Disclosure: This page contains referral/affiliate links. If you sign up or pay through them, MoneyTools may earn a commission and you may get a discount where stated. Terms below are summarized from each program's official page on the date shown; check the official page before relying on them. Nothing here is financial, legal or investment advice.
Factual directory of x402 pay-per-call services run by MoneyTools for AI agents, plus referral/affiliate links we hold. Contains referral links. Machine-readable: /llms.txt · /index.json. Last updated 2026-11-03.
Guides: Pre-check an x402 seller before your agent pays · Pick the cheapest perp DEX with fees.json
New: Perp DEX trading fee comparison for AI agents (contains referral-link disclosure) · /fees.json · 20% referral program for agents (pay-precheck)
Payment: x402 v2, USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base mainnet (eip155:8453), payTo 0x64eB63904Cf9688AC5B3087A72AcF9C31a273169, facilitator PayAI. Unpaid calls return HTTP 402 with payment requirements.
| Endpoint | Price | Try |
|---|---|---|
x402 Pay-Precheckhttps://api.moneytools.dev/v1/precheck?url=<endpoint>Fetch a third-party x402 endpoint, parse its HTTP 402 payment terms (scheme, network, payTo, amount, asset) and screen payTo against the OFAC SDN crypto-address list before you pay. Returns ok|warn|block|not_402. | $0.005 | 5 free calls/day/IP on the /v1 URL free demo |
x402 Settlement Verifyhttps://api.moneytools.dev/v1/verify?txHash=<0x..>&network=base&payTo=<0x..>&amount=<decimal>Check on-chain that a USDC transfer to payTo succeeded with the expected amount and confirmations. Base, Base Sepolia, Polygon, Arbitrum, Avalanche, BSC. | $0.003 | 5 free calls/day/IP on the /v1 URL free demo |
x402 Recommendhttps://api.moneytools.dev/v1/recommend?task=<what you need>&maxPrice=0.05&network=baseRanked list of live x402 services for a task, from public directories with liveness probes; top 3 are pre-checked. | $0.004 | 5 free calls/day/IP on the /v1 URL free demo |
Solana Mint Checkhttps://api.moneytools.dev/v1/sol-mint?mint=<mint>Rule-based safety check of a Solana SPL / Token-2022 mint: mint & freeze authority, permanent delegate, transfer hook/fee, pausable, default-frozen, largest-holder concentration. Returns riskScore 0-100 and verdict low|medium|high. | $0.005 | 5 free calls/day/IP on the /v1 URL free demo |
Web Page to Markdownhttps://api.moneytools.dev/v1/read?url=<url>Fetch a public web page and return clean Markdown with a sha256 of the content. Respects robots.txt, public pages only, 1h cache. | $0.002 | 5 free calls/day/IP on the /v1 URL free demo |
Email Address Checkhttps://api.moneytools.dev/v1/email-check?email=<email>Validate an email address without sending mail or SMTP probing: syntax, domain, MX / null-MX, SPF, DMARC, disposable domain, role account, free provider, typo suggestion. Verdict valid|risky|invalid. | $0.002 | 5 free calls/day/IP on the /v1 URL free demo |
Discovery: llms · pricing · openapi · x402 · agentCard · mcp · a2a
Add ref=<your 0x Base wallet> as a query parameter (or an X-Referrer header) to any paid call you route to one of the 6 paid endpoints: /v1/precheck, /v1/verify, /v1/recommend, /v1/sol-mint, /v1/read, /v1/email-check.
Referrer accrues 20% of net revenue (amount received minus facilitator and gas fees) from referred paid calls that settle successfully on Base mainnet. Tracked off-chain (ref + ledger), settled monthly. Self-referral is not credited. Payouts are batched and sent manually in USDC on Base after owner review, minimum 1 USDC unpaid balance (smaller balances roll over); no automatic payouts.
Check earnings (free): https://api.moneytools.dev/v1/referral/{address}
Only programs where we hold a real link or code show one. Others are listed without links until joined.
| Program | Status | Link / code | Notes |
|---|---|---|---|
| Firecrawl Web scraping / web-to-markdown API | Coming soon | — | Affiliate application not yet submitted/approved. No link yet. official terms |
| dYdX Perpetuals exchange | Coming soon | — | Referral link not yet generated. Not available to US/Canada persons per dYdX terms. official terms |
| Aster Perpetuals exchange | Coming soon | — | Referral code not yet generated. official terms |
| Hyperliquid Perpetuals exchange | Pending | — | Per Hyperliquid docs: 4% fee discount on the referee's first $25M volume. Pending: Hyperliquid requires $10,000 cumulative volume before a referral code can be created. Our code will be added automatically when we reach it. official terms |
| Lighter Perpetuals exchange | Active | referral link goes to https://app.lighter.xyz/?referral=MONEYTOOLS code MONEYTOOLS | Per Lighter docs: 10% discount on trading fees you pay (rebated weekly), applied only if the code is used at sign-up. Standard accounts already pay 0% on regular orders, so the discount matters only on paid account types / advanced orders. Our referral link (MoneyTools earns a share). Lighter's Standard account is 0% maker/0% taker on regular orders, so MoneyTools earns nothing from Standard regular trades; we earn only from fees referred users actually pay (paid Premium/Advanced/Plus account types, and advanced/TWAP orders). Code applies only at sign-up and cannot be added later. Not available in the US, Canada, UK and other restricted regions per Lighter terms. Not investment advice. official terms |
Independent listing. Brand names belong to their owners; MoneyTools is not affiliated with or endorsed by them beyond the referral programs stated.