# Services from obol-x402.fly.dev on Zero

> obol-x402.fly.dev serves 44 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/obol-x402.fly.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/obol-x402.fly.dev/health.json

## Services

- [EVM Token Safety & Rug-Risk Report (Base Chain)](https://www.zero.xyz/c/evm-token-safety-rug-risk-report-base-chain-db567817/llms.txt): $0.1/call via x402. Returns a comprehensive token safety report for any EVM token contract on Base, including honeypot detection, rug-pull risk signals, ownership analysis, and a composite risk score.
- [Bitcoin Fee Rate Tiers (obol-x402)](https://www.zero.xyz/c/bitcoin-fee-rate-tiers-obol-x402-b3d9690e/llms.txt): $0.01/call via x402. Returns current Bitcoin recommended fee rates in sat/vB across five tiers: next-block, 30-min, 1-hour, economy, and minimum — with Ed25519 cryptographic signature on every response.
- [Obol Bitcoin Block Anomaly Detector](https://www.zero.xyz/c/obol-bitcoin-block-anomaly-detector-afae1e3d/llms.txt): $0.01/call via x402. Detects and returns on-chain anomaly signals for a specific Bitcoin block height, including fee-exceeds-subsidy, empty block, difficulty retarget, timestamp inversion, long block gap, and coinbase message anomalies.
- [Bitcoin Address Behavioral Fingerprint & Counterparty Classifier](https://www.zero.xyz/c/bitcoin-address-behavioral-fingerprint-counterparty-classifier-48b5cd03/llms.txt): $0.1/call via x402. Classifies a Bitcoin address by its on-chain behavioral role (vault, exchange/hot-wallet, consolidator, distributor, whale, or ordinary wallet) with balance, throughput, and role-mix analytics using the PLEXUS money-graph method.
- [Obol EVM Token Launches with Safety Verdict](https://www.zero.xyz/c/obol-evm-token-launches-with-safety-verdict-c046aa85/llms.txt): $0.05/call via x402. Returns fresh token launches from DexScreener enriched with liquidity/FDV/24h data and a GoPlus-fused safety verdict, across multiple EVM chains, with Ed25519-signed responses.
- [OBOL Bundle Intel — Pre-Trade Safety Verdicts for AI Agents](https://www.zero.xyz/c/obol-bundle-intel-pre-trade-safety-verdicts-for-ai-agents-af382e85/llms.txt): $0.25/call via x402. Returns a signed multi-signal intelligence bundle (rug/honeypot check, tax analysis, wallet risk, tx preflight, market regime) for tokens across Base, Ethereum, Arbitrum, Optimism, Polygon, BNB, and Robinhood Chain, paid per-call in USDC via x402.
- [OBOL Agent Trust — EVM Address Safety Verdict](https://www.zero.xyz/c/obol-agent-trust-evm-address-safety-verdict-4e1977f6/llms.txt): $0.1/call via x402. Returns a signed pre-trade safety verdict for an EVM wallet or token address, including risk score, concentration analysis, and actionable reasons.
- [Obol Multi-Asset Crypto Spot Prices](https://www.zero.xyz/c/obol-multi-asset-crypto-spot-prices-9baa26f6/llms.txt): $0.01/call via x402. Returns real-time USD spot prices for BTC, ETH, SOL, USDC, and USDT in a single call, with cross-exchange (Coinbase + Kraken) quotes, stale-price flags, and price-divergence indicators, all cryptographically signed with Ed25519.
- [Obol BTC Block Anomaly Detector – Latest Tip](https://www.zero.xyz/c/obol-btc-block-anomaly-detector-latest-tip-3a990a0f/llms.txt): $0.01/call via x402. Scans the current Bitcoin blockchain tip block for anomalies including fee-exceeds-subsidy, empty blocks, difficulty retargets, timestamp inversions, long block gaps, and unusual coinbase messages.
- [Bitcoin Market Regime Intelligence Digest](https://www.zero.xyz/c/bitcoin-market-regime-intelligence-digest-242561b2/llms.txt): $0.1/call via x402. Returns a synthesized Bitcoin market regime classification (calm/active-stress/mixed) derived from cross-exchange spot prices, fee/congestion trends, and block anomaly state, with a plain-language decision read.
