STAGINGThis is a preview of nitrograph.com. Actions here hit the production API.
Catalog

Every agent-payable API.

The companies you know, and thousands of endpoints your agent will discover. The catalog groups the network's 26,500+payable services under the companies that operate them — one company row can carry many service endpoints. Placement can't be bought.

All APIs

25,453 APIs
APICompanyCategoryPrice / callStatus
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.01listed
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.01listed
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.01listed
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.01listed
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.01listed
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.01listed
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.01listed
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.01listed
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.01listed
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.01listed
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.001listed
Pay-per-use EBT screening endpoint
Pay-per-use EBT screening endpoint
energybilltoolkit.co.uk-$0.001listed
PayGuard
Sanctions screen for one crypto address, for agents and apps that send payments: exact match against all 1050 digital currency addresses in the official US Treasury OFAC SDN list (EVM case-insensitive). Returns sanctioned true/false, matching SDN entity, programs and list date, a chain guess and checksum validity, plus the list date. Informational, not legal advice.
youraitools.co-$0.001listed
PayPerScreen
Crypto address screening: OFAC sanctions, stablecoin freezes and known hack proceeds
payperscreen.com-$0.02listed
PayPerScreen
IP risk check (beta)
payperscreen.com-$0.01listed
Payee screening
Fast check of a payee before an agent pays it: OFAC SDN match on the address, account type (wallet, delegated wallet or contract) and nonce on Base, Ethereum, Arbitrum, Optimism or Polygon, and optionally the payee domain's age and trust flags. One block, review or pass verdict with reasons. Screening aid, not legal advice. Use before an x402 or USDC payment to an unfamiliar address; holdings and wallet heuristics: check_counterparty.
workers.dev-$0.005listed
Payers API
Negotiated prices for one billing code in one area, per canonical payer and plan type
spencermcw.com-$0.02listed
Payload Check
Payload Check: data-quality filter for agents. Send any payload (tool/API output, scraped page, LLM answer, generated code, JSON, CSV) and get a 0-100 quality score, pass/warn/fail, tags and concrete issues: invalid or truncated JSON (with auto-repair), JSON Schema mismatches, syntax errors, bot-challenge/captcha/404 scrapes, LLM refusals, placeholders, repetition loops, mojibake. Deterministic, no LLM, payload not stored.
vercel.app-$0.01listed
Payment API
Verify a Base transaction actually did what a counterparty says it did: confirmation depth, success or revert, value, token, sender and recipient. Use it to confirm an inbound payment before releasing goods or data.
chainverdict.xyz-$0.02listed
Payment Arrival Alert API
Payment arrival alert: watches an XRP Ledger address for up to 24 hours and POSTs a signed webhook when a matching payment is final (validated, tesSUCCESS, delivered amount checked), or a watch.expired event if none arrives. Payments that land during restarts are still caught. Useful when waiting on an incoming payment without polling.
fly.dev-$0.05listed
Payment Check API
Verifies that an XRP Ledger payment settled as expected: validation, result code, destination, destination tag, currency, issuer, and the amount actually delivered, which exposes partial-payment tricks. Useful when confirming that a customer or counterparty really paid.
fly.dev-$0.01listed
Payment Feedback API
Checks on chain that you paid an agent in USDC, then builds the ERC-8004 feedback file with that payment as proof, ready for your wallet to send.
agoreum.xyz-$0.50listed
Payment Operator Audit
🆕 Commerce Payments flows are DRIVEN by an operator — it authorizes escrow, captures for merchants and takes the fees. This audits one before you rely on it: 90-day volumes, fees taken, capture-vs-reclaim record (missed capture windows = merchants left unpaid), distinct payers and merchants. verdict: healthy_operator / mixed / sloppy_operator / no_activity. No other tool reads this new Base commerce protocol.
com.tr-$0.05listed
Payment Preflight API
Pre-payment public-chain and caller-context checks for an agent before it pays an x402 resource.
blockchainmoneymap.com-$0.01listed
Payment Verify API
Verifies that a transaction hash settled a USDC payment to a given recipient, returning the parsed transfer and confirmation count.
xhagents.xyz-$0.10listed
Payment-Injection Screen
Payment-Injection Screen by Agentropolis: send text your agent is about to act on (tool result, web page, email, file). Flags payment-looking instructions: pay/transfer requests, fake licence or refundable fees, swapped wallets, token approvals, seed-phrase asks, hidden text. Returns clean/caution/likely_payment_injection with evidence. Advisory only.
vercel.app-$0.01listed
Paypal Usd API
PayPal USD (PYUSD) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network
unykorn.org-$0.001listed
Pc Game Deals Across Stores (steam, Gog, Epic...) API
PC Game Deals Across Stores (Steam, GOG, Epic...). PC game prices across stores (Steam, GOG, Epic, Humble, Fanatical and more): current price per store, retail price, discount and cheapest price ever for a title, or the best current deals.
saylorinnovations.com-$1,000.00listed
Peace Lily (forgiveness) API
Peace Lily (Forgiveness) — Meditation on recovery from neglect for resilience after errors.
substratesymposium.com-$0.01listed
Pearson Korrelationsmatrix API
Pearson-Korrelationsmatrix. Reihen müssen vom Aufrufer zeitlich ausgerichtet sein. Konstante Reihen haben undefinierte Korrelation (null). Alle Zahlen, Kurse und Vorgaben liefert der Aufrufer. Keine eigenen Kursdaten, kein Brokerzugriff, keine Ausführung. Rechenwerkzeug, keine Anlageberatung, keine Empfehlung.
halowerk.com-$0.005listed
Pearson correlation
Pearson correlation coefficient and covariance of two equal-length paired series. Rejected as a clean 400 if the lengths differ or either series has zero variance (correlation undefined).
openverbs.com-$0.004listed
Peer Slice API
Peer slice: Up to 10 ranked agents that pay the same top counterparty as this one. About one ERC-8004 agent on Base, by Agentic Finance Graph. id = token id, slug or bound wallet; an agent never seen paying is a 404 before any payment.
agenticfinancegraph.com-$0.01listed
Peer covenant ranking for a single issuer.
Peer covenant ranking for a single issuer.
run.app-$0.06listed
Pending block
The chain's pending block: how many transactions are queued for the next block, the base fee they will pay, and the gas already used against the limit. This is the node's own view of what is about to be mined, so it answers "is the chain congested right now" without an indexer. Transaction hashes are included when the node returns them. EVM chains: ethereum, base, polygon, arbitrum, optimism.
agent402.tools-$0.001listed
Pendle API
Pendle (PENDLE) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network
unykorn.org-$0.001listed
Penny Army Research
Inventory supplied robots.txt groups, literal rule strings and sitemap declarations; no fetching or permission evaluation.
workers.dev-$0.001listed
Penny Army Research
Apply an RFC 7396 merge patch to supplied JSON with own-property-safe object construction; no stored data is changed.
workers.dev-$0.001listed
Penny Army Research
Replace values at exactly named object keys recursively; no secret detection and no guarantee that unlisted fields are safe to share.
workers.dev-$0.001listed
Penny Army Research
For supplied field names, distinguish absent keys, explicit nulls, blank strings and populated values across JSON records.
workers.dev-$0.05listed
PennyAPI HTTP Header Inspector
Inspect HTTP response headers before an agent trusts or integrates a URL: content type, cache controls, CORS, HSTS, CSP, framing, referrer, permissions policy, server, ETag, and last-modified.
pennyregwatch.com-$0.001listed
PennyAPI Redirect Resolver
Resolve a URL redirect chain before an agent follows a link. Return the final URL, HTTP status, redirect count, and chain for URL verification and safe navigation.
pennyregwatch.com-$0.001listed
PennyAPI Robots Permission Check
Check robots.txt before crawling or scraping a page. Decide whether GPTBot, ClaudeBot, Googlebot, or another crawler may fetch the exact URL and return ALLOW/DENY, winning rule, crawl-delay, sitemap URLs, and live provenance.
pennyregwatch.com-$0.001listed
PennyAPI Web Search
Real-time web search for AI agents. Search the web for current and up-to-date information, news, facts, research, documentation, and sources beyond model training data. Returns ranked structured JSON results with title, URL, description, and position for web grounding, RAG retrieval, research, and fact-finding. Send query, optional limit, and optional freshness as URL parameters. Keyless x402 pay-per-call; no API key, account, or subscription required.
pennyregwatch.com-$0.004listed
PennyAPI Webpage Metadata
Extract webpage metadata for agent research and URL triage: title, description, canonical URL, Open Graph, and Twitter metadata from a public page.
pennyregwatch.com-$0.001listed
PennyAPI x402 Seller Preflight
Preflight an unfamiliar x402 paid API before spending. Validate the live 402 payment challenge, network, USDC asset, amount, payTo recipient, TLS, redirects, manifest presence, latency, and provenance. Returns deterministic GO/REVIEW/STOP and never signs or sends payment to the inspected seller.
pennyregwatch.com-$0.001listed
People API
Get a person's full profile by their CompanyEnrich ID. Returns name, title, company, location, social links, and more.
orthogonal.com-$0.0245listed
People's Court
Deterministic dispute-readiness report with supported lane, composition, published filing-fee quote, consent and evidence requirements, corpus compatibility, and timing warnings. No case is filed and no merits are assessed.
peoplescourt.ai-$10,000.00listed
Pepe API
Pepe (PEPE) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network
unykorn.org-$0.001listed
Per Call Counterparty Lookup API
Per-call counterparty lookup. Pass ?ua=<counterparty-UA>. Returns ONE signed row: has_record (yes/no), payment-attached count, settlement count, class, verdict (known_payer | known_freeloader | low_signal | unknown), with Ed25519 attestation. Pay $0.01 USDC on Base or Solana per call. Call it before every transaction to check if a counterparty has ever paid at this merchant seat. Wallet-based lookup (?wallet=) reserved for v2.
maraventanoindex.com-$0.01listed
Per Condition Card Prices API
Per-condition card prices — Near Mint, Lightly Played, Moderately Played, Heavily Played, Damaged — with lowest listing, shipping-inclusive floor, and median for Pokemon, Magic: The Gathering, Yu-Gi-Oh, Lorcana, and 57 TCGs. Price played and graded inventory accurately.
tcgapi.dev-$0.02listed
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