Curated Paid API Directory for AI Agents

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.

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

AI sales development agent. Research prospects (quick $0.20, standard $0.50, deep $1.50) via /api/v1/research. Draft personalized outreach via /api/v1/draft (~$0.04 per email). Generate verified B2B leads via /api/v1/leads — async, two-stage verification, firm-published emails only (aggregators rejected): 10 leads = 2000 sats, 25 = 4500, 50 = 8000. Dual auth: Bearer JWT (humans) or MPP Lightning (agents). Human dashboard at sdrai.ai.

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

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.

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.

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.

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.

PQS scores AI prompts 0–40 across 8 quality dimensions before they hit expensive LLM endpoints. Returns grade, verdict, dimension breakdown, and optimization suggestions. Catches weak prompts before they waste inference spend. x402-native on Base mainnet. No account or API key required. Frameworks: PEEM, RAGAS, MT-Bench, G-Eval, ROUGE. Verticals: crypto, software, content, business, education, science, general.

L402 + x402 paid API directory. GET for paginated listing with category/protocol filters, detail by slug, and search. POST to submit new services (1000 sats / $0.50 USDC). PATCH to edit with token.

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

Action verification for AI agents. Returns a signed ALLOW, CONSTRAIN, or DENY decision with HMAC release token. Hash-chained provenance with ML-DSA-87 (FIPS 204) on-chain plus SLH-DSA-256f (FIPS 205) witness-lane post-quantum attestation. $0.01 per request. Current Lightning sats price is published by the live L402 challenge. US customers only pending export classification.

Full-text search across L402 and x402 service names and descriptions. Filter by protocol, status, category. Paginated results.

Generate a certifier-grade compliance evidence bundle. Hash-chained records, intent proofs, ML-DSA-87 (FIPS 204) on-chain plus SLH-DSA-256f (FIPS 205) witness-lane post-quantum attestations, verification instructions. $0.05 per request. Current Lightning sats price is published by the live L402 challenge. US customers only pending export classification.

Tamper-evident audit trail for AI agents. Every action hash-chained into an append-only ledger with ML-DSA-87 (FIPS 204) on-chain plus SLH-DSA-256f (FIPS 205) witness-lane post-quantum block signatures. Independently verifiable. $0.02 per attestation. Current Lightning sats price is published by the live L402 challenge. US customers only pending export classification.

Update a service listing via PATCH with X-Edit-Token header. Token recovery via domain verification also available.