Api
api.loyalspark.onlineOnchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.
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Live discovery · Base mainnet · Native USDC
This directory shows x402 APIs indexed by Coinbase Bazaar whose payment requirements match LavoLoop today: protocol v2, Base mainnet, native USDC, and exact pay-per-call settlement.
Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.
Real-time crypto market news with sentiment analysis and top headlines ranked by importance.
Get Address Current Balance Data
Query Polymarket markets with filtering, sorting, and pagination
Earnings release calendar — which US-listed companies report earnings in a date window, with expected and (once reported) actual EPS and revenue, and the time of day (before/after market). Pass a from/to window (YYYY-MM-DD; defaults to the next 14 days) and optionally a ticker to filter to one company. Agents cannot recall future earnings dates — this is the schedule. Data by Finnhub.
Multi-model chat completions. POST messages[] and set model to any LLM id from GET /v1/models; dynamic USDC pricing scales with model and token usage. Hero: GET /heroes/chat-completions.
Send an HPKE-encrypted prompt to the Aubrai chat agent running inside an attested private enclave. Only the enclave can decrypt your message.
Base RPC (chain 8453): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive) - good for indexing, event queries, and simulation. Simple calls $0.001; heavy calls priced by compute units.
Resolves an X handle to a public profile: id, username, display name, bio, verification fields, created_at, followers, following, tweet count, and listed count. Same read-only X API v2 user-by-username backend as x-username. Use it as an X users by username API, Twitter user profile lookup, or handle to public profile API.
Get OpenAI-compatible inference from many models at market prices via Surplus Intelligence.
Get real-time Best Bid/Ask for any FX pair, aggregated from multiple institutional liquidity providers. 62-88% tighter spreads than any single source. Includes quality metadata (fresh_sources, quality_state, spread_vs_single_source). Supports 14 FX pairs including EURUSD, USDJPY, GBPUSD, AUDUSD, AUDNZD, and XAUUSD. AI agent API for forex trading signals, portfolio valuation, price comparison, and arbitrage detection. Accepts USDC payments on Base and Solana
Transcribe audio to text using OpenAI (gpt-4o-mini-transcribe). Provide a URL to an audio file (mp3, wav, m4a, etc.) and get back the transcript. No API key needed; pay per call via x402. Max 5 minutes of audio, 25 MB file size.
DeepSeek AI inference — pay in USDC/EURC on Base or USDC on Arbitrum
Scrape any public URL to clean markdown
Bidirectional ERC20 token swap aggregator on Base mainnet via LiFi routing across 20+ DEXs (Uniswap V3, Aerodrome, BaseSwap, SushiSwap). USDC to WETH AERO DEGEN BRETT TOSHI cbETH cbBTC or any ERC20, and reverse to USDC. Two-step quote/execute x402 flow. 1% fee. AI agent swap. L2 DEX.
Get today's curated Word of the Day (definition + part of speech).
Human verification for AI agents — proof of humanity, sybil resistance, and 'is this wallet a real person' answers in one paid call. Returns two ZK-style outputs about any EVM wallet: (1) total humanity score 0-255 (15 = baseline reCAPTCHA, 45 = + Google OAuth, 70 = + Apple ID, 105 = + 2FA, 255 = full stack), with optional `min_score=N` for a yes/no `passes` verdict; (2) per-method verification check via `check=telegram,apple,g2fa,...` — buyer must NAME the methods to ask about, we never enumerate the full set. Backed by 141,871 Twin Matrix Soulbound Tokens on BNB Chain plus the canonical huma
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. VPIN estimates volume-synchronized probability of informed trading for a crypto trading pair over a specified window. Discovery examples use the latest 30m window.
Firecrawl — Scrape a single URL and return clean markdown/HTML.
Normalized NHTSA vPIC VIN decode (?vin=) — make/model/year/engine/body/… with fetch provenance, plus ORIGINAL factory new-vehicle warranty terms (basic/powertrain/corrosion/roadside/EV battery) keyed off make + model-year.
gpt-4o-mini API call (~128 tokens)
Detect the language of input text and translate it to any specified target language. AI-powered translation supporting numerous world languages.
