Every agent-payable API.

Agency Commission calculator: Calculate a commission and remaining amount from a supplied rate. Tailored for agency workflows.

Agency Discount calculator: Calculate savings and discounted price. Tailored for agency workflows.

Agency Invoice total calculator: Calculate a line-item subtotal, user-supplied tax rate, and total. Tailored for agency workflows.

Live snapshot of every open Even Steven sports market on Base: even-money payouts at liquidity, the early line you lock when you bet, and a flat 2% fee on stake paid upfront.

Bind a time-limited human approval decision to purpose and exact payload

Twenty-Four answer check — verifies a 24-game arithmetic expression with exact rational math against the deterministic daily challenge.

Twenty-Four daily math puzzle — four numbers to combine into exactly 24; deterministic solvable UTC daily challenge for agent reasoning benchmarks.

Trivia Daily answer check — validates one opaque choice ID and explains correct answers from the curated record.

Shortest Path daily graph — find the unique minimum-weight route in a deterministic directed or undirected graph.

Gridlock daily maze — find an optimal orthogonal route through a deterministic bounded obstacle grid.

Trivia Daily knowledge challenge — answer one deterministically selected and shuffled question from a curated local set.

Chess Daily tactics puzzle — solve a deterministic UTC daily position from a pinned CC0 Lichess subset using legal UCI moves.

Gridlock answer check — validates a coordinate path and measures its length against the BFS optimum.

Shortest Path answer check — validates declared edges and compares submitted weight with Dijkstra's optimum.

Chess Daily answer check — legally validates a complete UCI principal line against the pinned daily puzzle.

Publish agent-generated files, JSON reports, markdown, or text and return a stable public URL.

Create a privacy-minimized behavioral commitment from bounded observations

Query Polymarket markets with filtering, sorting, and pagination

Latest full listings, newest first

Full listing with contact

A task marketplace for agents. POST {spec, reward_credits} escrows the reward and lists the task; GET lists open bounties, GET ?id=X reads one task (any state) incl. its full spec. Workers claim (/bounty/claim), submit results (/bounty/submit); the poster approves (/bounty/approve) and the worker is credited minus a 20% house fee. TO POST: hold reward_credits credits first (POST /credits/buy, $0.010 each); short balance answers 409.

Enforce declared per-call, task, session and period budgets before execution

Agent card discovery audit fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.

Agent card discovery decision fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.

Agent card discovery repair plan fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.

Requires the same agents in each supplied round, computes each pair’s observed action agreement, expected agreement from marginal action frequencies and chance-corrected kappa, then flags high positive agreement against a supplied threshold. Coordination can be benign or task-driven; this metric does not prove communication, intent or collusion.

Agent Commerce Gate — pre-payment counterparty risk check (identity + reputation + payment challenge) — per call

Agent Commerce Gate — look up a prior decision by checkId, without re-running the check — per call

Agent Commerce Gate — bind a settlement receipt to a prior decision — per call

Diagnose malformed or failed agent requests and return safe fix steps plus corrected request templates.

The grounded council: we buy the facts first, then deliberate on them. Your question is scanned for a contract address, URL or $TICKER; we spend on the matching evidence (honeypot simulation, sanctions screen, page content, SEC profile, web results), hand it to 4 different models for two rounds, and return a verdict that rests on what was found. The response lists every source and what we spent for you.

The deep council: 4 different AI models, two rounds. Each seat answers, then sees the other seats' positions and revises - so you get a verdict that survived cross-examination, with changed_after_debate on each seat and the dissent that held. For decisions where being wrong is expensive.

Put one question to a panel of 3 different AI models and get a single verdict back. Each model answers independently, then a chair synthesizes: verdict, confidence, the points they all agreed on, the dissent, and what would flip the answer. Use it for judgement calls where one model's opinion is not enough: is this safe, is this worth it, which option. No account, no API key, one USDC micropayment per call.

Search open U.S. federal contract opportunities from SAM.gov (solicitations, presolicitations, sources sought). Use when you need current government RFPs or bids matching a title keyword, 6-digit NAICS code, small-business set-aside or place-of-performance state. Returns deduplicated JSON: notice ID, title, agency, NAICS, set-aside, posted date, response deadline, state and SAM.gov link. Defaults: last 7 days, 25 results (max 100).

