Every agent-payable API.

Get Arkham Polymarket wallet PnL summary. $0.40 per call.

Get Arkham entity balance changes. $0.40 per call.

Get Arkham Polymarket prices. Provide at least one of: tokenAddress, conditionID. $0.40 per call.

Get Arkham Polymarket wallet prediction history. $0.60 per call.

Get Arkham contract intelligence. $0.20 per call.

Arkham-compatible ERC-20 transfers for one Base wallet, backed by the public Base transfer index; priced per bounded request

Skim: article extraction — URL to structured article JSON (title, author, date, summary, key points). No schema required.

Clean article text extraction — strips nav, ads, sidebars

X.509 TLS/SSL certificate inspector — parse fields and SANs, calculate a SHA-256 fingerprint, and check hostname and time validity without trust or revocation claims.

JSON Web Key (JWK) inspector — validate bounded public RSA, EC, or Ed25519 keys and calculate RFC 7638 SHA-256 thumbprints without ownership or trust claims.

PKCS#10 certificate signing request (CSR) inspector — parse requested identities and public-key metadata, calculate a fingerprint, and check the included self-signature without CA approval claims.

File type and MIME/media type inspector — identify bounded content by magic bytes and return SHA-256, size, and extension consistency without unpacking, malware scanning, or safety claims.

JSON Web Token (JWT) decoder — parse an unverified compact JWS header and claims and evaluate advisory NumericDate times without signature verification or URL fetching.

Validate an AI deliverable manifest and receive a signed deterministic PASS/WARN/FAIL QA receipt.

Inspect Base64 JSON, ZIP, PDF, or DOCX bytes and receive a signed deterministic delivery QA receipt.

Date-scoped variant of our JP MOF / OFAC address list lookup: returns list status for a chosen date instead of only today, using our own previously-recorded list-change log (same underlying data as sanctions.jp.diff / sanctions.ofac.diff -- no new data source). Each jurisdiction result includes a label describing how the value was derived: observed, inferred, assumed_unchanged, or insufficient_data. Factual reference data only; not legal or investment advice.

Japan market ledger: customs export ledger by destination (chips to Greater China 56-66% every year since 2021, US ~2%), JGB yield curve, BOJ meeting calendar, and earnings anchors. Confirmed facts only, no predictions.

Premium Asia-session crypto-finance report: kimchi premium, funding-rate regime, momentum signals, and Korea market context from a live 24/7 trading system.

Asia-session crypto market snapshot for AI agents: kimchi premium, funding-rate regime signal, and BTC/ETH Asia-hours momentum from a live 24/7 trading system.

Ask a question about Alice's Adventures in Wonderland for a tutoring agent, quiz generator, or reading app — get back the most relevant passages from the book itself, with chapter and location citations. Retrieval only, full-text search over the real book, not a generated summary or answer. No license, no API key required.

Ask a question about The Art of War and get back the most relevant passages from the text itself, with chapter and location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

LLM completion at a flat price — no signup, no API keys, no token math. Body: {prompt (required), system?, max_tokens? (<=512), temperature?}. Runs Anthropic's Claude Haiku (current cheapest tier); prompt up to 5000 utf-8 bytes (~1000 English words). Stateless; prompts are not logged or retained. Returns {model, text, stop_reason, usage}. Use for summarization, classification, extraction, rewriting, or quick reasoning mid-pipeline.

Ask a question about Dracula and get back the most relevant passages from the book itself, with chapter and location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

Ask a question about Frankenstein and get back the most relevant passages from the book itself, with chapter and location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

Ask a question about Grimms' Fairy Tales and get back the most relevant passages from the book itself, with chapter and location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

Ask a question about Marcus Aurelius's Meditations and get back the most relevant passages from the text itself, with location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

Ask a question about Moby-Dick and get back the most relevant passages from the book itself, with chapter and location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

Ask a question about Pride and Prejudice and get back the most relevant passages from the book itself, with chapter and location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

Ask a question about The Adventures of Sherlock Holmes and get back the most relevant passages from the book itself, with chapter and location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

Ask a question about Plato's Republic and get back the most relevant passages from the text itself, with location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

Ask a question about The Adventures of Tom Sawyer and get back the most relevant passages from the book itself, with chapter and location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

Ask a question about Thoreau's Walden and get back the most relevant passages from the text itself, with chapter and location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

Ask the Time Lord a temporal question

Assess an x402 counterparty before paying. POST {target:{payto_address}, payment_context?, policy?}; payto may be a 0x EVM (Base) or base58 Solana seller. Returns risk_score 0-100, decision allow/review/block, confidence, coverage, per-dimension signals, key_factors (what drove the score), a ready-to-apply recommended_policy and a risk-priced recommended_bond. Scored from on-chain settlement behaviour, with OFAC sanctions as a hard block.

Independent website QA and pre-handover verification for AI agents. Submit one public website URL. Atinamos loads the real site in desktop and mobile Chromium, checks HTTP and browser failures, failed requests, console errors and warnings, captures screenshots, and returns machine-readable evidence. Poll the returned status_url for results.

Partner pricing catalog

Atomic canonical resolution for the registered Robbie George Biography Plate™ identifier. x402 payment grants one endpoint-level retrieval only. It does not grant training, embedding, bulk ingestion, redistribution, resale, synchronization, private-dataset construction, derivative-dataset creation, or Robbie's Razor framework implementation rights.

Fresh probe of your endpoint plus an Ed25519-signed quality attestation (compact JWS, 24h TTL) you can embed in your 402 responses to raise buyer conversion.

Return a signed spot price for a token in a quote currency (default USD) from a public keyless source (CoinGecko). The JWS-HS256 envelope is a provenance receipt an agent keeps for every few-cent call, verifiable via /verify.

Signed USDC/EURe spot rate read directly from the EURe/USDC 0.30% Uniswap v3 pool on Polygon (mid-price from sqrtPriceX96). The on-chain rate behind the euro off-ramp; the envelope carries the exact eth_call slot0() so the number is independently re-checkable. Excludes the pool fee and slippage.

Call a Chainlink aggregator latestRoundData directly on Base and return the round with a signed JWS-HS256 receipt. Pass a known pair (ETH/USD, BTC/USD, USDC/USD, DAI/USD, LINK/USD) or an explicit aggregator address; the number is itself on-chain and re-checkable from the feed address + block in the envelope.

Read balanceOf for a token/holder pair on Base at the current block and return the balance with a signed JWS-HS256 receipt. The envelope carries the exact eth_call (contract, calldata, block) so anyone can re-run it against any Base node.

Read a transaction receipt on Base, compare it against the head block, and return status (success/failed/pending), the block it landed in and a confirmation count, wrapped in a signed JWS-HS256 receipt. Independently re-checkable from the tx block + head block in the envelope.

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident reference data for agents that must prove what they knew when they acted.

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident reference data for agents that must prove what they knew when they acted.

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident reference data for agents that must prove what they knew when they acted.

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident reference data for agents that must prove what they knew when they acted.

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident reference data for agents that must prove what they knew when they acted.

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident reference data for agents that must prove what they knew when they acted.

Attested LLM inference: gpt-4o-mini chat completion plus a post-quantum signed, Hedera-anchored attestation binding the prompt hash, response hash, exact model version, and timestamp. Evidence of which model said what, when — for agents whose decisions may be questioned later.