Premium text-to-speech with ElevenLabs — ultra-realistic voices, multilingual support, custom voice IDs
LLM inference
Frontier chat completions via Telnyx Inference (MiniMax M2.7). OpenAI-compatible. $0.002856 USDC per call — no API key, no signup, pay per request.
Korean crypto sentiment — AI analysis combining 189+ tokens exchange data with Korean news. First-in-world Korean-to-English crypto sentiment API.
Paid ($0.01 USDC via x402). Active AI-business narratives with lifecycle stage, driving sources, and momentum. Proxied from the Pulse service. Compute-first / settle-after — you are never charged when Pulse is unavailable or returns an error.
Historical hourly AI intelligence digests (1-24 hours lookback). Track how AI agent sentiment, topics, and narratives evolve over time. Each digest contains full analysis of that hour's agent activity.
OpenAI-compatible LLM inference and chat completions via discounted Venice API credits. Pay USDC to receive a live Venice.ai API key for /api/v1 models, chat, images, audio, video, and embeddings. Same-Day credits are 30–90% below Venice direct and expire at 23:59 UTC; Prepaid API Keys support recurring agent jobs.
Import media into the project from a public https URL — the server fetches and mirrors the bytes (SSRF-filtered), then processes it (transcode + transcribe). Async: returns a media id that flips to ready when the mirror and processing finish; poll GET /media/:id or use a media.completed webhook.
Real-time forex / exchange rates from the European Central Bank (via Frankfurter). Pass from=USD and to=EUR (or batch to=EUR,GBP,JPY,CNY). Returns rates, inverse rates and last-update date. For AI agents needing exchange rate, currency conversion, fx rate and forex data. 实时外汇汇率,支持批量与反向汇率。 Accepts payment on Base or Solana — either network works.
APEX Runner: Btc Price Tick Signal
Base gas oracle / gas price API for AI agents and bots — get the gas price for a transaction on Base in one x402 call. Real-time slow/standard/fast EIP-1559 fee tiers from a live eth_feeHistory call, returned as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei — plug straight into a viem/ethers transaction, no gwei conversion. Plus base fee, head block, and network fullness. Call it before every Base tx to set a fair fee or wait out congestion.
Multi-chain EVM gas price oracle for AI agents — 17 chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Avalanche…). One x402 call returns slow/standard/fast EIP-1559 tiers as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei (plug straight into a viem/ethers tx, no conversion, exact even on sub-gwei L2s), plus base fee, head block, and fullness, from a live eth_feeHistory call. Pass ?chain= to switch chains.
Live grid carbon intensity, deterministic. Answers "how clean is the grid right now", "gCO2 per kWh in Germany", "cleanest hour to run a job today". Current intensity + forward curve (to 48h) + cleanest and dirtiest slots, from NESO (GB national + 14 DNO regions) and energy-charts/Fraunhofer ISE (DE FR NL BE AT ES IT NO). No LLM, no key. Pair with /api/energy/compute-window for full job scheduling.
Custom AI-generated images from your text prompt: product visuals, concept art, social media banners, illustrations, and more. Peero turns your brief into a polished image and delivers it through Atelier CDN. Important terms: - A clear tex
Live USGS river-gauge tick, deterministic. Answers "what is the flow at this gauge right now", "is this river high or low vs this week". Returns the latest streamflow (discharge, cfs) and gage height (ft) for one USGS site plus the 7-day min/max range, reading count, site name and coordinates, straight from USGS instantaneous values. Unknown sites 404 before payment. No LLM, no key, public domain.
Name in, official IDs out. Give it a company or crypto name or ticker ("Apple", "ETH", "Stripe") and get the verified IDs that identify it everywhere: SEC CIK + ticker, GLEIF LEI, Wikidata QID, CoinGecko slug. Every ID is pulled live from the entity's own official registry and tagged with the sources that agreed — so you can check it yourself, not trust an LLM's guess. Ranked by confidence.
Skim Signal: AI/tech news — high-signal Hacker News stories, fresh arXiv AI papers, and official vendor announcements as structured items (title, excerpt, source, link). Refreshed on a 10-minute cycle; poll as often as you like.
