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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]

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

stabletravel.dev/api/seats-aero/availability

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

stabletravel-dev-api-seats-aero-availability

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

minia2a — x402 Agent Marketplace

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

minia2a-x402-agent-marketplace

CAPTCHA Solve — reCAPTCHA v2 Enterprise

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

captcha-solve-recaptcha-v2-enterprise

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

AsterPay is the trust, discovery and EUR-settlement layer for AI agent commerce. This endpoint returns a real-time USDC to EUR settlement estimate (exchange rate, fee, and SEPA Instant delivery in under 10 seconds) - the only x402 endpoint that settles stablecoins to EUR fiat. AsterPay also provides a KYA Trust Score (Know Your Agent: ERC-8004 agent identity plus sanctions screening, scored 0-100) so agents can verify a counterparty before paying, and merchant discovery to resolve a company name to verified IBAN/BIC. x402 and MPP are accepted on every paid endpoint. Supports USDC, EURC and EURCV across Base, Ethereum, Arbitrum, Optimism and Polygon. Operated by AELIRA LTD (Cyprus).

#finance #identity

Satring Analytics

[verified] [L402+x402+MPP] [confirmed] 500 sats/per-request [*****] (1)

satring-analytics

Aggregate stats across all listed services: totals, averages, top-rated, protocol breakdown. Paywalled (500 sats / $0.25 USDC). Supports L402 and x402.

Satring Reputation API

[verified] [L402+x402+MPP] [live] 100 sats/per-request [-----] (0)

satring-reputation-api

Detailed reputation report for a service: rating distribution, recent reviews, peer comparison. Paywalled (100 sats / $0.05 USDC). Supports L402 and x402.

#identity #search

Decision Anchor

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

decision-anchor

Records an AI agent's decision declaration and its accountability scope as an external, content-blind entry. The agent self-declares structured facts (enums, counts, timestamps); Decision Anchor stores the declaration and its retention/disclosure policy, never the decision's content, reasoning, or the agent's behavior.

stableupload.dev/api/site/renew

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

stableupload-dev-api-site-renew

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

#finance #storage

Pre-Swap Token Safety — ERC-20 Risk Scanner

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

pre-swap-token-safety-erc-20-risk-scanner

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

Semantic search for Telegram: search over 1M+ public channels, 170K+ public chats, 140K+ bots (continuously growing). Hybrid search using both vector embeddings and keywords with smart ranking. Search for similar channels/chats/bots by username. Receive from 100 to 1000 results depending on request. Docs: https://semagram.io/agent-api.md

#search #social

tako.com/api/mpp/v1/agent/runs

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

tako-com-api-mpp-v1-agent-runs

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

govlaws.ai/api/x402/resolve

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

govlaws-ai-api-x402-resolve

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

#finance #search

api.nansen.ai/api/v1/smart-money/pnl-leaderboard

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

api-nansen-ai-api-v1-smart-money-pnl-leaderboard

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

stableemail.dev/api/subdomain/inbox/messages/read

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

stableemail-dev-api-subdomain-inbox-messages-read

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

stablestudio.dev/api/generate/arrow-1.1/vectorize

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

stablestudio-dev-api-generate-arrow-1-1-vectorize

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

#storage #media

Kevros Media Attest

[L402+x402+MPP] [confirmed] 75 sats/per-request [-----] (0)

kevros-media-attest

Media attestation for AI agents. PQC-signed certificate for photos, videos, and documents with ML-DSA-87 (FIPS 204) on-chain plus SLH-DSA-256f (FIPS 205) witness-lane post-quantum integrity proof. Independently verifiable. $0.05 per attestation. Current Lightning sats price is published by the live L402 challenge. US customers only pending export classification.

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.

surf.cascade.fyi/api/v1/twitter/users/relationship

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

surf-cascade-fyi-api-v1-twitter-users-relationship

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

stableupload.dev/api/uploads

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

stableupload-dev-api-uploads

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

#identity #finance

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