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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 Base Gas Price
[verified] [x402] [live] 0 sats/per-request [-----] (0)
47620-base-gas-price
Live Base (eip155:8453) gas price right now: base fee plus priority fee (gwei) and fast/standard tiers. A primitive for agents deciding WHEN to submit a Base transaction. x402 / USDC on Base, no signup, no API key.
#tools #data
Hal Marketplace
[L402] [live] 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] [live] 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
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] [live] 0 sats/per-request [-----] (0)
monexus-terminal
Unified payment terminal for agent commerce: invoicing, settlement and accounting.
#ai/ml #tools
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
The Ark AI l
[L402] [live] 50 sats/per-request [-----] (0)
the-ark-ai-l
Pay-per-use AI services over Bitcoin Lightning (L402). 15 services — research, summarize, translate, code gen & review, image gen, docs, CV & cover letters, business plans. No signup, no API key, instant micropayments. Agent-to-agent ready.
#tools
loop-mcp
[L402] [live] 10 sats/per-request [-----] (0)
loop-mcp
L402-native MCP server for AI agents. 5 Bitcoin/Lightning tools: BTC price, fee send-decision, Lightning Address resolver, TX decoder, and optimal send window. Pay 10-25 sats per call. No API keys. Live at mcp.loopxxi.com/mcp
#tools #finance
tako.com/api/mpp/v1/answer
[x402+MPP] [live] 0 sats/per-request [-----] (0)
tako-com-api-mpp-v1-answer
Added by scraper. Domain owners can authenticate for free to edit information.
#tools
mpp.api.agentmail.to/v0/inboxes
[MPP] [live] 0 sats/per-request [-----] (0)
mpp-api-agentmail-to-v0-inboxes
Added by scraper. Domain owners can authenticate for free to edit information.
#tools
stabletravel.dev/api/reference/recommendations
[x402+MPP] [live] 0 sats/per-request [-----] (0)
stabletravel-dev-api-reference-recommendations
Added by scraper. Domain owners can authenticate for free to edit information.
#tools
tako.com/api/mpp/v1/thinviz/create
[x402+MPP] [live] 0 sats/per-request [-----] (0)
tako-com-api-mpp-v1-thinviz-create
Added by scraper. Domain owners can authenticate for free to edit information.
#tools
stabletravel.dev/api/flightaware/airports/id/delays
[x402+MPP] [live] 0 sats/per-request [-----] (0)
stabletravel-dev-api-flightaware-airports-id-delays
Added by scraper. Domain owners can authenticate for free to edit information.
#tools
l402-kit Demo API
[L402] [live] 1 sats/per-request [-----] (0)
l402-kit-demo-api
Full-stack L402 SDK for TypeScript, Python, Go, Rust. Monetize any API with Bitcoin Lightning in 3 lines. MCP server: npx l402-kit-mcp
#ai/ml #tools
Ollama LLM Inference (L402)
[L402] [live] 5 sats/per-request [-----] (0)
ollama-llm-inference-l402
Pay-per-request LLM inference via Lightning micropayments. Supports llama3 (5 sats) and qwen2.5:14b (15 sats). Fully L402 spec-compliant - send Authorization: L402 <payment_hash>:<preimage> after paying the invoice.
#ai/ml #tools
stabletravel.dev/api/reference/airline-routes
[x402+MPP] [live] 0 sats/per-request [-----] (0)
stabletravel-dev-api-reference-airline-routes
Added by scraper. Domain owners can authenticate for free to edit information.
#tools
stabletravel.dev/api/flightaware/airports/id/flights/arrivals
[x402+MPP] [live] 0 sats/per-request [-----] (0)
stabletravel-dev-api-flightaware-airports-id-flights-arrivals
Added by scraper. Domain owners can authenticate for free to edit information.
#tools
stabletravel.dev/api/flightaware/history/airports/id/flights/arrivals
[x402+MPP] [live] 0 sats/per-request [-----] (0)
stabletravel-dev-api-flightaware-history-airports-id-flights-arrivals
Added by scraper. Domain owners can authenticate for free to edit information.
#tools
stabletravel.dev/api/hotels/list/by-geocode
[x402+MPP] [live] 0 sats/per-request [-----] (0)
stabletravel-dev-api-hotels-list-by-geocode
Added by scraper. Domain owners can authenticate for free to edit information.
#tools
stabletravel.dev/api/hotels/offer
[x402+MPP] [live] 0 sats/per-request [-----] (0)
stabletravel-dev-api-hotels-offer
Added by scraper. Domain owners can authenticate for free to edit information.
#tools
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