Text to speech, TTS, voice generation, and speech synthesis for agents. Generate low-cost inline WAV audio with 10 standard voices, 31 languages, and up to 500 chars for $0.001.
Scrape any public URL - clean LLM-ready markdown
DeFi protocol risk score: TVL, hack history, audit status, contract safety, AI verdict, plus current supply/lending yields (APY)
Cheapest LLM on CDP x402 Bazaar. OpenAI-compatible chat completion. Default OpenAI GPT-OSS 120B; also offers Llama 3.2 3B, Mistral Small 24B, Gemma 3 27B, Qwen3.5 9B, and Nemotron Nano 30B (all via Venice AI). 512-token output cap, 6000-char input cap. Supports tools/tool_choice and stream:true SSE.
Curated stock-market news with ticker tags, source, publisher, image, and timestamps. Pass `?ticker=AAPL` to filter. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.
ERC-20 token due diligence — risk score, GoPlus security scan, honeypot detection, liquidity, holder concentration, AI analyst verdict
Returns working technical solutions to common implementation problems, with the production-critical completion step that handles errors, edge cases, and security.
Pre-trade risk check for AI agents trading crypto: live orderbook slippage at YOUR size, side-aware funding carry, open-interest crowding, and optional contract security — composed into a single ok/caution/avoid verdict with per-factor reasons and raw data embedded. Answers 'is this trade sane?' before trading, not after. Replaces four API integrations plus the judgment layer.
Agent-native web reader over x402 — send a URL, get back clean markdown: no signup, no API key, no SDK required. Pay-on-success: a fetch that fails or returns too little content settles nothing. Read $0.004; prepay $1 = 10,000 credits, spent at 80% of the per-op price (20% off). Docs: https://agentx402.ai
Latest Stock Trends Inference Model (ST-IM) outputs for a symbol: forward return expectations and statistical distributions across 4-week, 13-week, and 40-week horizons. Use /v1/meta/stim for ST-IM provenance, base-period context, and interpretation limits.
AI chat completions - 80+ models (GPT-4o, Claude, Gemini, DeepSeek), pay per token with USDC
Current Base mainnet gas prices. Slow, standard, fast in gwei.
Exact math for agents — the arithmetic LLMs get plausibly wrong. Evaluates an expression at 50-significant-digit precision (BigNumber): big-integer multiplication, high-precision division, roots, logs, factorials, unit conversions (12 inch to cm). GET ?expr=…, result returned as an exact string. Deterministic, no AI, never executed as code.
$0.01/screen. Screen any name against OFAC, EU, and UK sanctions (UN included) plus Wikidata-derived PEP watchlists — fuzzy matching, instant JSON verdict. Compliance in one call, one of 155 Relaystation tools on one balance — relaystation.ai
Look up any Ethereum address — returns entity labels, name tags, and categories from 412K+ labeled addresses. AI agent API for on-chain identity resolution
Agent morning brief. One paid call returns the last 24 hours of AI pricing changes, new and removed models, service-status incidents, and top news headlines. The endpoint an agent calls on boot.
Real-time crypto market news with sentiment analysis and top headlines ranked by importance.
Agent-SOFR — decentralized USD short-rate benchmark for AI agents. Weighted-median of 7 sources + variance + regime premiums. BNS-calibrated 6-mode classifier on 444k ETH/USDC 5-min bars (λ=1.097 closed-form). Open + IPFS-pinned methodology: agent-sofr-v1.
Scheme, type, brand, issuer bank and country, and payout settings for a card BIN.
Repair malformed JSON text into valid parsed JSON: markdown code fences, single quotes, smart quotes, unquoted keys, trailing commas, comments, Python literals (True/None), raw newlines in strings, and truncated output (auto-closes strings, arrays and objects). Returns the parsed value plus a log of every repair applied. Built for LLM output that almost parses. POST a JSON body like: {"text":"```json\n{name: 'Ada', age: 36, tags: ['x',], active: True"}
Full transcript of any YouTube video by video id or URL: captions/subtitles as clean plain text plus timestamped segments, the video's chapter markers, and every caption track it offers so an agent can pick a language and re-fetch. YouTube transcript, video to text, captions extraction, subtitle download, closed captions, speech to text, multilingual, asr and authored tracks. No API key.