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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

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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]
WebberSites Data & Tools API
[verified] [L402+x402] [live] 2 sats/per-request [-----] (0)
webbersites-data-tools-api
75 pay-per-call endpoints for AI agents: LLM inference (no API key), SEO/schema/accessibility audits, web scraping & extraction, image generation & vectorization, crypto prices, DNS/geo/email intel, uptime monitoring, exact math/stats/finance, code lint, QR/barcodes, and wallet-owned agent memory. Dual rail: USDC on Base (x402) on every 402; Bitcoin Lightning (L402) when you opt in with the X-Pay-With: l402 header. Catalogs: /.well-known/l402.json and /openapi.json. Human docs + live 2-sat demo: https://l402.webbersites.com
#data #tools
Lightning Faucet Mempool Heatmap
[L402] [live] 30 sats/per-request [*****] (1)
lightning-faucet-mempool-heatmap
Bitcoin mempool visualization data as a fee-rate heatmap. See pending transaction distribution. 30 sats.
#data #finance
2s.io
[x402] [live] 0 sats/per-request [-----] (0)
2s-io
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.
#ai/ml #data
Satring Ratings API
[verified] [L402+x402+MPP] [live] 10 sats/per-request [-----] (0)
satring-ratings-api
Read and submit ratings for any listed service. GET /:slug/ratings is free; POST is paywalled (10 sats / $0.01 USDC). Supports L402 and x402.
#search #data
Kronos Quant Signal API
[verified] [x402] [live] 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.
#data #finance
minia2a — x402 Agent Marketplace
[x402] [live] 0 sats/per-request [-----] (0)
minia2a-x402-agent-marketplace
#ai/ml #data
tako.com/api/mpp/v1/search/fast
[x402+MPP] [live] 0 sats/per-request [-----] (0)
tako-com-api-mpp-v1-search-fast
Added by scraper. Domain owners can authenticate for free to edit information.
#search #data
Lightning Faucet Fee Estimate
[L402] [live] 50 sats/per-request [*****] (1)
lightning-faucet-fee-estimate
Real-time Bitcoin on-chain fee estimates for multiple confirmation targets. 50 sats.
#data #finance
BitTuitive
[L402] [live] 10 sats/per-request [-----] (0)
ittuitive
₿itTuitive is a Decentralized Data Hub for AI agents. Real-time price, on-chain metrics, Lightning Network stats, and mining revenue via L402 micropayments. No API keys, no KYC. Free status checks on data endpoint.
#data #finance
www.x402scan.com/api/x402/registry/origin
[x402] [live] 0 sats/per-request [-----] (0)
www-x402scan-com-api-x402-registry-origin
Added by scraper. Domain owners can authenticate for free to edit information.
#data #search
Satring Service Health Analytics
[verified] [L402+x402+MPP] [live] 50 sats/per-request [-----] (0)
satring-service-health-analytics
Per-service health report: uptime percentage, avg latency, probe history. Paywalled (50 sats / $0.025 USDC). Supports L402 and x402.
#data #search
Bitcoin Benji API
[verified] [L402] [live] 10 sats/per-request [-----] (0)
bitcoin-benji-api
L402-gated APIs: real-time Bitcoin mempool intelligence + AI inference (summarize, sentiment, translate, code review, data extraction, classify, rewrite, explain). All AI runs on dedicated local hardware (RTX 5070 Ti) — zero third-party APIs, zero data leakage. 16 paid endpoints from 5-50 sats per call. Dramatically cheaper than alternatives.
#ai/ml #data
agenthealthmonitor.xyz/ahs/batch
[x402] [live] 0 sats/per-request [-----] (0)
agenthealthmonitor-xyz-ahs-batch
Added by scraper. Domain owners can authenticate for free to edit information.
#identity #data
fetcher.sh — Twitter, TikTok, Instagram & Web Data APIs
[x402] [live] 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.
#social #data
agenthealthmonitor.xyz/ahs/route/policy
[x402] [live] 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 Node Info
[L402] [live] 30 sats/per-request [*****] (1)
lightning-faucet-node-info
Query Lightning Network node info by pubkey. Returns alias, capacity, channels, and features. 30 sats.
#data
Satring Bulk Export
[verified] [L402+x402+MPP] [live] 5000 sats/per-request [-----] (0)
satring-bulk-export
Export the full service directory as JSON in a single request. Paywalled (5000 sats / $2.50 USDC). Supports L402 and x402.
#data #tools
api.nansen.ai/api/v1/profiler/perp-trades
[x402] [live] 0 sats/per-request [-----] (0)
api-nansen-ai-api-v1-profiler-perp-trades
Added by scraper. Domain owners can authenticate for free to edit information.
#finance #data
Kevros Compliance Bundle
[L402+x402+MPP] [live] 75 sats/per-request [-----] (0)
governance-taskhawktech-com-governance-bundle
Generate a certifier-grade compliance evidence bundle. Hash-chained records, intent proofs, ML-DSA-87 (FIPS 204) on-chain plus SLH-DSA-256f (FIPS 205) witness-lane post-quantum attestations, verification instructions. $0.05 per request. Current Lightning sats price is published by the live L402 challenge. US customers only pending export classification.
#data #tools
api.nansen.ai/api/v1/tgm/dex-trades
[x402] [live] 0 sats/per-request [-----] (0)
api-nansen-ai-api-v1-tgm-dex-trades
Added by scraper. Domain owners can authenticate for free to edit information.
#finance #data
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