Every agent-payable API.

Endpoint specially designed for platforms that want to identify transaction data by the transaction title.

Will this transaction go through? Six checks before any gas is spent: gas vs balance, full simulation with the revert reason decoded, stuck nonces, contract or wallet recipient, ERC-20 allowance, and a sanctions screen of the counterparty. Returns send / do not send with every reason.

Transaction receipt by hash on Base mainnet: status, gas used, full logs, L1 fee breakdown, l1_fee_usd/total_fee_usd.

Success/failure status for an Ethereum transaction hash in one call: post-Byzantium receipt status plus contract execution error detail, from Etherscan's V2 API -- catches the 'transaction confirmed but the contract call actually reverted' case a bare confirmation check misses. $0.01/call.

Transaction count/nonce for one Base address for $0.001 USDC via eth_getTransactionCount. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.

Transaction details by hash on Base mainnet.

Access to api/v2/addresses/:address_hash/transactions. List transactions involving a specific address with to-from filtering

What did a company's insiders actually file? Search individual SEC Form 4 transaction lines by ticker, issuer CIK, insider name, direction (buy/sell/other), transaction code (P/S/A/M/F/G), role (officer/director/ten_percent), state, security type, minimum value, or date. Returns the insider, role, security, code, shares, price, and value per filing — the raw feed behind the cluster signal. Public SEC filings as filed — observational, not advice.

Transcribe audio to text in 100+ languages via Whisper. Send a file URL, get an accurate transcript back in one call. Pay per call with USDC (x402) or credits - archtools.dev

Transfer Encoding Check: Transfer Encoding Check checks transfer-coding order and whether chunked appears only last from bounded caller-supplied values without an external provider. Call Transfer Encoding Check before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for Transfer Encoding Check as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party…

Translate a cron expression into plain English (e.g. "Every 15 minutes, weekdays") — the companion to /cron/next.

Translate text into a target language, preserving tone and formatting.

Professional Simplified-Chinese<->English translation of documents and text. Auto-detects direction, preserves formatting, names, and numbers. Offshore/PIPL-guarded (refuses mainland-CN data subjects). BO trust envelope (content hash + scan + provenance) on every deliverable.

Assess operational and weather disruption risk for a supported U.S. commercial airport near a requested time.

Assess missed-connection risk from itinerary times, caller-supplied minimum connection time, and live airport conditions.

Flight compensation eligibility across 7 regimes — EU261, UK261, Canada APPR (incl. s.20 denied boarding), Brazil ANAC 400, Turkey SHY, India DGCA, Israel ASL — plus Montreal Convention baggage claims (effective-dated SDR caps, Art. 31 deadline math): deterministic amounts, legal citations, carrier defenses, evidence list. No LLM — every number is recomputable. Eligible? Get the ready-to-send claim letter at /api/rights/letter ($2.00).

US Treasury yield curve in one call: 1mo/3mo/6mo/1yr/2yr/5yr/10yr/30yr yields, the 10y-2y and 10y-3mo spreads, and a boolean inversion flag on each -- a classic recession/risk-off signal every macro trader watches. Live from FRED's daily constant-maturity Treasury series. Not ticker-specific. $0.01/call.

The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock

Services whose inbound USDC transfer count and inflow are growing across comparable daily windows. The response states how many calendar days of history actually back the comparison. Use this to spot rising demand early. Growth is measured on observed on-chain transfers, not on self-reported revenue.

Trending crypto tokens right now (CoinGecko) with USD price and 24h change. Refreshed every 60s.

Cryptocurrencies trending on CoinGecko right now — the coins agents and humans are searching for most. Returns id, symbol, name, market-cap rank, and price data per coin. No inputs. Use for momentum scanning, narrative detection, and screener loops.

Trending DEX pools on Base: price, volume, liquidity

Trending DEX pools right now on a network (GeckoTerminal): price change, volume, txns. Where the money flows this hour. Params: network (base,eth,solana,bsc,arbitrum,polygon,optimism,avalanche).

