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 28,000+payable services under the companies that operate them — one company row can carry many service endpoints. Placement can't be bought.

All APIs

28,126 APIs
APICompanyCategoryPrice / callStatus
Twitter/X API
Get complete public information for an X list.
x402atlas.com-$0.005listed
Twitter/X API
Get the complete public data for one X post.
x402atlas.com-$0.005listed
Twitter/X API
Get complete public information for an X community.
x402atlas.com-$0.005listed
Twitter/X API
Search public X lists by query.
x402atlas.com-$0.005listed
Twitter/X API
List the geographic locations available for Twitter/X trends, including WOEIDs, place types and country details.
x402atlas.com-$0.005listed
Twitter/X API
Get a paginated timeline of replies from an X user.
x402atlas.com-$0.005listed
Twitter/X API
Get top or latest posts from an X community.
x402atlas.com-$0.005listed
Twitter/X API
Get a paginated timeline of posts from an X user.
x402atlas.com-$0.005listed
Twitter/X API
Get the extended About information for a public X user.
x402atlas.com-$0.005listed
Two Answers In One Call API
Two answers in one call. Validation: the number is checked against the VIES service of the member state that issued it, with the consultation date returned. Treatment: given the supplier country, the customer country and whether the customer is a business, it states whether the supply is domestic with the local rate, an intra-community B2B supply where the reverse charge shifts the liability to the customer, a B2C supply taxed where the customer sits, or an export outside the EU.
halowerk.com-$0.002listed
Two Checks In One API
Two checks in one. First the arguments are validated against the tool input schema and every violation is reported with its path and a sentence saying what to change. Second, values that satisfy the schema but look wrong are flagged: an unset required field filled with a placeholder like "string" or "TODO", a number at a suspicious order of magnitude, an address that fails its checksum shape, a destructive flag set to true, an empty string where content was expected.
halowerk.com-$0.002listed
Two-sentence horror story
One two-sentence horror story, in English or Spanish, by theme: domestic, technological, cosmic or folk. Returned SPLIT into setup and payoff as well as joined, so a narrating agent can deliver the first line, pause, and then land the second. Takes parameters, returns an id to avoid repeats, and accepts a seed for a reproducible answer.
workers.dev-$0.0025listed
Tx API
Look up a transaction by hash on base, ethereum, arbitrum, optimism, polygon, bsc: status (success/reverted/pending), block and timestamp, from/to, value, gas used, fee in native coin and USD, method selector, created contract, and decoded ERC-20 transfers with token symbols and amounts. Transaction and receipt in one call.
dt0ur.online-$0.01listed
Tx Explain API
Plain-English explanation of any transaction on Base, Ethereum, Arbitrum or Optimism: what happened, who sent what to whom (decoded token transfers with amounts and symbols), the method called, fee paid, and success/failure. Returns a summary plus the structured facts it is based on.
sslip.io-$0.015listed
Tx History API
Normalized transactions for an address on a chain (Alchemy Transfers API). x402-paid, USDC on Base.
cortexcloud.org-$0.004listed
Tx Status API
Transaction receipt status/block/confirmations on Base or Ethereum via eth_getTransactionReceipt. Validates 0x hash BEFORE settle.
vercel.app-$0.002listed
Tx Status API
Status of a transaction on Base, Ethereum, Arbitrum or Optimism: pending/success/failed, block, confirmations, from/to, gas used, log count. Deterministic, no LLM.
sslip.io-$0.004listed
Tx Status API
On-chain transaction receipt for any Base tx (?tx=0x...): status, block, gas used, from/to, logs count — agents verify their own settlements and counterparty claims
workers.dev-$0.02listed
TxGuard
Explain and preflight an unsigned Base transaction, EIP-712 typed data, or an EIP-3009 x402 payment authorization before you sign it. Decodes intent against verified ABIs, resolves proxies, classifies approvals, and checks a payment authorization against the quote it claims to pay: recipient, amount, asset, chain, freshness, and nonce replay. Returns unknown rather than guessing when a selector is ambiguous. Not a guarantee that a transaction is safe or profitable.
schemasure.com-$0.01listed
TxSim Decoder
One pre-sign safety verdict (GREEN, REVIEW or BLOCK) fusing transaction, signature, address, URL and token checks for AI wallet agents.
cyberwarex.com-$0.02listed
TxSim Decoder
Decode raw EVM calldata into a named function, signature and arguments, plus security risk flags (unlimited token approval, setApprovalForAll, ownership transfer, unknown selector, native value transfer). Keyless, deterministic, no simulation - the cheap way for an agent to understand and risk-screen a piece of calldata before signing.
cyberwarex.com-$0.002listed
TxSim Decoder
Simulate an EVM transaction before signing. Decodes the calldata into a named function with arguments and security risk flags, AND runs a keyless static eth_call preview to tell you whether the transaction would succeed or revert (with the decoded revert reason). Use it to catch a failing or malicious transaction before you broadcast it. Read-only, no keys, no node infra. Asset-level change tracing is v2.
cyberwarex.com-$0.005listed
Typed judgment
Ask a typed question about any content and get an answer your code can branch on, not prose to parse. Three question types: choice (pick one of your named options, with a probability for each and a confidence), score (a position on levels you describe), and noul (a yes/no as a probability from 0 to 1). Up to 8 questions per call, answered in parallel over one piece of state. Model-backed, not deterministic.
agent402.tools-$0.001listed
Typosquat Proximity API
Ranks edit-distance proximity between a candidate name and supplied popular package names. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.
halowerk.com-$0.004listed
Typosquat Radar API
Generates the typical misspellings of a package name and looks up every one of them in the registry. Generation rather than search is deliberate: most of the seven ecosystems have no search API, and the ones that do rank by popularity instead of similarity, so a fresh squat with no downloads never appears.
halowerk.com-$0.006listed
Tz API
Call when an agent needs the UTC offset of an IANA time zone on a date, including daylight saving. Not a live clock.
agentshield.live-$0.003listed
U.S. Regs & Disclosures Pack
Use when an agent must track new U.S. rules, proposed rules, agency notices and fresh SEC disclosures. Input: optional q (topic), agency (Federal Register slug), doc_type, form (8-K, 13F-HR, NPORT-P...), source, days, limit. Output: JSON Federal Register documents (type, agencies, abstract, effective/comment dates, CFR, links) and latest SEC filings by companies/funds (form, filer, CIK, filed, link). Metadata only. Example: ?q=stablecoin&days=30
1gateway.dev-$0.0045listed
U2A
Reconciles invoice, purchase-order, or ledger records and returns traceable missing, extra, and changed fields.
u2a.com.au-$0.01listed
U2A
Matches vendor, fund, company, or account names across two datasets using normalized and conservative fuzzy matching.
u2a.com.au-$0.005listed
U2A
Flags exact and normalized duplicate invoices using invoice number, vendor, amount, and date fields with source indexes.
u2a.com.au-$0.01listed
U2A
Token holder-value check: holder revenue yield vs emissions dilution, net real yield, and an annualized unlock-dilution stress scenario over the next 90 days. Also P/holder-revenue, P/fees, FDV and unlock schedules. Deterministic; caller-asserted data status with reason for every top-level calculated figure; hashed and optionally signed. No LLM.
u2a.com.au-$0.02listed
U2A
Compare any two portfolio or SEC-style holdings datasets (up to 1000 rows each) by CUSIP, ticker, ISIN, or internal identifier. Return opened, closed, increased, decreased, and field-level changed positions with totals and weight changes.
u2a.com.au-$0.01listed
U2A
Deterministic portfolio performance attribution vs BTC, ETH, stETH or any benchmark. Returns Modified Dietz and money-weighted (XIRR) returns, per-position contribution and alpha, per-input source status and per-position data status with the reason, and a hashed (optionally EIP-191 signed) record of the calculation. No LLM.
u2a.com.au-$0.01listed
U2A Web3 Recommendation Engine
DeFi & Web3 Geo-Node Recommendation Engine
u2a.com.au-$0.01listed
UFLPA supply-chain tracing check
Uyghur Forced Labor Prevention Act high-priority sector tracing depth.
fly.dev-$0.01listed
UK Bank Rate & SONIA
United Kingdom: Bank of England official Bank Rate and SONIA (overnight index), latest value and daily series. Source: Bank of England Database under the Open Government Licence v3.0; SONIA attribution: SONIA and/or SONIA Compounded Index data licensed under the Open Government Licence v3.0 and copyright the Governor and Company of the Bank of England.
vextorium.com-$0.003listed
UK Company Brief
UK company profile and key dates from the Companies House public register, with its LEI if it has one and the location and areas of its registered-office postcode, as JSON. No officers or PSCs.
pennydatahq.com-$0.02listed
UK Company Filing History
Recent filings and key dates for a UK company from the Companies House public register: accounts and confirmation statement dates and the latest filings by date and form type, as JSON. Officer and PSC filings are excluded.
pennydatahq.com-$0.005listed
UK Company Lookup
UK company profile from the Companies House public register, returned as JSON.
pennydatahq.com-$0.005listed
UK Food Hygiene Ratings
Food hygiene ratings for food businesses at a UK postcode from the Food Standards Agency: business name and type, address, rating and the date of the inspection it is based on, as JSON.
pennydatahq.com-$0.002listed
UK Fuel Prices
UK fuel prices per forecourt for one postcode district. Query parameter: postcode (e.g. SW1A1AA or SW1A). Returns JSON: stations, price per fuel type (E10, B7...), timestamps. Source: GOV.UK Fuel Finder. Contains public sector information licensed under the Open Government Licence v3.0. Independent; not an official government service, not endorsed by GOV.UK. Prices as published, expected pence per litre (unit unverified). Payments are USDC on Base.
workers.dev-$0.01listed
UK Fuel Prices (testnet)
UK fuel prices per forecourt for one postcode district. Query parameter: postcode (e.g. SW1A1AA or SW1A). Returns JSON: stations, price per fuel type (E10, B7...), timestamps. Source: GOV.UK Fuel Finder. Contains public sector information licensed under the Open Government Licence v3.0. Independent; not an official government service, not endorsed by GOV.UK. Prices as published, expected pence per litre (unit unverified). Testnet payments. A notice field saying SAMPLE means invented test data.
workers.dev-$10,000.00listed
UK Grid Carbon Intensity
Great Britain electricity carbon intensity (gCO2/kWh) now, nationally or for a postcode region, with the generation mix (wind, gas, nuclear, solar, imports) and a half-hourly forecast up to 48h including the lowest-carbon slot. Use to schedule EV charging, heat pumps or compute jobs.
onrender.com-$0.002listed
UK HM Land Registry sold property prices by postcode.
UK HM Land Registry sold property prices by postcode.
railway.app-$0.001listed
UK HM Land Registry sold property prices by postcode.
UK HM Land Registry sold property prices by postcode.
payapi.market-$0.001listed
UK OPSS product safety check
GB vs NI marking regime and UK responsible person checks.
fly.dev-$0.01listed
UK Postcode Lookup
UK postcode lookup (ONS Postcode Directory via postcodes.io): lat/lon, country, region, local authority, ward, parliamentary constituency, NHS ICB, police force, LSOA. Unknown postcode = not charged.
elestio.app-$0.002listed
UK Postcode Lookup
Location and areas for a Great Britain postcode: latitude and longitude, ward, district, constituency and region, as JSON.
pennydatahq.com-$0.002listed
UK Postcode Lookup
Location and areas for a Great Britain postcode: latitude and longitude, ward, district, constituency and region, as JSON.
vercel.app-$0.002listed
UK planning applications near a postcode.
UK planning applications near a postcode.
payapi.market-$0.001listed
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