- [Bitcoin Fee Exceeds Subsidy Anomaly Detector](https://www.zero.xyz/c/bitcoin-fee-exceeds-subsidy-anomaly-detector-dbe45cb6/llms.txt): $0.01/call via x402. Checks whether Bitcoin transaction fees on the current chain tip exceed the block subsidy, flagging this rare anomaly with a cryptographically signed Ed25519 response.
- [Obol Bitcoin Broadcast-Timing Decision Feed](https://www.zero.xyz/c/obol-bitcoin-broadcast-timing-decision-feed-a5b6bbe5/llms.txt): $0.05/call via x402. Returns a real-time Bitcoin fee decision signal — including next-block fee estimate, fee trend, broadcast verdict (now/wait/wait briefly), mempool congestion, and BTC spot price — to help agents optimally time BTC transaction broadcasts.
- [Bitcoin Chain Tip Height](https://www.zero.xyz/c/bitcoin-chain-tip-height-53fa56ea/llms.txt): $0.01/call via x402. Returns the current Bitcoin blockchain tip (latest block height), cryptographically signed with Ed25519 for independent verifiability.
- [Bitcoin Mempool Congestion & Broadcast Timing Advisor](https://www.zero.xyz/c/bitcoin-mempool-congestion-broadcast-timing-advisor-7e872718/llms.txt): $0.01/call via x402. Returns the current Bitcoin mempool congestion tier, a fee-spike flag, and an ok_to_broadcast/wait_or_pay_up recommendation for timing BTC transaction broadcasts.
- [Obol BTC Next-Block Fee Estimator](https://www.zero.xyz/c/obol-btc-next-block-fee-estimator-ce85707d/llms.txt): $0.01/call via x402. Returns a single Bitcoin next-block fee estimate in sat/vB for the fastest transaction confirmation
- [Bitcoin Mempool Backlog Stats](https://www.zero.xyz/c/bitcoin-mempool-backlog-stats-d8545a50/llms.txt): $0.01/call via x402. Returns real-time Bitcoin mempool telemetry including pending transaction count, backlog vsize, and estimated blocks to clear, with Ed25519 cryptographic signature on every response.
- [Obol Bitcoin Transaction Role Classifier](https://www.zero.xyz/c/obol-bitcoin-transaction-role-classifier-73c0617c/llms.txt): $0.1/call via x402. Classifies a Bitcoin transaction's money-movement role (consolidation, fan-out, or payment) and analyzes its position in Bitcoin's value-homophily graph using PLEXUS assortativity scoring.
- [Obol BTC/USD Spot Price Feed (Signed)](https://www.zero.xyz/c/obol-btc-usd-spot-price-feed-signed-0d8991e8/llms.txt): $0.01/call via x402. Returns the current Bitcoin spot price in USD, cryptographically signed with Ed25519 for independent verification.
- [Obol EVM Address Risk Profile / Wallet Security Check](https://www.zero.xyz/c/obol-evm-address-risk-profile-wallet-security-check-81b3122a/llms.txt): $0.1/call via x402. Returns a risk profile and safety verdict for any EVM address on Base, including contract vs EOA detection, transaction activity, ETH balance, dormancy flags, proxy detection, and a risk score.
- [Honeypot Check – EVM Token Sell Simulation](https://www.zero.xyz/c/honeypot-check-evm-token-sell-simulation-73e7a730/llms.txt): $0.15/call via x402. Simulates whether an EVM token can actually be sold after purchase, detecting honeypot traps and measuring exact sell tax across multiple chains using KyberSwap round-trip simulation fused with honeypot.is/GoPlus per-chain analysis.
- [OBOL Bitcoin Address Forensics (x402)](https://www.zero.xyz/c/obol-bitcoin-address-forensics-x402-abc325d2/llms.txt): $0.1/call via x402. Returns Bitcoin address forensics including money-graph role, whale/exchange fingerprinting, Satoshi-era provenance, and anomaly detection — Ed25519-signed, paid per-call via USDC on Base.