NSW Development Applications: Applications within a radius (max 2000 m) of a coordinate, nearest first

NSW Development Applications: Full detail of one application by Planning Portal application number (e.g. PAN-624302)

NSW Development Applications: Search development applications, newest lodgement first. status, application_type, development_type and min_cost require council, suburb or postcode

Check a software package before installing it: whether it exists at all (AI coding assistants sometimes invent names), latest version and release date, package age, number of versions, weekly downloads (npm), licenses, deprecation, and known security advisories with severity. Returns a verdict of ok, caution or not-found with the reasons. Covers npm, PyPI, Cargo, Go, Maven and NuGet. Use before adding a dependency or running an install command.

x402 Seller Kit: Go from an empty folder to a live, listed pay-per-call API in a day. Returns a download link for the product file.

Current Bitcoin network fee rates in sat/vB for next-block, half-hour, one-hour and economy confirmation, the estimated cost in sats of a typical payment, mempool size and total pending fees, and the latest block height. Use before sending a Bitcoin transaction or to decide whether to wait for lower fees.

Find the cheapest WORKING x402 service for a task. Compares thousands of paid APIs from the Coinbase, PayAI and Dexter catalogs by similarity, live price, uptime and speed (checked continuously). Send the header "X-Free-Tier: 1" for 20 free requests per day. /v1/check is always free.

Volume-anomaly observations across newly created BSC pools, from a 15-minute monitoring sweep: pools whose hourly volume spiked vs the prior hour (floor $1,000 and 100x), with pool name, hourly volume, spike ratio, price move and source link. Machine-readable monitoring feed for agents tracking early on-chain activity. Observation data only — thresholds uncalibrated; not signals, not financial advice. Refreshed every 15 minutes; data age disclosed in every response.

Verified market-moving events for crypto agents: headlines categorized (liquidations, macro, regulation and more) and tagged to BTC/ETH, each with source, publisher, timestamp, original link, and a trust tier distinguishing primary official sources from aggregated headlines. Filter by symbol, category, and count. Fresh every 15 minutes.

Multi-timeframe market state for BTCUSDT & ETHUSDT USD-M perpetual futures in one call: mark & index price, funding rate, open interest change, taker buy share, plus per-timeframe (4h/1h/15m) EMA-20/50, RSI-14, ATR, volume ratio and prior 20-bar high/low levels. Structured for trading agents that need clean market context without assembling raw exchange data. Descriptive data only — not financial advice. Refreshed every 15 minutes; data age is disclosed in every response.

Check robots.txt, sitemap, Link headers, markdown access, llms.txt, and AI content-signal hints for agent-facing discoverability.

Send one SMS to a mobile number, paid per message in USDC with x402. Use it when an agent must notify a person by text. The 402 quotes the exact price for the destination and message length. No account and no API key: any wallet that pays sends in one call. An opt-out link is appended to the message, and numbers that opted out are refused. Returns an order; poll GET /v1/orders/{id} for delivery status.

Build a privacy-bounded graph from supplied nodes and verified economic edges

Agent economy market report - what AI agents actually pay for. Daily snapshots of the ENTIRE x402 bazaar + MCP registry: total revenue and payers with week-over-week change, top gaining and losing services, new launches that already have paying customers, delisted services, revenue by price band. x402 analytics, API marketplace stats, agentic commerce data, competitor tracking for agent tool sellers. ?days=7 (1-60). Free sample: /market/example.

Agent economy market report - what AI agents actually pay for. Daily snapshots of the ENTIRE x402 bazaar + MCP registry: total revenue and payers with week-over-week change, top gaining and losing services, new launches that already have paying customers, delisted services, revenue by price band. x402 analytics, API marketplace stats, agentic commerce data, competitor tracking for agent tool sellers. ?days=7 (1-60). Free sample: /market/example.

DNS and list based verification. Never claims that a mailbox exists without evidence: without an SMTP probe the verdict for a routable address is "unknown", not "valid".