Get the five newest spaceflight news stories with titles, summaries, sources, article URLs, images, and publication times.

Triage of 2 known URLs

Trim ends and collapse internal whitespace runs to single spaces — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of Delx routes that alread…

Settle an unexpired TRON Energy quote with USDC. Create the quote first at POST /v1/x402/quotes; no account or API key is required.

Truncate a string to max_chars with optional ellipsis — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of Delx routes that already converted…

Truncate long text in the middle with an ellipsis. Call when you keep start+end context inside UI/log width limits. Returns truncated text and truncated flag for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Truncate text with ellipsis for $0.001 USDC. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.

Vet an x402 server or any URL for scam/phishing/trust in ONE call: transport, content-safety, domain, metadata + x402-compliance sub-scores, each with transparent evidence

RobotsShop Trust Index — live re-probe of one URL

Trust score for an x402 seller.

Trust/verification check for a peaq network machine: credit rating (MCR), bond status, negative-flag status, and on-chain event history. Sourced live from peaq's public MCR API -- pay once instead of building your own peaq chain integration to answer 'is this machine real and in good standing.'

Screen up to 10 addresses in one call: OFAC sanctions check, trust score, risk band and recommendation for each. For vetting a counterparty set before a run of payments, maintaining an allowlist, or auditing wallets you already pay.

Should you approve this contract? Everything in quick, plus static analysis of the bytecode: privileged functions (mint, pause, blacklist, arbitrary withdrawal), proxy and upgradeability detection, dangerous opcodes, DeFi protocol classification and source-verification status.

Is this counterparty safe to pay? Screens the address against the OFAC sanctions list, reads its ERC-8004 reputation with coordinated feedback filtered out, and returns an explainable 0-100 trust score with a proceed / hold / block recommendation. Reports insufficient_data rather than guessing when the evidence is not there.

Where did this address get its money? Walks the funding chain upward and returns the account that ultimately paid for the wallet, plus a cluster id. Two addresses funded from the same account are not independent parties, however new and unremarkable each looks alone — the strongest cheap signal there is that an identity was manufactured. Works on any address, not only registered agents.

The filtered ERC-8004 directory: which registered agents are actually alive, and which accept x402. Roughly 15% of registrations on Base have both a compliant registration file and a declared service — this returns those, rather than making you screen sixty thousand addresses one at a time to find them. 100 agents per page.

What is this agent's reputation actually worth? 92.6% of ERC-8004 feedback on Base is coordinated. This clusters reviewers by funding provenance and caps each cluster at one effective vote, returns every record with its evidence class and flag reasons, and refuses to average ratings that use incompatible scales.

Turkish lira premium: implied vs official USD/TRY via BTC cross-rate

Turn an OpenAPI document into a compact operation index for planning and tool selection. Use it before an autonomous workflow acts on untrusted input, changes an API, retries a request, or evaluates production reliability. Returns bounded machine-readable JSON for $0.002 USDC via x402 on Base. Execution is deterministic, first-party, local-only, stateless, and does not call an upstream provider; structured validation failures are not billed.

Turn mixed human or machine text into production-ready snake_case, kebab-case, camelCase, PascalCase, CONSTANT_CASE, title, lower, or upper text for $0.001 USDC. The deterministic first-party transform runs locally, accepts up to 4,000 characters, returns structured JSON, uses no upstream API, and retains no input.

Turn slugs into Title Case words. Call when you reverse product/path slugs into display labels. Returns title words from slug for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Fetches paginated list of users who retweeted a tweet. Pagination billing: call the first page normally and save billing.requestId from the Orthogonal /v1/run response. For later page, offset, or cursor calls on the same logical search, pass parentRequestId with unchanged non-pagination parameters. Valid continuation calls still get their own request IDs and quoted price, but are charged 0. Changing filters starts a new billable request.

Get media posts from an X community.

Get a paginated timeline of replies from an X user.

Get complete public information for an X community.

List the geographic locations available for Twitter/X trends, including WOEIDs, place types and country details.

Get the extended About information for a public X user.