api.losbeto.xyz
Jupiter swap quote with the best DEX route and expected slippage for a given pair and size, so an agent can price execution before committing.
$0.02 USDC
ffpipe.dev
Convert any video to a clean, web-ready MP4. Provide a source URL or upload the file directly; the paid request returns a status URL to poll, and the finished MP4 (plus a thumbnail) is downloadable for 24 hours. Fixed price per conversion in USDC over x402; no account or API key. Failures on our side automatically mint a free retry voucher. Input up to 100 MB.
$0.02 USDC
api.demandex.dev
Paid ($0.01 USDC via x402). Returns the top 20 active opportunity cards by score as TEASERS — { id, slug, title, category, score, signalCount, lastSeen } only. No evidence and no productAngle (buy GET /v1/opportunity for the full card). While the index is still warming and no active cards exist yet, you get a no-charge 503 corpus_warming (never an empty charged list) — poll the free GET /v1/categories to see when cards go live. Compute-first / settle-after — you are not charged on any error. Re…
$0.01 USDC
notary.forgemesh.io
Notarize AI output: a signed Ed25519 attestation of the model response plus sha256 content hash, receipt token, and Merkle anchor status for one AI inference — a cryptographic receipt for inference that lets you prove an AI said X and verify model output authenticity, checkable free by anyone, anytime.
$0.001000 USDC
api.loyalspark.online
Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. On the paid retry send the payment together with header x-api-key: rwk_... or Authorization: Bearer rwk_.... A payment without a live key is not charged. Holder key, not a merchant key. There is no paid registration. POST https://api.loyalspark.online/siwe-nonce, sign a SIWE message (Chain ID 8453) with the holder wallet and no special phrase, then POST {message, signature, name} to https://api.loyalspark.online/recipient-api/register. The rwk_ key sees only that wallet: balances, redeem, vouchers, transfer calldata, P2P, gift claims. Guide: https://loyalspark.online/.well-known/skills/00-getting-started.md The call is scoped to the wallet behind that key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.
$0.01 USDC
blockrun.ai
Every tracked yield pool across DeFi (lending, LPs, staking, vaults) with current APY/TVL.
$0.006000 USDC
flat-rate-llm.kikoribera03.workers.dev
Use when an agent must prove two payloads are the same byte for byte, or sign an API request: SHA-256 of any string or hex payload, returned as hex and as base64, which are the two forms signatures and content addresses are written in. Do not use for anything Ethereum hashes: the chain uses Keccak-256 (/v1/util/keccak256), which gives a different digest. No API key, no account.
$0.005000 USDC
rubric-protocol.com
Attested pre-transaction counterparty check: OFAC SDN digital-currency list match plus on-chain profile for any Base address, returned as a signed, Hedera-anchored verdict you can cite as evidence of diligence.
$0.01 USDC
bykaranteli.com
Every $1M+ aggressive market print recorded live from our own trade sockets, with side, price, quantity and notional, recorded since 2026-08-13, filterable by symbol, exchange and time. The free endpoint serves the live tape (newest 100 prints, no filters); this route is the recorded archive behind it.
$0.10 USDC
latamref.dev
Brazil: Consumption tax (no single VAT; fragmented system in dual-VAT transition), cited JSON with source URL, effective date and last_confirmed. GET /v1/br/vat.
$0.003000 USDC
x402-endpoints.onrender.com
Macro economic snapshot API — dated Eurozone economic indicators for trading/research agents: euro-area inflation (HICP / CPI), ECB policy interest rates (deposit, refi), unemployment and EUR FX from the official European Central Bank data portal — each indicator with value, as_of date, next_release cadence and a signed dated snapshot receipt for reproducible backtests. The interest-rate, inflation and currency context an agent needs before trading.
$0.005000 USDC
api.kadec0.xyz
DeFi yield and APY across pools. Returns the top yield-farming pools via DefiLlama with current APY, base and reward APY split, TVL, chain, and project, filterable by chain, project, symbol, stablecoin-only, minimum TVL, and minimum APY. For yield discovery and comparing APY across protocols. Keyless.
$0.03 USDC
bazaar-catalog.vercel.app
Convert Gregorian dates to Hijri (Umm al-Qura calendar) and back. Returns day/month/year, Arabic and English month names, and a formatted Arabic date string. Essential for agents handling Islamic events, Ramadan, Hajj seasons, or Arabic documents.
$0.01 USDC
agent.connskill.com
Keyword suggestions for a seed keyword, with search volume and CPC
$0.03 USDC
api.stocktrends.com
Latest sector, industry-group, or industry breadth snapshot. The default canonical population is CS+UN equities across A/N/Q/T.
$0.10 USDC