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curated paid API directory for AI agents

₿ satring --list

Curated Paid API Directory for AI Agents

Discover paid APIs for your AI agents, via Lightning and USDC

cat> [all] [ai/ml] [data] [finance] [identity] [media] [search] [social] [storage] [tools]

filter> [all] [verified] [confirmed] [live] [down] [unknown]

proto> [all] [L402] [x402] [MPP]

sort> [popular] [newest] [top-rated] [cheapest] [most-reviewed]

Lightning Faucet Mempool Heatmap

[L402] [confirmed] 30 sats/per-request [*****] (1)

lightning-faucet-mempool-heatmap

Bitcoin mempool visualization data as a fee-rate heatmap. See pending transaction distribution. 30 sats.

[x402] [confirmed] 0 sats/per-request [-----] (0)

Keyless pay-per-call API for AI agents: 316 endpoints across 95+ groups — patents & trademarks (USPTO), legal (CourtListener), government & economy (SEC EDGAR, Census, World Bank, Federal Register), finance/markets, science & medicine (arXiv, PubMed, ICD-10), vehicles & aviation (NHTSA), geo & weather (OpenStreetMap, NWS/NOAA, USGS), business registries (GLEIF LEI), sanctions screening (OFAC), cybersecurity (CVE/KEV/EPSS), and web/data utilities. No signup, no API key: pay per request in USDC on Base or Solana via x402. Machine-readable OpenAPI, llms.txt, JSON-LD, MCP server card.

tako.com/api/mpp/v1/search/fast

[x402+MPP] [confirmed] 0 sats/per-request [-----] (0)

tako-com-api-mpp-v1-search-fast

Added by scraper. Domain owners can authenticate for free to edit information.

minia2a — x402 Agent Marketplace

[x402] [confirmed] 0 sats/per-request [-----] (0)

minia2a-x402-agent-marketplace

agenthealthmonitor.xyz/ahs/route/policy

[x402] [confirmed] 0 sats/per-request [-----] (0)

agenthealthmonitor-xyz-ahs-route-policy

Added by scraper. Domain owners can authenticate for free to edit information.

#identity #data

Lightning Faucet Timestamp

[L402] [confirmed] 10 sats/per-request [*****] (1)

lightning-faucet-timestamp

Trusted high-precision timestamp with current Bitcoin block height. 10 sats.

Kronos Quant Signal API

[verified] [x402] [confirmed] 0 sats/per-request [-----] (0)

kronos-quant-signal-api

Multi-asset financial intelligence API delivering ML-based price-path forecasts, trading signals, and calibration metrics for crypto, commodities, and pre-market equities. 32 paid endpoints via x402 protocol with USDC on Base and Solana. Per-request pricing from $0.001 to $0.05. No API keys required — agents pay per request and receive JSON forecasts with conformal prediction intervals.

api.nansen.ai/api/v1/tgm/perp-trades

[x402] [confirmed] 0 sats/per-request [-----] (0)

api-nansen-ai-api-v1-tgm-perp-trades

Added by scraper. Domain owners can authenticate for free to edit information.

api.nansen.ai/api/v1beta1/profiler/historical-transaction-lookup

[x402] [confirmed] 0 sats/per-request [-----] (0)

api-nansen-ai-api-v1beta1-profiler-historical-transaction-lookup

Added by scraper. Domain owners can authenticate for free to edit information.

api.nansen.ai/api/v1/prediction-market/top-holders

[x402] [confirmed] 0 sats/per-request [-----] (0)

api-nansen-ai-api-v1-prediction-market-top-holders

Added by scraper. Domain owners can authenticate for free to edit information.

api.nansen.ai/api/v1/perp-screener

[x402] [confirmed] 0 sats/per-request [-----] (0)

api-nansen-ai-api-v1-perp-screener

Added by scraper. Domain owners can authenticate for free to edit information.

fetcher.sh — Twitter, TikTok, Instagram & Web Data APIs

[x402] [confirmed] 0 sats/per-request [-----] (0)

fetcher-sh-twitter-tiktok-instagram-web-data-apis

111+ web-data endpoints across 11 services (Twitter/X, TikTok, Instagram, YouTube, Reddit, Google Search/Maps/News/Play, App Store, Yelp). $0.001–$0.05/call, paid via x402 or prepaid credits, no account/API key. Full catalog: /llms.txt, skill: /skill.md.

stabletravel.dev/api/transfers/cancel

[x402+MPP] [confirmed] 0 sats/per-request [-----] (0)

stabletravel-dev-api-transfers-cancel

Added by scraper. Domain owners can authenticate for free to edit information.

Lightning Faucet LNURL Metadata

[L402] [confirmed] 30 sats/per-request [*****] (1)

lightning-faucet-lnurl-metadata

Resolve and parse LNURL endpoints. Returns metadata, min/max amounts, supported features. 30 sats.

api.nansen.ai/api/v1/tgm/flows

[x402] [confirmed] 0 sats/per-request [-----] (0)

api-nansen-ai-api-v1-tgm-flows

Added by scraper. Domain owners can authenticate for free to edit information.

Bitcoin Mempool Congestion Forecast

[verified] [L402] [confirmed] 10 sats/per-request [-----] (0)

bitcoin-mempool-congestion-forecast

Predicts Bitcoin network congestion level and estimated wait times. Returns fee estimates for next block through this week.

api.nansen.ai/api/v1/prediction-market/ohlcv

[x402] [confirmed] 0 sats/per-request [-----] (0)

api-nansen-ai-api-v1-prediction-market-ohlcv

Added by scraper. Domain owners can authenticate for free to edit information.

api.nansen.ai/api/v1/tgm/jup-dca

[x402] [confirmed] 0 sats/per-request [-----] (0)

api-nansen-ai-api-v1-tgm-jup-dca

Added by scraper. Domain owners can authenticate for free to edit information.

api.nansen.ai/api/v1/prediction-market/position-detail

[x402] [confirmed] 0 sats/per-request [-----] (0)

api-nansen-ai-api-v1-prediction-market-position-detail

Added by scraper. Domain owners can authenticate for free to edit information.

api.nansen.ai/api/v1/prediction-market/orderbook

[x402] [confirmed] 0 sats/per-request [-----] (0)

api-nansen-ai-api-v1-prediction-market-orderbook

Added by scraper. Domain owners can authenticate for free to edit information.

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