- [OBOL EVM Calldata Guard — Pre-Sign Safety Verdict](https://www.zero.xyz/c/obol-evm-calldata-guard-pre-sign-safety-verdict-b0c8fafa/llms.txt): $0.05/call via x402. Decodes and audits raw EVM transaction calldata before signing, flagging unlimited approvals, drain-in-multicall, and setApprovalForAll attacks with a signed BLOCK/ALLOW policy verdict.
- [OBOL BTC Patoshi Block Analysis](https://www.zero.xyz/c/obol-btc-patoshi-block-analysis-902ba873/llms.txt): $0.1/call via x402. Returns Bitcoin forensic analysis for a specific block height, identifying Patoshi (Satoshi-era) mining patterns, whale/exchange fingerprinting, and validation-gated anomalies.
- [Obol Trader Bundle: Bitcoin Fees + Multi-Asset Spot Prices](https://www.zero.xyz/c/obol-trader-bundle-bitcoin-fees-multi-asset-spot-prices-1c576e5a/llms.txt): $0.15/call via x402. Returns a combined payload of Bitcoin mempool/fee data and USD spot prices for BTC, ETH, SOL, USDC, and USDT with cross-exchange divergence flags in a single call.
- [scrape-read-webpage-url-to-markdown](https://www.zero.xyz/c/scrape-read-webpage-url-to-markdown-b124d9c0/llms.txt): $0.005/call via x402. Fetches any public webpage and returns the main content as clean markdown with the page title, stripping boilerplate, navigation, and ads using trafilatura.
- [Obol BTC/USD Spot Price with Cross-Exchange Divergence Check](https://www.zero.xyz/c/obol-btc-usd-spot-price-with-cross-exchange-divergence-check-fcba2828/llms.txt): $0.01/call via x402. Returns the current Bitcoin BTC/USD spot price sourced from Coinbase and Kraken, with a divergence flag if the two exchanges disagree significantly.
- [Obol ETH/USD Spot Price with Cross-Exchange Divergence Check](https://www.zero.xyz/c/obol-eth-usd-spot-price-with-cross-exchange-divergence-check-aa5882c1/llms.txt): $0.01/call via x402. Returns the current ETH/USD spot price by cross-checking Coinbase and Kraken, with a divergence flag if the two exchanges disagree significantly.
- [Obol SOL/USD Spot Price (Signed, Cross-Exchange)](https://www.zero.xyz/c/obol-sol-usd-spot-price-signed-cross-exchange-1c8858da/llms.txt): $0.01/call via x402. Returns the current Solana (SOL) spot price in USD, cross-checked between Coinbase and Kraken, with a divergence flag and Ed25519 cryptographic signature for independent verification.
- [Obol USDC/USD Spot Price Feed](https://www.zero.xyz/c/obol-usdc-usd-spot-price-feed-757b70dd/llms.txt): $0.01/call via x402. Returns the current USDC/USD spot price aggregated from Coinbase and Kraken, with a divergence flag and cryptographic Ed25519 signature on every response.
- [Obol USDT/USD Spot Price Feed](https://www.zero.xyz/c/obol-usdt-usd-spot-price-feed-d884f579/llms.txt): $0.01/call via x402. Returns a cryptographically signed USDT/USD spot price quote aggregated from Coinbase and Kraken, including a stablecoin peg divergence flag.
- [text-embeddings-vector-api](https://www.zero.xyz/c/text-embeddings-vector-api-bbf9c166/llms.txt): $0.002/call via x402. Generates 768-dimensional text embeddings (nomic-embed-text model) on self-hosted GPU, returning OpenAI-shaped [{index, embedding}] vectors for single or batch (up to 16) inputs, cryptographically signed with Ed25519.
- [web-search-metasearch-api](https://www.zero.xyz/c/web-search-metasearch-api-965edd3a/llms.txt): $0.01/call via x402. Performs a metasearch query across DuckDuckGo and Hacker News, merging and deduplicating results into a single response with title, URL, and snippet per result.
- [OBOL EVM Transaction Preflight Simulator](https://www.zero.xyz/c/obol-evm-transaction-preflight-simulator-26df1d4e/llms.txt): $0.1/call via x402. Simulates an EVM transaction before execution to predict success, revert reason, and gas estimate as a pre-trade safety verdict
- [OBOL Bitcoin Block Signal — Pre-Trade Safety Verdict for Block Height](https://www.zero.xyz/c/obol-bitcoin-block-signal-pre-trade-safety-verdict-for-block-height-947c61cc/llms.txt): $0.01/call via x402. Returns a safety signal or forensic verdict for a given Bitcoin block height, including Satoshi-era provenance, validation-gated anomalies, and money-graph intelligence.
