Every agent-payable API.

Trending DEX pools right now — Base, Ethereum, Solana, Polygon, BSC, Arbitrum, Optimism, Avalanche, or network=all for cross-chain across those same 8. Top 10 hottest pools ranked by GeckoTerminal 24h trending: pool address, DEX, price USD, 24h price change, 24h volume, liquidity (TVL), FDV, 24h txns as flat JSON numbers. Trending pools, hot pools, top movers, momentum screener, what is pumping. $0.001 per call.

13F holdings for any SEC-filing manager (hedge funds, asset managers) by CIK or manager ticker: latest 13F top 20 positions, amendments applied (hourly snapshot, ~1h correction lag): issuer, CUSIP, value in whole USD, share/principal amount (SH/PRN), put/call flag, reported value, position count. Whale tracking from the primary source. 13F holdings, hedge fund positions, institutional ownership. Public-domain SEC EDGAR. $0.003 per call.

Which protocols earn the most — and who is accelerating? Top 30 DeFi protocols by 24h fees, each with revenue, take-rate (the cut the protocol keeps vs fees users pay), 7d/30d trend and category, plus total DeFi fees & revenue. A fundamentals screen (fee/revenue economics), distinct from TVL. Sourced from DefiLlama (public). Refreshed hourly.

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

Paid ($0.10 USDC via x402). Same body as /v1/gauge — POST { "query": "...", "category"?: "..." } (query 3..200 chars; body-first, ?query= fallback). Combines the mined corpus with a LIVE Reddit search run at request time (up to 50 posts, subreddits unrestricted) and one LLM synthesis call. Total compute budget is 45 seconds; on timeout you get a 504 and are not charged. Returns the same verdict shape as /v1/gauge (cache is always miss). A zero-match, empty-search query is a real cold verdict (c…

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

Verify-before-act risk oracle: POST an action context (message, payload, proposal, payee, tool-call) and get a signed ALLOW/WARN/BLOCK/ABSTAIN verdict + 0-100 safe-to-proceed score + reasons from a LOCAL model (no data egress). The verdict carries an embedded EIP-712 PayloadAttestation — recompute keccak256(answer) and recover the signer before acting. Advisory: the receipt proves provenance/integrity, not correctness.

End-of-life dates and status for language runtimes, frameworks, OSes (endoflife.date)

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.

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.

Know Your Business (KYB) entity verification: registration status, sanctions screening, beneficial ownership, risk score, and a proceed/review/reject recommendation for compliance and fintech agents.

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

Accounts that retweeted a tweet (paginate with cursor until has_more is false). Example: GET /api/tweets/20/retweeters

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.

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

$0.0003/MP. Crop any region by coordinates — exact pixels out. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$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

$0.002/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

$0.0005/MB. Re-encode video/audio to another container or codec (H.264/AAC and more) — scale, crop, rotate in the same pass. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.0002/MB. Three-way merge of two edits against a common base — conflict markers on overlap. 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

$0.05/document. Parse a government ID (passport, license) into typed fields (Textract AnalyzeID). Parsing only — for verification + liveness use /v1/idverify. 155 tools, one balance — relaystation.ai

$0.055/document. Parse invoices and receipts into summary fields plus line items (Textract AnalyzeExpense) — vendor, totals, dates, SKUs. 155 tools, one balance — relaystation.ai

$0.01/search. Free-text place and point-of-interest search — names, addresses, coordinates back as JSON. 155 tools, one balance — relaystation.ai

$0.0002/call. Decode a QR code from an image — the embedded text or URL back as JSON. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.008/call. Rescue exotic or legacy Office files into PDF via LibreOffice — opens what modern Office won't. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny