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Plexa /v1/pretrade/check — pre-trade token safety check on Base: can you still sell this token? avoid fires only on a trap proven on-chain now: no pool to exit into, an exit pot under 5% of your size, or the trading gate off (the honeypot shape). A drained pot is what a rug leaves behind — measured, not predicted. clear = no provable trap, NOT safe. Alias: same engine and price as /v1/pretrade/che

Healthcare text de-identification engine (demo endpoint — SYNTHETIC/TEST DATA ONLY, never send real PHI; nothing is stored). Strips names, DOBs, member/claim IDs, phones, emails, addresses, SSNs; dates become a derived interval timeline (service-to-denial days, days-ago) so denial and timely-filing math survives de-identification. Returns scrubbed text + token map for local re-identification. Prod

Crypto token risk brief: price action, liquidity, supply dilution, and red flags, summarized in plain English.

Before an AI agent trusts or pays a public API, inspect its public machine-readable evidence and x402 readiness. Submit a public HTTPS domain to check its agent card, OpenAPI, robots policy, and settlement-aware x402 signals, or submit a Base address for public onchain evidence. Returns a timestamped JSON report; not a security or compliance audit.

Live gas prices per chain — Base, Ethereum, and Solana from public RPCs, with speed tiers where derivable, plus a cheapest-chain recommendation. Toll: $0.005 USDC on Base or Solana.

Check a Romanian e-Factura (UBL 2.1, CIUS-RO 1.0.9) before uploading it to ANAF SPV, and get the exact fix for every error: plain-English explanation, the official Romanian rule text, the UBL path of the field and, for amount errors, the correct value computed from the invoice (chained, so following the report gives a consistent invoice). Also validates Peppol BIS Billing 3.0 and EN 16931. No acco

Real-time crypto threat and risk intelligence for AI agents. Get up to 20 recent source-linked risk reports with risk scores, freshness, validation status and cached PG1 checks when available. Designed for automated triage and review. 0.01 USDC per snapshot on Base via x402; no API key or subscription required.

Octodamus — AI oracle for crypto and tokenized NYSE markets. BUY/SELL/HOLD signals, Polymarket edges, Fear & Greed, macro regime. Ed25519 signed.

Transaction receipt status/block/confirmations on Base or Ethereum via eth_getTransactionReceipt. Validates 0x hash BEFORE settle.

Token-aware text chunks with heading path inheritance and stable sha256 chunk ids (cl100k).

ENS (.eth) + Basename (.base.eth) forward/reverse resolution on Base/Ethereum public RPC. Avatar optional. Amp port.

ERC-20 name/symbol/decimals/totalSupply (+ optional balanceOf) via multicall3 on Base or Ethereum. 400 if not a contract. Amp port.

Latest eth_blockNumber for Base and/or Ethereum; optional tip timestamp. ~2s cache. Amp port.

Wallet balances in one call on 9 chains: native + USDC, USDT, DAI, EURC, bridged USDC, WETH, WBTC/cbBTC on Base, Ethereum, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain; SOL + USDC/USDT on Solana; TRX + USDT on Tron. Pass 0x, Solana and/or Tron addresses, plus up to 10 custom tokens. Live reads, block numbers, stablecoin total. 0.002 USDC.

CipherOwl ExpressScan Basic: direct-address risk check. One address per request. Seven-day same-address rechecks. Website: https://x402.cipherowl.ai. Response example is illustrative, not a live result or valid payment receipt.

Try with $0.050 in free shared credit once per wallet. No deposit or on-chain transaction; wallet sign-in required. Credit, daily budget and availability apply. Geocode an address or place name into latitude, longitude, normalized address, IANA time zone and current UTC offset. Use for location lookup and scheduling across time zones. Paid price: $0.014. Docs: https://manyfish-seller.redcliff-d736

EchoMarkets brief: odds, liquidity, movement and resolution for one Polymarket market

Crypto Market Data Integrity Attestation for agents and trading systems. Validate caller-supplied crypto market observations for causal timing, freshness, gaps, sequencing, identity consistency, and cryptographic record hashes. Returns deterministic PASS/FAIL, safe_to_use, named checks, and attestation identity. Use before analytics, research, or trading workflows. No market data acquisition or re

Use when an agent is about to crawl, train on or ingest a website into RAG: checks the domain's AI consent and licensing signals (robots.txt per AI bot, RSL license, IETF AIPREF, TDMRep, noai meta tags, llms.txt, C2PA), returns a 0-100 score and a training stance, and a signed EAS receipt anchored on Base proving what was checked and when. Errors: 400 invalid domain; 502 site unreachable (not char

Multi-source verified token price (DeFiLlama + Coinbase spot). Data only, not advice. Soft-fail per source; no charge when all fail.

Cross-protocol risk-adjusted DeFi yield screener: ranked pools with honest base-vs-reward APY split, trap flags, and 0-10 risk overlay

Bridge condition and clearance verdict from the FHWA National Bridge Inventory: component condition ratings (deck/superstructure/substructure/culvert, 0-9), Good/Fair/Poor verdict, scour-critical flag, vertical/horizontal clearances, ADT, and inspection date for any US bridge by structure number, state+county, or facility/feature text. Public-domain USDOT data.

Cheap BTC/ETH/SOL/HYPE USD spots + 24h change from CoinGecko, with summary. Use /v1/pulse when you also need Fear & Greed, funding, or DeFi (one call replaces four).

Nursing-home quality verdict by facility name or CMS Certification Number (CCN). Returns CMS five-star ratings (overall, health inspection, staffing, quality measures), recent-cycle health deficiency citation counts including serious (harm / immediate jeopardy) citations, total fines and payment-denial days, and Special Focus Facility status. Source: CMS Provider Data Catalog (US federal public da

The EIP-155 chain ID for any supported network via eth_chainId — the read multi-chain agents make to confirm which chain an RPC is on before signing. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free public RPC; 6 chains vs onesource's Ethereum-only coverage. List your own x402 service on bazaar.agentexchange.work/listings: 1 USD, 30 days, live at once, no account.

Token contract facts for agents on Base. Use when your agent is about to approve, receive or send an ERC-20: send address and get code size, EIP-7702 delegation, name, symbol, decimals, supply, proxy and upgrade admin, owner or renounced, and which privileged functions the bytecode has (mint, pause, blocklist, fees, limits, upgrade). Facts only: no grades, not investment advice. Built and run by W

Cross-chain ERC-8004 trust score for one (chain, agent) pair — signed JSON with transparent component breakdown (value_avg / client_breadth / volume / recency), per-chain context, and methodology link. USDC pay-per-call on Base mainnet.

Get a client token for direct upload to Vercel Blob

SendCheck: pre-send verification of any EVM address on one chain (EIP-55 checksum, wallet-vs-contract, outgoing activity, balances, verdict). POST {address, chain}

Simulate an Ethereum or Base transaction before execution and return an ALLOW, WARN, BLOCK, or INCOMPLETE decision with deterministic risk findings. Supports legacy post-execution inspection via tx_hash and pre-execution simulation via {from, to, value, data}.