-derivatives/event-stream Filtered Bittensor substrate event stream from finalized blocks. Module/event filters supported. Captures events that disappear from public lite-node APIs. | $0.03 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/subtensor-derivatives/registration-pulse Bittensor NeuronRegistered count per hour. Tracks new neurons joining subnets — useful for detecting subnet growth/decay and registration-burn pressure. AI agen | $0.03 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/:netuid/metagraph Full metagraph snapshot for 13 tracked Bittensor subnets [1,3,4,13,15,18,26,56,62,64,91,120,123]: summary stats + all neurons with stake/incentive/dividends/emi | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/subnets-all Snapshot of all 129 Bittensor mainnet subnets — burn, neurons, owner, modality, alpha-price. For cross-subnet research and market-overview dashboards. | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/top-validators-cross-subnet Top-N validators per tracked Bittensor subnet, aggregated across all 13 focus subnets. One call returns the leaderboard across subnets. For cross-subnet validat | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/mining-economics Bitcoin mining economics from our own full node: hashprice (sats + USD per TH/s/day), subsidy plus measured 24h fee revenue per block, difficulty-cross-checked | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/whale-stream Bitcoin whale transaction feed (>10 BTC default) with fee-rate, RBF flag, ancestor-count enrichment. ⚠️ output_btc includes change-outputs — activity proxy, not | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/chain-color Kaspa blue/red block density (GHOSTDAG): merged (red) vs selected-chain (blue) block share — DAG-stress / orphan-rate proxy. Informational research data — not i | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/chain-density Kaspa chain-blocks (selected-parent chain) vs total DAG blocks per hour — measures BlockDAG branching activity. Chain ratio drift signals DAG-mode shifts. | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/fee-regime Kaspa fee-market regime: fee-bucket distribution incl. the sub-floor segment the Toccata minimum displaces. Informational research data — not investment advice. | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/mining-economics Kaspa mining economics from public Kaspa node snapshots (api.kaspa.org): KAS + USD revenue per TH/s/day, block subsidy measured live from coinbase payloads, DAG | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/network-hashrate Kaspa network hashrate (H/s) + difficulty trend from 5-minute snapshots of the public Kaspa node REST observer (api.kaspa.org). Post-fork mining-security teleme | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/timeseries Historical Kaspa network metrics as server-side aggregated timeseries (max 1000 points): hashrate, difficulty, DAG block rate, mempool depth, DAA score, tip cou | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/toccata-status Kaspa Toccata hardfork tracker: live activation distance, network-measured ETA, post-fork parameter reference. First-mover fork analytics from direct network me | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/subtensor-derivatives/evm-activity EVM-on-Bittensor Ethereum.Executed call count per hour. Tracks TaoEVM dApp adoption. AI agent API for cross-VM adoption analysts. Informational research data — | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/subtensor-derivatives/transfer-flow Bittensor BalancesTransfer count + total TAO volume per hour. AI agent API for TAO whale-watch and treasury-movement monitoring. Informational research data — n | $0.05 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/:netuid/coordination Neutral Bittensor subnet concentration & synchrony metrics: stake/emission concentration, validator dominance, update-synchrony with 7d comparison. Informationa | $0.10 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/bittensor-derivatives/subnet/:netuid/stake-flows dTAO stake-flow microstructure per subnet: per-neuron accumulation/distribution, net flow, concentration trend from months of continuous high-cadence snapshots. | $0.10 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/btc-derivatives/reorg-stream Bitcoin chain-tip orphan + valid-fork stream (10min cadence). For exchange confirmation-policy tuning, cross-chain bridge safety windows, finality auditors. bra | $0.10 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/kaspa-derivatives/throughput-health Kaspa throughput & DAG-width: chain-block rate, estimated total DAG rate, TPS vs multi-month pre-fork baseline — hardfork impact tracking. Informational researc | $0.10 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
| GET | api.carbon-cashmere.de/v1/subtensor-derivatives/weights-activity Bittensor WeightsSet + TimelockedWeightsCommitted/Revealed activity per hour. Tracks validator weight-setting cadence and the post-2025 anti-frontrun mechanism. | $0.10 | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, Polygon, Arbitrum, eip155:480, Base, Solana, stellar:pubnet |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 27 h ago | api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-prices | 402 | 146 | valid x402 v2 terms |
| 7 days ago | api.carbon-cashmere.de/v1/bittensor-derivatives/alpha-price-history/:netuid | 402 | 187 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-10-28 | 2 | $0.04 |
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