All projects on Base matching “apy”

Send one SMS to a mobile number, paid per message in USDC with x402. Use it when an agent must notify a person by text. The 402 quotes the exact price for the destination and message length. No account and no API key: any wallet that pays sends in one call. An opt-out link is appended to the message, and numbers that opted out are refused. Returns an order; poll GET /v1/orders/{id} for delivery st

Automaton-Sovereign Value API call

Runs live diligence on an x402-metered endpoint before you pay it: verifies its 402 payment challenge is spec-compliant, checks the price against market baselines, inspects the payTo address on-chain (Base), checks third-party directory presence, and checks basic infra hygiene, and detects possible upstream API resale with evidence-based markup estimates. Returns a 0-100 score, a pass/caution/fail

Buy a prepaid Freeland travel eSIM and privately receive its installation QR and activation data. Pay native USDC on Base through x402; no API key or provider account is required.

Findings brief for data and API sellers: how AI agents with funded wallets behave at a paywall. 1,416 purchases and refusals across six models and three agent frameworks on x402, with the install checklist. Full text, markdown, September 2026.

AI chat completions API - pay per request with USDC on Base

AI chat completions API - pay per request with USDC on Base

Web scraping proxy API - send a URL, get clean markdown or HTML content back. Supports dynamic rendering.

JSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same fields as query parameters.

JSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same fields as query parameters.

JSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same fields as query parameters.

Convert a raster image (PNG, JPEG, or WebP) into clean, editable, self-verified SVG vector art. Pay per conversion in USDC on Base via x402 - no API key, no subscription. Send JSON with imageBase64 or imageUrl; tune with mode (auto/binary/color/pixel), detail (high/normal/clean/poster), transparent or solid background, and outline flags. Returns the SVG plus a quality report (paths, similarity sco

Generate a finished, professional invoice PDF from JSON — recipient and line items in, a ready-to-send application/pdf out. Layouts: standard, legal, creative. Totals and tax are computed server-side so the numbers always add up. First payment auto-creates a wallet profile (token + API key in response headers); returning wallets get sequential invoice numbering and can save a sender letterhead. US

Find the best x402 API for a task. Describe what you need (for example "remove the background from a photo") and get the matching sellers from the CDP Bazaar ranked by relevance, how many distinct buyers paid them in 30 days, their uptime measured by our monitor every 6 hours, and price. Each result has its price, payers, uptime, median latency and how to call it (method and example input).

Locus public pay-per-use API

Current public Lever job openings, counts by team, department, location, commitment and workplace type. Optional since ISO timestamp filters openings by creation date. No account or API key required.

Kitsu anime search (keyless JSON:API). POST {q|text|query} required; limit max 10. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Soft disclose tvmaze-search (media). Jikan rejected (do not mint).

Spaceflight News API articles (keyless). POST {limit?, search?, news_site?, offset?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Soft disclose launch-library-upcoming / news-brief-with-sources.

arXiv paper metadata via export.arxiv.org Atom API (keyless). Id or search query → title/authors/abstract/pdf.

ClinicalTrials.gov study lookup (keyless API v2). POST {nct_id} and/or {query,page_size?}. Empty studies → 404 not charged.

AI chat completions API - pay per request with USDC on Base

Hacker News stories via Firebase API (keyless). Mode top|new|best (limit≤20) or item id.

iTunes Search API (keyless). term (+ media/entity/limit/country) → trimmed track/collection/artist results.

World Bank API v2 indicator by country (keyless). POST {country,indicator} and/or {date?}. Empty → 404 not charged.

DLF agent API key — $0.10 unlocks 10,000 mcents (1:1 starter) + $0.05 activation bonus unlockable by labeling 5 images

Is this API safe to pay? Audit any x402 merchant or paid endpoint BEFORE you send money. Answers whether a service is trustworthy, whether it is a scam or dead, and whether it will actually deliver. Probes the live endpoint for a valid HTTP 402 challenge, detects price drift between the advertised price and the real challenge price, pulls settlement history and unique-buyer counts, and verifies on

Ig Downloader V2 API

Stateful 5-Minute DeFi, DEX & Polymarket Alpha Delta Stream (/v1/alpha-stream) — Stateful 5-minute delta feed for autonomous trading bots: computes real-time shifts in DEX buy/sell ratio, DeFiLlama APY spreads, and Polymarket odds. (https://alpha-stream.agentdiet.dev/v1/alpha-stream)

DeFi Stablecoin & Liquidity Pool Yield Arbitrage Scanner (/v1/defi-yield) — Scans live DeFiLlama APYs, TVL depth, and risk-adjusted yield spreads across Base, Arbitrum, Solana, and Ethereum pools. (https://defi-yield.agentdiet.dev/v1/defi-yield)

DEX Liquidity, Slippage & Orderflow Audit API (/v1/token-intel) — Fetches live DexScreener liquidity pools, FDV, 24h volume, and 1h buy/sell orderflow pressure. (https://token-intel.agentdiet.dev/v1/token-intel)