Curated Paid API Directory for AI Agents

AI-powered web search. Returns a synthesized, cited answer from Brave Search results using Gemini 3 Flash — not just links. Supports GET and POST, responds with structured JSON. No API keys or accounts needed. Tiers: [100 sats: 2,500 tokens | 1,000 sats: 35,000 tokens] Each query costs input + output tokens + 1,000 token search fee. Reuse credential until all tokens depleted.

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.

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.

Real-time Bitcoin mempool statistics including size, bytes, and minimum fee rate. Data from a full Bitcoin node.

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

120+ AI services payable via Bitcoin Lightning L402. Research, writing, code generation, image creation, translation, voice, video, PDFs and more. Pay-per-task from 10 sats. No signup required. Free trial available at arknode.ai

AI-powered Bitcoin mempool analysis. Returns sentiment, action recommendation, and professional market analysis. Powered by Gemini.

Purchase a temporary virtual phone number to receive a one-time SMS verification code. Pay-per-use via Lightning. Price varies by country/service.

Pay-per-use AI inference via Solana USDC. Connect Phantom, deposit any amount, call Claude or GPT-4 instantly. No API keys, no accounts — wallet is your identity.

Solana token safety scanner. Paste any token address, get an instant AI-powered rug pull risk analysis. Pay 10 sats per scan via Lightning. No signup required.

AI-powered Polymarket prediction market analysis. Finds mispriced markets, identifies edge opportunities, analyzes probability vs market price. Pay per analysis in sats via Lightning.

Predicts Bitcoin network congestion level and estimated wait times. Returns fee estimates for next block through this week.

Per-service health report: uptime percentage, avg latency, probe history. Paywalled (50 sats / $0.025 USDC). Supports L402 and x402.

Detects large Bitcoin transactions in the mempool. Returns top whale TXs sorted by fee and vsize. Data from a full Bitcoin node.

Batch governance operations for AI agents. Verify, attest, and bind in a single call. Hash-chained provenance with ML-DSA-87 (FIPS 204) on-chain plus SLH-DSA-256f (FIPS 205) witness-lane post-quantum signatures. $0.01 per request. Current Lightning sats price is published by the live L402 challenge. US customers only pending export classification.

6 multi-step AI workflow bundles via L402. Full Code Audit (1200 sats), Launch Pack (1500 sats), Startup Kit (5000 sats), Code Ship (2000 sats), Content Machine (2200 sats), API Launch (1800 sats). Chain multiple AI services at discounted bundle rates.

120+ AI services paid with Bitcoin Lightning. Code gen, image generation, voice synthesis, research, translation, legal drafting, medical summaries, SEO analysis, content writing, DevOps automation, data analysis — all pay-per-task via L402. No signup, no subscription, no API keys. From 50 sats. Workflow bundles available.

Export the full service directory as JSON in a single request. Paywalled (5000 sats / $2.50 USDC). Supports L402 and x402.

Prompt injection detection for AI agents. GPU-accelerated DeBERTa-v3 classifier detects jailbreaks, role hijacking, and injection attacks. HMAC-signed results with ML-DSA-87 (FIPS 204) on-chain plus SLH-DSA-256f (FIPS 205) witness-lane post-quantum signatures. lnget-compatible binary macaroons. $0.01 per scan. Current Lightning sats price is published by the live L402 challenge. US customers only pending export classification.

Intent-to-action binding for AI agents. HMAC-signed cryptographic proof that what the agent declared matches what it executed, with ML-DSA-87 (FIPS 204) on-chain plus SLH-DSA-256f (FIPS 205) witness-lane post-quantum signatures. Closes the accountability gap. $0.02 per request. Current Lightning sats price is published by the live L402 challenge. US customers only pending export classification.