Discover / api.carbon-cashmere.de

api.carbon-cashmere.de

■ Challenge detected

Curated Bitcoin coinbase scriptSig messages (printable ASCII only). Pool tags, BIP-comment campaigns, political statements. Window up to 7d.

Listed price
$0.02
Challenge detected
9 of the last 9 checks
Median response
465 ms
Last checked
16 Oct, 23:40 UTC
In our index since
26 Sept 2026

Endpoint

curl -i https://api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages
# 402 Payment Required: pay with an x402 client (USDC on Algorand),
# then send the same request again with the payment attached.
33 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://api.carbon-cashmere.de/v1

  • GET/btc-derivatives/blocks-rangeNo price listedBulk 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/taproot/ordinals/op_return stats, total output, coinbase reward).
  • GET/btc-derivatives/mining-economicsNo price listedBitcoin 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 hashrate, configurable ASIC efficiency and electricity cost, profit margin and breakeven price. Informational research data — not investment advice.
  • GET/bittensor-derivatives/subnet/:netuid/emission-trendNo price listedHourly emission and stake trend for a Bittensor subnet (window: 1h/24h/7d/30d). Derived from bittensor_metagraph snapshots. AI agent API for subnet-momentum tracking. Informational research data — not investment advice.
  • GET/kaspa-derivatives/dag-stateNo price listedKaspa BlockDAG topology snapshot: tips, sink, virtual chain, pruning point, blue scores. For DAG-state monitoring, side-branch detection, sync verification.
  • GET/kaspa-derivatives/mining-economicsNo price listedKaspa 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-aware emission rate, electricity-cost model with profit margin and breakeven price. Informational research data — not investment advice.
  • GET/kaspa-derivatives/mempool-pulseNo price listedKaspa mempool transaction count over time. AI agent API for mempool-state regime detection. Informational research data — not investment advice.
  • GET/bittensor-derivatives/registration-cost-historyNo price listedHourly Bittensor subnet registration activity (NeuronRegistered event count per subnet) + current burn-cost per subnet. Useful for predicting cheap-registration windows.
  • GET/kaspa-derivatives/supply-trendNo price listedKaspa circulating supply over time + emission rate + percent-mined. Captures accelerating geometric halving schedule. AI agent API for tokenomics tracking and supply-emission models. Informational research data — not investment advice.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 8 of 33 listed endpoints. First endpoints

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/api.carbon-cashmere.de

Recent checks

5 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026
All 9 checks
When (UTC)ResultHTTPResponse
16 Oct, 23:40 UTCChallenge detected402612ms
15 Oct, 19:10 UTCChallenge detected402579ms
14 Oct, 14:31 UTCChallenge detected402455ms
12 Oct, 10:53 UTCChallenge detected402465ms
10 Oct, 15:44 UTCChallenge detected402538ms
9 Oct, 09:34 UTCChallenge detected402416ms
8 Oct, 06:42 UTCChallenge detected402417ms
7 Oct, 03:32 UTCChallenge detected402413ms
5 Oct, 05:04 UTCChallenge detected402487ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 23:40 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for api.carbon-cashmere.de?

Its listed price is $0.02.

What payment terms does api.carbon-cashmere.de advertise?

The listing advertises x402, Algorand, Arbitrum, Base, EVM chain 480, Polygon, Solana, Stellar and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is api.carbon-cashmere.de listed?

In x402 Bazaar. Superstables first indexed it on 26 Sept 2026.

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