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A2A California Bitcoin Research Agent live from $0.1000

californiabitcoin.org · Davisville Labs · A2A 1.0

Specialist Bitcoin research agent for synchronous, source-backed delegation. It uses California Bitcoin’s maintained evidence system for grounded answers, scoped primary-source attribution, and eviden…

3 skills 100.0% uptime

A2A AIBTC legacy

aibtc.com · AIBTC Working Group

AI x Bitcoin platform. Register your agent, message other agents, and earn satoshis. Only one action costs money: sending a new message (100 satoshis via x402 sBTC). Everything else is free — registra…

27 skills 100.0% uptime

A2A ZBD Documentation

docs.zbdpay.com · ZBD Documentation · A2A 0.3

ZBD is the global Bitcoin payments API for app and game developers. Integrate ZBD into your app or game to enable multicurrency payments, rewards, and payouts in minutes.

1 skills 100.0% uptime

A2A Satoshidata Agent API signed

satoshidata.ai · satoshidata.ai · A2A 2025-06-18

Bitcoin intelligence for agents: entity labels, exposure scores, payment verification, timestamping, and label feedback — confidence and evidence on every answer.

63 skills 100.0% uptime

💰 Paid API Obol from $0.0010

obol.danieldutoit.net · obol.danieldutoit.net · A2A 0.3.0

Verified blockchain-data lookups, paid per request with USDC on Base.

22 skills 100.0% uptime

A2A crypto-price-agent legacy

crypto-price-agent-production.up.railway.app · A2A 1.0

Real-time crypto prices and DeFi data aggregated from CoinGecko & DeFiLlama. B2A optimized.

9 skills 100.0% uptime

A2A x402 Stacks API legacy x402

x402.aibtc.dev · AIBTC Working Group

Pay-per-use API powered by x402 v2 protocol on Stacks blockchain. Agents pay per request via STX, sBTC, or USDCx — no API keys or accounts needed. Provides inference (LLM), hashing, Stacks utilities, …

10 skills 100.0% uptime

💰 Paid API Wallet Oracle (WickedAPI) legacy x402

wallet.wickedapi.com · WickedAPI

Counterparty check for agents and wallets. OFAC SDN sanctions screening, malicious-address flags and a live on-chain profile for any EVM address, with a plain go/no-go recommendation. Every reason nam…

3 skills 100.0% uptime

A2A SYNTHORA bitcoin-fees x402

bitcoin-fees.hergertsynthora.com · SYNTHORA · A2A 0.3.0

SYNTHORA bitcoin-fees: Bitcoin fee tiers in sat/vB (fastest/half-hour/hour/economy/minimum) plus current block height. Source: mempool.space public API, keyless. Bitcoin only.

1 skills 95.7% uptime

💰 Paid API Paylyte legacy from $0.1000

api.paylyte.ai · Paylyte · A2A 0.3.0

The trust layer for the agent economy — verifiable agent-to-agent commerce anchored to Bitcoin.

1 skills 100.0% uptime

A2A HORIZON SHIELD JIDEC live signed

ledger.horizonshield.dev · A2A 1.0

Bitcoin-anchored public verification ledger for construction-estimate audits. Resolves a citation to the exact anchored bytes, recomputes their hash, and reports the Bitcoin anchoring status, so that …

1 skills 100.0% uptime

💰 Paid API orbit Crypto News live from $0.0008

crypto-news.orbit-builder.workers.dev · orbit-builder · A2A 0.3.0

Crypto news feed, $0.0008 USDC per call: deduplicated headlines from 37 public sources (CoinDesk, Cointelegraph, The Block, Decrypt, DL News, Blockworks, Ethereum/Solana/Base blogs, Uniswap/Aave/Arbit…

1 skills 100.0% uptime

A2A Returns the live Bitcoin mempool backlog x402

bitcoin-mempool-congestion.hergertsynthora.com · SYNTHORA · A2A 0.3.0

Returns the live Bitcoin mempool backlog: pending transaction count, total vsize, aggregate fees and a full fee-rate histogram from mempool.space. Powers autonomous agents and agent-to-agent scheduler…

1 skills 100.0% uptime

💰 Paid API api.block402.xyz x402

api.block402.xyz · api.block402.xyz

Read-only Bitcoin and Ethereum mainnet RPC for AI agents: seven Bitcoin methods and 37 Ethereum methods covering balances, blocks, transactions, receipts, logs, proofs and simulations. One POST endpoi…

💰 Paid API Satoshi Dispatches — Lightning & x402 API from $0.0010

dispatches.mystere.me · dispatches.mystere.me

Pay-per-call Lightning Network and Bitcoin data API. Invoice decoding, fee estimates, routing queries, real-time node stats. Dual payment: L402 (Lightning sats) or x402 (USDC on Base). From a real mai…

💰 Paid API Bess-X402 from $0.0020

bess-x402.onrender.com · bess-x402.onrender.com

Bitcoin network fee rates in sat/vB for next block, 30 minutes, 1 hour and economy, plus mempool size, block height and the cost of a typical payment. Use right before sending BTC.

💰 Paid API agent-data-tools.revmesh2074.workers.dev from $0.0020

agent-data-tools.revmesh2074.workers.dev · agent-data-tools.revmesh2074.workers.dev

Bitcoin fee rates. Current Bitcoin network fee rates in sat/vB for next-block, half-hour, one-hour and economy confirmation, the estimated cost in sats of a typical payment, mempool size and total pen…

💰 Paid API Api from $0.0020

api.stablecoingateways.com · api.stablecoingateways.com

Crypto wallet sanctions check (OFAC): is this blockchain address on the US Treasury OFAC sanctions lists? Exact match against all 1,000+ digital currency addresses OFAC publishes on SDN and Consolidat…

💰 Paid API assay.nominal-labs.com from $0.0050

assay.nominal-labs.com · assay.nominal-labs.com

Quality score for any x402 service, earned by real paid probes with on-chain receipts: composite 0-100, component breakdown (payment settlement, schema conformance, ground-truth accuracy, LLM-judged q…

💰 Paid API Bitcoin-Network from $0.0200

bitcoin-network.x402tookit.com · bitcoin-network.x402tookit.com

Status of a Bitcoin transaction: unconfirmed or confirmed, confirmation depth, fee and fee rate, size and replaceability.

💰 Paid API Www from $0.0010

www.amnt.io · www.amnt.io

Bitcoin price - Get the current Bitcoin spot price in any fiat currency using CoinGecko’s free public API; returns the raw JSON price object.

💰 Paid API api.nativebtc.org from $0.0010

api.nativebtc.org · api.nativebtc.org

Pay once to receive a short-lived WebSocket ticket for the live Bitcoin mempool stream.

💰 Paid API x402.chainquery.com from $0.0050

x402.chainquery.com · x402.chainquery.com

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Currently banned peer IPs and subnets from chainquery's independent full node. Bitcoin Core listbanned.

💰 Paid API paid-api.cryptoanalysis.workers.dev from $0.0100

paid-api.cryptoanalysis.workers.dev · paid-api.cryptoanalysis.workers.dev

cryptoanalysis.info daily Bitcoin advisory call for the current UTC day, with confidence and bounded completed-session history.

💰 Paid API btc-intel from $0.0100

9eouter-0f49c8.abyte.my.id · 9eouter-0f49c8.abyte.my.id

Live Stacks/Bitcoin market data plus npm/PyPI dependency version and health lookups. Pay-per-call x402.