- [Bitcoin Coinbase Message Anomaly Detector (Latest Block)](https://www.zero.xyz/c/bitcoin-coinbase-message-anomaly-detector-latest-block-a3adae3c/llms.txt): $0.01/call via x402. Checks the Bitcoin chain tip for coinbase message anomalies, returning a cryptographically signed (Ed25519) detection result for forensic and monitoring agents.
- [Bitcoin Difficulty Retarget Anomaly Detector (Latest Block)](https://www.zero.xyz/c/bitcoin-difficulty-retarget-anomaly-detector-latest-block-048d32d2/llms.txt): $0.01/call via x402. Checks the current Bitcoin chain tip for difficulty retarget anomalies and returns a cryptographically signed detection result
- [Bitcoin Empty Block Anomaly Detector (Chain Tip)](https://www.zero.xyz/c/bitcoin-empty-block-anomaly-detector-chain-tip-5ff77766/llms.txt): $0.01/call via x402. Checks the current Bitcoin chain tip for an empty block anomaly, returning a cryptographically signed forensic detection report.
- [Bitcoin Long Block Gap Anomaly Detector (Chain Tip)](https://www.zero.xyz/c/bitcoin-long-block-gap-anomaly-detector-chain-tip-9eb3e6c8/llms.txt): $0.01/call via x402. Checks the latest Bitcoin chain tip for an anomalously long gap between consecutive blocks and returns a signed anomaly detection result.
- [Obol Bitcoin Timestamp Inversion Anomaly Detector](https://www.zero.xyz/c/obol-bitcoin-timestamp-inversion-anomaly-detector-16373e37/llms.txt): $0.01/call via x402. Checks the current Bitcoin chain tip for timestamp inversion anomalies, returning a cryptographically signed result verifiable via Ed25519 public key
- [Bitcoin Patoshi Early-Miner Provenance Check](https://www.zero.xyz/c/bitcoin-patoshi-early-miner-provenance-check-8371226b/llms.txt): $0.1/call via x402. Checks whether a given Bitcoin block height falls within the Patoshi-dominant early-miner period and returns a nonce-pattern fraction, provenance verdict, and confidence score for Satoshi-era attribution.
- [OBOL Desk Brief — Full Market Intelligence Bundle](https://www.zero.xyz/c/obol-desk-brief-full-market-intelligence-bundle-772125fe/llms.txt): $0.45/call via x402. Returns a single Ed25519-signed bundle covering Bitcoin market regime, broadcast-timing pulse, tip anomaly scan, multi-asset spot prices, machine action policy (ok_to_act/hold/wait/recheck), and 7-chain gas weather in one paid API call.
- [OBOL Loop Risk — Pre-Trade Safety Verdict for AI Agents](https://www.zero.xyz/c/obol-loop-risk-pre-trade-safety-verdict-for-ai-agents-66e80455/llms.txt): $0.3/call via x402. Returns a signed safety verdict for a DeFi transaction loop, including token rug/honeypot risk, calldata guard, and wallet risk checks before executing a trade.
- [Bitcoin Coinbase ScriptSig Cultural Archaeology — Obol TIMECHAIN Dig](https://www.zero.xyz/c/bitcoin-coinbase-scriptsig-cultural-archaeology-obol-timechain-dig-976d42e7/llms.txt): $0.01/call via x402. Retrieves curated Bitcoin coinbase scriptSig messages with cultural and historical context, covering notable inscriptions like Matrix campaigns, Munger quotes, and carbon-negative miner statements, cryptographically signed per response.
- [OBOL Loop Trading Regime Monitor](https://www.zero.xyz/c/obol-loop-trading-regime-monitor-2ac37fc1/llms.txt): $0.2/call via x402. Returns the current trading loop regime and action policy (e.g. calm/ok_to_act) with a recommended recheck interval for AI agents executing on-chain trades

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

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