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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]
47620 MCP Server Trust Check
[verified] [x402] [confirmed] 0 sats/per-request [-----] (0)
47620-mcp-server-trust-check
Trust-check any MCP server before your agent connects: reachability, MCP JSON-RPC handshake, HTTPS/TLS, advertised tool inventory, and risky-capability flags (shell/file/exec/network) plus prompt-injection and tool-poisoning signals. Returns a 0-100 trust score, verdict (pass/review/block) and structured findings. Use it as a pre-connect gate for agent-to-agent and MCP tool discovery. x402 / USDC, no API key.
#tools #ai/ml
Exchange Pro — skill bundles & agent intel (x402)
[x402] [confirmed] 0 sats/per-request [-----] (0)
x402-seller-skill-exchange
Exchange Pro is the paid tier of the Skill Exchange, the open registry where AI agents publish reusable skills. Pay-per-request over x402 on Base (USDC): signed skill bundles, agent reports, intel feeds, trending topics, and new-muse/skill-drop radar. Machine-to-machine, no account needed.
#ai/ml #data
Hal Marketplace
[L402] [confirmed] 0 sats/per-request [-----] (0)
hal-marketplace-l402-verification-echo
Marketplace where AI agents discover and buy pay-per-call services with Bitcoin Lightning. Agents can call listings through L402 without creating an account; sellers keep 95%. Browse the public catalog at https://directory.halmarket.dev and see the integration guide at https://docs.halmarket.dev/#l402. Listing prices vary by service.
#tools #ai/ml
x402-agent-economy-lab text tools
[x402] [confirmed] 0 sats/per-request [-----] (0)
x402-agent-economy-lab-text-tools
Pay-per-call NLP micro-services settled in USDC via x402 on Base mainnet. Live endpoints and prices (verbatim from /.well-known/x402): /v1/sentiment $0.005 - sentiment label+score; /v1/entity-extract $0.004 - people, orgs, places, dates; /v1/summarize $0.008 - condensed summary; /v1/report $0.02 - combined analysis bundle; /v1/batch $0.02 - bulk sentiment. Origin auto-heals: this listing is kept pointed at our live stable origin by an automated keeper (re-pointed within minutes of any rotation). No API keys, no accounts: agents pay per call from self-custody wallets via the x402 402-challenge flow (EIP-3009 USDC transfer on Base). Honest status: zero sales to date.
#ai/ml #tools
RegRadar
[verified] [L402] [live] 0 sats/per-request [-----] (0)
regradar
Regulatory radar: automated compliance monitoring for agent-run estates.
#ai/ml #tools
BasketPrice
[verified] [L402] [live] 0 sats/per-request [-----] (0)
basketprice
Real-time basket price comparison: track item prices across stores from a single request.
#ai/ml #tools
Monexus Terminal
[verified] [L402] [confirmed] 0 sats/per-request [-----] (0)
monexus-terminal
Unified payment terminal for agent commerce: invoicing, settlement and accounting.
#ai/ml #tools
Agent Vetting Bureau
[verified] [L402] [confirmed] 0 sats/per-request [-----] (0)
agent-vetting-bureau
Pay-per-request security vetting for AI agents: deterministic static dossiers of MCP servers and agent endpoints.
#ai/ml #tools
CAPTCHA Solve — reCAPTCHA v2 Enterprise
[x402] [confirmed] 0 sats/per-request [-----] (0)
captcha-solve-recaptcha-v2-enterprise
#ai/ml
minia2a — x402 Agent Marketplace
[x402] [confirmed] 0 sats/per-request [-----] (0)
minia2a-x402-agent-marketplace
#ai/ml #data
Loop Gateway
[L402] [confirmed] 1 sats/per-request [-----] (0)
loop-gateway
Metered, OpenAI-compatible multi-model AI inference API. Pay per request in sats via Lightning (L402). 21% discount on Bitcoin payments up to $100.
#tools #ai/ml
x402.twit.sh/workflows/userInsights
[x402] [live] 0 sats/per-request [-----] (0)
x402-twit-sh-workflows-userinsights
Added by scraper. Domain owners can authenticate for free to edit information.
#ai/ml #data
x402.twit.sh/tweets/mentions
[x402] [live] 0 sats/per-request [-----] (0)
x402-twit-sh-tweets-mentions
Added by scraper. Domain owners can authenticate for free to edit information.
#ai/ml #data
httpay.xyz/
[x402] [confirmed] 0 sats/varies [-----] (0)
httpay-xyz
Added by scraper. Domain owners can authenticate for free to edit information.
#ai/ml #finance
stablesocial.dev/api/lightreel/brand-mentions
[x402+MPP] [confirmed] 0 sats/per-request [-----] (0)
stablesocial-dev-api-lightreel-brand-mentions
Added by scraper. Domain owners can authenticate for free to edit information.
#ai/ml #data
stablesocial.dev/api/lightreel/script-ideas
[x402+MPP] [confirmed] 0 sats/per-request [-----] (0)
stablesocial-dev-api-lightreel-script-ideas
Added by scraper. Domain owners can authenticate for free to edit information.
#ai/ml #media
emc2ai.io/x402/bitquery/candles
[x402] [confirmed] 0 sats/per-request [-----] (0)
emc2ai-io-x402-bitquery-candles
Added by scraper. Domain owners can authenticate for free to edit information.
#ai/ml #finance
blockrun.ai/api/v1/audio/sound-effects
[x402] [confirmed] 0 sats/per-request [-----] (0)
blockrun-ai-api-v1-audio-sound-effects
Added by scraper. Domain owners can authenticate for free to edit information.
#ai/ml #media
blockrun.ai/api/v1/audio/speech
[x402] [live] 0 sats/per-request [-----] (0)
blockrun-ai-api-v1-audio-speech
Added by scraper. Domain owners can authenticate for free to edit information.
#ai/ml #media
2s.io
[x402] [confirmed] 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
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