Curated Paid API Directory for AI Agents

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

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

Echo your HTTP request headers back. Useful for debugging proxies, auth, and request inspection. 5 sats.

Cryptographic random entropy via Lightning. Get up to 1024 bytes of secure random data. 5-10 sats.

Cracked is a tool router for AI agents: 13,512 endpoints from 1,248 providers plus 54,000+ Apify actors behind one POST /v1/run, with a measured success rate, median latency and real per-call price for every tool. Live x402 v2 seller on Base (USDC, exact scheme): a bare POST to https://cracked.ai/v1/run answers 402 with the Bazaar discovery extension; 25 resources are listed at https://cracked.ai/.well-known/x402. Price per run is the provider price plus a $0.001 platform fee, quotes never below $0.01, and failed runs are never settled. Docs: https://cracked.ai/docs/x402. Contact: support@cracked.ai.

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.

Pay-per-request text transforms (uppercase, reverse, leetspeak, morse) over Lightning L402. Also agent tools at /api/tool: btc_price, sats_convert, sha256. Free discovery: GET /api/tools.

Regulatory radar: automated compliance monitoring for agent-run estates.

Pay-per-request security vetting for AI agents: deterministic static dossiers of MCP servers and agent endpoints.

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.

Cashback infrastructure for AI agents, settled in sats. Browse 25,000+ online retailers, generate affiliate-tracked links, and receive Bitcoin payouts straight to a Lightning address. Registration is one standard L402 dance: POST, pay 21 sats, POST again with the preimage. No signup, no API keys, no extra steps. Full MCP server support for agentic workflows.

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.

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

Metered, OpenAI-compatible multi-model AI inference API. Pay per request in sats via Lightning (L402). 21% discount on Bitcoin payments up to $100.

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