Every agent-payable API.

Live + reference foreign-exchange (forex) rates, base USD. LIVE near-real-time mid quotes for the 12 most-traded currencies (EUR, GBP, JPY, CHF, CAD, AUD, NZD, CNY, HKD, SGD, SEK, KRW), refreshed every minute with an honest market-open/stale flag, PLUS the official ECB daily reference table for ~30 currencies. Derive any cross-rate or pair. For agents pricing cross-border ops, treasury, invoicing and FX conversion. Keyless, pay-per-call.

OyaPicks: live prediction-market data across Polymarket and Alpha Arcade, including cross-venue arbitrage gaps where the same outcome is priced differently.

Pay 1 USDC → Get 5,000 $PAY → Your “Payment Moment” Poster.

Pending block - transactions not yet mined, via eth_getBlockByNumber("pending")

Per-agent budget enforcement — track an agent's cumulative spend against a cap and block overspend. Part of x402 Agentic, the payment-trust suite for AI agents on Base USDC.

Google Maps local business search — find places by query and map location (coordinates viewport), returning ratings, reviews, address, phone, website, hours & service options as clean JSON.

Ranked Polymarket market-flow screener with factual concentration and liquidity-compatibility fields for the observed window.

Polymarket whale wallet API for agents. Returns whale trades, wallet metadata, tier, score, and activity for one tracked 0x wallet.

Paid x402 endpoint for arbitrage opportunities between prediction-market platforms.

Paid x402 endpoint for newly created prediction-market data and emerging betting topics.

Paid x402 endpoint for newly created prediction-market data and emerging betting topics.

Paid x402 endpoint for newly created prediction-market data and emerging betting topics.

Paid x402 endpoint for newly created prediction-market data and emerging betting topics.

Paid x402 endpoint for newly created prediction-market data and emerging betting topics.

Paid x402 endpoint for newly created prediction-market data and emerging betting topics.

Paid x402 endpoint for newly created prediction-market data and emerging betting topics.

Paid x402 endpoint for newly created prediction-market data and emerging betting topics.

Text-to-speech with speed (0.7x-2.0x) and quality-step (1-100) control, 1 of 10 standard voices across 31 languages, up to 500 characters, returned as WAV audio. Use it to: speak an urgent alert faster, slow a reading for clarity, tune synthesis quality against latency, produce a paced voice cue for a UI, generate a rushed or calm-toned notification. USDC on Base via x402, no API key.

Text-to-speech with speed (0.7x-2.0x) and quality-step (1-100) control, 1 of 10 standard voices across 31 languages, for 501-2000 characters, returned as WAV audio. Use it to: pace a longer narration like a podcast intro, read a multi-paragraph script at a chosen speed, produce a slow deliberate reading of instructions, voice an extended alert or briefing. USDC on Base via x402.

Parse and normalize postal addresses into structured components. Returns address number, street, city, state, ZIP, and USPS-formatted output. Postal address parsing and normalization. Sub-second. x402-native.

Validate phone numbers: E.164 format, country detection, line type (mobile/landline/VOIP/toll-free), and risk score. Deterministic, sub-second. x402-native.

Quantum circuit simulation (Qiskit Aer): statevector, density-matrix (noise), stabilizer, and MPS methods; shots, expectation values, and seeded determinism. Sync tier up to 24 qubits. Paid in USDC on Base or Solana.

AI summary of any public webpage: fetches the URL, extracts readable content, and returns a short, medium, or long factual summary.

Resolve Basenames (.base.eth) to wallet addresses on Base.

Content-safety classification (Llama Guard): safe/unsafe plus category codes.

Resolve DNS records using DNS-over-HTTPS and return structured JSON for infrastructure, security, and agent workflows.

Check an ERC-20 spending allowance on Base; flags unlimited approvals.

Verify an x402 settlement on Base OR Solana: pass a 0x transaction hash or a base58 signature, confirm it succeeded, decode its USDC transfers (event logs on Base, net token-balance deltas on Solana), and optionally assert the receiving wallet and amount.

ERC-20 name, symbol, decimals, and total supply for a token on Base.

One-call Base wallet profile: USDC balance, recent USDC transfers in/out, EOA-vs-contract type, and x402 Bazaar merchant listings if the address is a payTo. Bundles four on-chain lookups into a single paid call.

Extract clean readable text and metadata from a public webpage and return structured JSON for AI agents.

Deep x402 audit: the full endpoint audit plus a live probe for rail coverage (Base/Solana), multi-rail detection, HTTP status, and latency — a premium trust report on any x402 endpoint.

Inspect and lint any x402 paid endpoint: decodes the 402 payment challenge, names the network and asset, and flags misconfigurations including missing Bazaar discovery metadata.

Query Ethereum contract event logs via eth_getLogs - filter by contract, topic, and block range

Returns WARN events within a chosen radius (up to 250 miles) of a ZIP code, ranked by distance, with employer, headcount, and dates — use it to scan a territory for disruption activity

Polymarket whale trades API and whale radar sample for agents. Returns current tracked wallet moves for discovery and monitoring.

Deterministic readability scores (Flesch, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, ARI) over published formulas. For long text use POST. Signed.

Recent Kaspa blocks (max 144 per call = $1.44 cap). Optional chain_only flag to filter selected-parent chain blocks. AI agent API for backtesters and indexers. Informational research data — not investment advice.

Returns county-by-county disruption rollups for one state, ranked by severity — use it to identify which counties are seeing the most workforce disruption

Proposed/final rules and notices from a federal agency — the regulatory pipeline that reprices sectors. Pass `?agency=securities-and-exchange-commission` (slug) and/or `?q=` (at least one), plus `?type=all|rule|proposed|notice` and `?limit=` (max 100). Each doc has number, type, title, abstract, dates, agencies, and a link. From x402stock, a market & economic data API (x402, USDC).

$0.08/document. Ask natural-language questions of a document and get grounded answers (Textract Queries) — no OCR pipeline to build. 155 tools, one balance — relaystation.ai

$0.005/image. Recognize celebrities in an image (Rekognition) — names with confidence scores. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.005/image. Detect faces with attributes — age range, emotions, pose, landmarks (Rekognition). 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.005/image. Detect objects, scenes, and concepts in an image (Rekognition) — labels with confidence scores. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.0002/call. Get an image's dominant color as hex/RGB — theming and palettes from any picture. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.0003/MP. Strip EXIF and metadata for privacy — auto-orients first so photos stay upright. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.002/page. Pull text and structure out of a PDF — clean input for LLMs and search. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.0002/MB. Keep rows matching a structured predicate — injection-safe, no formula eval. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.0003/MP. Convert between PNG, JPEG, WebP, AVIF — HEIC accepted in, animation preserved with animated:true. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.003/page. Extract text from a scanned PDF (Tesseract) — make paper searchable data. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny