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 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 100.0% uptime

💰 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 wallet.openverbs.com from $0.0040

wallet.openverbs.com · wallet.openverbs.com

Normalise an address to its canonical form — Ethereum to its EIP-55 checksummed form, bech32 Bitcoin to lowercase (base58check is left untouched as it is case-sensitive). An address that is not a vali…

💰 Paid API api.nativebtc.org from $0.0050

api.nativebtc.org · api.nativebtc.org

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

0.0% uptime

💰 Paid API finance-api.kdlcfa.workers.dev from $0.0100

finance-api.kdlcfa.workers.dev · finance-api.kdlcfa.workers.dev

Bitcoin (BTC-USD) spot price, delayed, via Yahoo Finance

💰 Paid API Payment-Verifier from $0.0050

payment-verifier.relayhop.workers.dev · payment-verifier.relayhop.workers.dev

x402-protected paid API on payment-verifier.relayhop.workers.dev (discovered via Coinbase facilitator).

0.0% uptime

💰 Paid API chainsscope.duckdns.org from $0.0020

chainsscope.duckdns.org · chainsscope.duckdns.org

Current network fee conditions -- gas price (ETH/Base/Arbitrum/Optimism/Polygon), sat/vB fee tiers (Bitcoin), or recent prioritization fees (Solana) -- useful for an agent about to construct a transac…

0.0% uptime

💰 Paid API bitcoin.x420.dev from $5.0000

bitcoin.x420.dev · bitcoin.x420.dev

Buy custom USDC amount worth of BITCOIN tokens 0xc41338b5Aff79e763c91ef550D15e1Cf92D64b07

1 skills 0.0% uptime

💰 Paid API payment-verifier-cdp.relayhop.workers.dev from $0.0050

payment-verifier-cdp.relayhop.workers.dev · payment-verifier-cdp.relayhop.workers.dev

Real-time on-chain payment verification and check via Base RPC. Returns structured signals: verified status, amount, sender, recipient, transaction confirmation, block number. Pay $0.005 USDC per chec…

1 skills 0.0% uptime

A2A Satoshidata Agent API signed

satoshidata.ai · satoshidata.ai · A2A 1.0

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

A2A ChainFX Agent Pay

api.chainfx.store · ChainFX

Stablecoin-funded real-world payments for autonomous agents.

streaming 11 skills 100.0% uptime

A2A ChainFX Agent Pay

chainfx-payment-core-production.up.railway.app · ChainFX

Stablecoin-funded real-world payments for autonomous agents.

streaming 11 skills 100.0% uptime

A2A x402

docs.x402.org · x402 · A2A 0.3

1 skills 100.0% uptime

💰 Paid API payment-recon.krimskrams.xyz from $0.1000

payment-recon.krimskrams.xyz · payment-recon.krimskrams.xyz

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 12.0% uptime

A2A x402

coinbase-5dac824f.main-kill-isr.mintlify.me · x402 · A2A 0.3

1 skills 100.0% uptime

💰 Paid API Satoshi API live from $0.0050

cdp.bitcoinsapi.com · cdp.bitcoinsapi.com · A2A 0.3

Satoshi API is Bitcoin fee intelligence for AI agents. It gives wallets, bots, and agent workflows send-now-or-wait timing guidance, next-block fee pressure, transaction context, and fee-estimator acc…

4 skills 0.0% 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…

25 skills 100.0% uptime

💰 Paid API ChainQuery from $0.0050

intel.chainquery.com · intel.chainquery.com

Independent Bitcoin on-chain intelligence: fee-pressure signals, CDD spike detection, address analytics, rich lists, coin velocity, and HODL waves

0.0% uptime

A2A Satoshi API Bitcoin Fee Intelligence live

bitcoinsapi.com · Satoshi API · A2A 0.3

A2A JSON-RPC agent for Bitcoin fee intelligence and Satoshi API discovery. Use this service when a user or workflow needs a send-or-wait Bitcoin fee decision, mempool pressure context, x402-paid premi…

4 skills 0.0% uptime

💰 Paid API api.chit402.com from $0.0020

api.chit402.com · api.chit402.com

Paid inference via x402 USDC on Base and Solana. Cost-plus, quoted, receipted. POST /v1/chat/completions is the recommended surface. Returns signed receipt + public verify_url. Paying this host is rea…

💰 Paid API Proofwork-The402-Webhook from $0.0100

proofwork-the402-webhook.phase-voice.workers.dev · proofwork-the402-webhook.phase-voice.workers.dev

Verify an exact Circle USDC payment from a Base-mainnet transaction receipt and finalized chain evidence

A2A HORIZON SHIELD JIDEC live signed

jidec.horizonshield.dev · The HORIZONs株式会社 · A2A 0.3.0

Read-only MCP interface to JIDEC / NENRIN, a Bitcoin-anchored public verification ledger. Tools list recorded verification paths, cite individual records by SHA-256, and explain how to recompute every…

4 skills 100.0% uptime

A2A DEUSPROOF live signed

deusproof.com · DEUSPROOF · A2A 1.0

Forensic notary for AI agents. Ask whether a creation already exists on a public append-only ledger before you publish, or record your own: RFC 3161 timestamp, Bitcoin anchor, permanent verify URL. Pr…

6 skills 100.0% uptime