On-chain x402 settlement summary for an address from the decentralized x402 Base subgraph on The Graph Network. POST {address}. Returns lifetime stats as payer + recipient (totalPayments, totalVolume, first/last seen), recent 10 payments each direction, facilitator metadata if applicable, plus indexed_through_block for freshness. Decentralized, verifiable. Distinct from /ask. $0.01 USDC on Base.

Begin identity verification for a wallet. Costs $0.05 USDC. Returns a hosted verification URL and the bound wallet address. Open kycUrl in a browser. Once complete, any service can verify the wallet via /status.

Pay $0.05 USDC to seal up to 100 KB of text until a future date. Content is inaccessible via GET /open/{token} until unlock_at passes. An optional label is visible before unlock via GET /status/{token}. Max unlock date: 10 years from now. Network: Base Mainnet. Each request stores one sealed text capsule and returns a token for later retrieval.

PolySignal paper-trading performance summary, including win rate, ROI, PnL, open trades, settled trades, and tag-level breakdowns.

List all 454 spot tokens on Hyperliquid with metadata: name, tokenId, index, decimals, wei decimals.

Paid agent payment error diagnosis route for autonomous agents. Returns JSON with provenance, route-specific evidence, and machine-readable fields. Price 0.05 USDC on Base via x402. Demo/preview: https://agent-payment-error-corpus.mtree.workers.dev/demo/error_families. Contact: https://agent-payment-error-corpus.mtree.workers.dev/contact.

Upcoming FDA PDUFA decision dates for US-listed biotechs, extracted from primary SEC 8-K/6-K filings. Date accuracy is independently backtested (median 1-day error) — verify free at GET /v1/accuracy before paying.

Pay $0.01 USDC to get an upload token (recommended for images over a few KB). No request body needed. Use the returned token to upload via: curl -X POST https://img402.dev/api/upload -H 'X-Upload-Token: TOKEN' -F image=@file.png — The upload returns {url, id, contentType, sizeBytes, expiresAt}. Supports PNG, JPEG, GIF, WebP up to 5MB. 1-year retention.

Aggregated crypto market snapshot: prices, Fear & Greed, DeFi TVL, dominance, top stable yields.

Preview a GBLIN swap (buy ETH→GBLIN or sell GBLIN→ETH) with dynamic slippage and a MEV-safe minOut.

Scan any EVM wallet address or ENS name for on-chain risk signals using Web3 Antivirus. Returns a toxic score, risk level, and the specific risk categories that triggered a flag. Designed for off-ramp compliance: use shouldFlag to block or escalate — any non-zero toxic score means the wallet has been flagged for at least one risk category such as sanctions, scams, mixers, or phishing.

RLUSD stablecoin integrity check — multi-source peg + on-chain supply cross-verification for Ripple USD (RLUSD). Cross-references DeFiLlama peg price, XRPL on-chain circulating supply (gateway_balances on the NYDFS-regulated Standard Custody issuer), and live XRPL DEX orderbook liquidity in one call. Flags peg deviation, supply anomalies, thin liquidity. For stablecoin risk agents, treasury due diligence, MiCA/CASP monitoring, RWA settlement pre-checks, XRPL/Ripple compliance workflows.

Fast wallet risk check for any EVM address or ENS name using Web3 Antivirus quick-scan. Returns in ~350ms — ideal for real-time pre-transaction screening. Returns a toxic score and which risk flags fired. Use shouldFlag to block or escalate: any non-zero score means the wallet triggered a risk flag such as sanctions, scams, mixers, or phishing. Roughly 27x faster than the full scan endpoint.

Pay $0.10 USDC to submit a question to a real human community (Discord & Telegram). Returns a token to poll for responses. Status becomes 'ready' once at least 1 human response(s) are collected. Max question length: 2000 characters. Poll GET /status/{token} to check progress and GET /responses/{token} to retrieve answers. Network: Base Mainnet. Useful for human-in-the-loop reviews and preference checks.

Latest crypto news aggregated from major outlets (CoinDesk/Cointelegraph/Decrypt/+3), LLM-ready, keyword/category filterable.

DripMetricsAI (api description at https://dripmetrics.ai/) provides on-demand crypto market microstructure and risk metrics for agents and developers. Agents can pay per request via x402 and receive structured JSON metrics without subscriptions or API keys. Signed Dollar Volume measures signed quote volume over the specified lookback window. Discovery examples use the latest 30m window.

Interzoid Batch Match: AI-powered similarity-key matching and deduplication over a CSV/TSV file or SQL table. Priced at $0.01 per record (1 cent each), up to a maximum of 10000 records per job. Call with your file or database parameters to receive an exact quote for your record count.

Upcoming FDA PDUFA decision dates for US-listed biotechs, extracted from primary SEC 8-K/6-K filings. Date accuracy is independently backtested (median 1-day error) — verify free at GET /v1/accuracy before paying.

Composed yield allocation recommender. Fans out 3 parallel /api/yield calls at low/medium/high risk tiers for the same amount + duration, then returns a recommended portfolio split + 2-sentence rationale. Allowed bands: conservative / balanced / aggressive / bespoke. 6h Upstash cache bucketed by amount tier × duration × chain.

Anomaly scan for a DeFi protocol — unusual flows through major lending/DEX contracts