Free check/board/name; paid bid/report 0.05, 1c fx/wx/lookups, news 0.001.
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Paid $0.01 USDC exact on Base: academic paper search via public arXiv Atom API. q= required (or id=2605.11781). Optional cat=cs.CR, sort=relevance|date|updated, hits=1..8. Metadata only; no PDF fetch. Complements /hn. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
Search phrase (aliases query= search=). Required unless id=.
arXiv id (2605.11781 or arXiv:2605.11781).
arXiv category, e.g. cs.CR or cs.AI.
1..8 results (default 5).
relevance (default), date, or updated.
Paid $0.01 USDC exact on Base: academic paper search via public arXiv Atom API. q= required (or id=2605.11781). Optional cat=cs.CR, sort=relevance|date|updated, hits=1..8. Metadata only; no PDF fetch. Complements /hn. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| q | string | Search phrase (aliases query= search=). Required unless id=. |
| id | string | arXiv id (2605.11781 or arXiv:2605.11781). |
| cat | string | arXiv category, e.g. cs.CR or cs.AI. |
| hits | integer | 1..8 results (default 5). |
| sort | string | relevance (default), date, or updated. |
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Search phrase (aliases query= search=). Required unless id=."
},
"id": {
"type": "string",
"description": "arXiv id (2605.11781 or arXiv:2605.11781)."
},
"cat": {
"type": "string",
"description": "arXiv category, e.g. cs.CR or cs.AI."
},
"hits": {
"type": "integer",
"description": "1..8 results (default 5)."
},
"sort": {
"type": "string",
"description": "relevance (default), date, or updated."
}
}
}Paid $0.05 USDC exact on Base: bid on the pay-to-rank board. Each verified bid ADDS to that origin's 24h total. Listing URL must return HTTP 402 (or be this origin). http(s) only. No telegram/discord/whatsapp. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0. REST POST /bid is the same SKU.
| Argument | Type | Description |
|---|---|---|
| url* | string | http(s) listing URL that returns HTTP 402, or this origin. |
| name | string | Optional short name. Max 80 chars. |
| slot | string | Optional slot. Max 40 chars. |
| topic | string | Optional topic. Max 40 chars. |
| description | string | Optional one-line description. Max 200 chars. |
{
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "http(s) listing URL that returns HTTP 402, or this origin."
},
"name": {
"type": "string",
"description": "Optional short name. Max 80 chars."
},
"slot": {
"type": "string",
"description": "Optional slot. Max 40 chars."
},
"topic": {
"type": "string",
"description": "Optional topic. Max 40 chars."
},
"description": {
"type": "string",
"description": "Optional one-line description. Max 200 chars."
}
}
}Paid $0.01 USDC exact on Base: US federal business-day calendar. date=YYYY-MM-DD (default today UTC) or start=&end= range (cap 366). Holidays 2025-2027 baked in, observed weekday rules. No API keys. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| tz | string | IANA timezone. Default America/Denver. |
| end | string | Range end YYYY-MM-DD (inclusive). Requires start. Cap 366 days. |
| date | string | YYYY-MM-DD. Optional; default today UTC. |
| start | string | Range start YYYY-MM-DD (inclusive). Requires end. |
{
"type": "object",
"properties": {
"tz": {
"type": "string",
"description": "IANA timezone. Default America/Denver."
},
"end": {
"type": "string",
"description": "Range end YYYY-MM-DD (inclusive). Requires start. Cap 366 days."
},
"date": {
"type": "string",
"description": "YYYY-MM-DD. Optional; default today UTC."
},
"start": {
"type": "string",
"description": "Range start YYYY-MM-DD (inclusive). Requires end."
}
}
}Paid $0.01 USDC exact on Base: block header via public RPC. Default n=latest. Accepts latest|earliest|safe|finalized, a decimal, 0x number, or hash=. Rejects pending. Returns number, hash, timestamp, miner, txCount, gasUsed, gasLimit, baseFee. Unknown id is paid 200 with found:false. No full txs. Not a mempool tip. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| n | string | Block tag or number. Default latest. |
| hash | string | Optional 0x-prefixed 32-byte block hash. |
{
"type": "object",
"properties": {
"n": {
"type": "string",
"description": "Block tag or number. Default latest."
},
"hash": {
"type": "string",
"description": "Optional 0x-prefixed 32-byte block hash."
}
}
}FREE pay-to-rank board by AI Nock. Rank listings by USDC bid total in the last 24 hours. Empty JSON still sells: how/next point at unpaid POST /bid $0.05, POST /name $0.05, free GET /check (listing gate), GET /find $0.01. payTo on the JSON. No self-pay. Does not spend money. REST GET /board is the same SKU.
No arguments.
{
"type": "object",
"properties": {}
}FREE x402 wash/honesty probe by AI Nock. Fetches an http(s) 402 URL with no payment headers. Returns payTo, amount, network, asset, facilitator if present, payToKind, a short risk note, and JSON next always: report $0.05, bid $0.05, name $0.05, board free, check_batch $0.01, quote $0.01; when has402, report/bid URLs are prefilled and next.sanctions $0.01. Use before paying any x402 resource. Does not spend money.
| Argument | Type | Description |
|---|---|---|
| url* | string | http(s) URL to inspect. No payment headers are sent to the target. |
{
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "http(s) URL to inspect. No payment headers are sent to the target."
}
}
}Paid $0.01 USDC exact on Base: batch x402 honesty probes (max 10 URLs). Each result is the same shape as free check (next.report $0.05, next.bid $0.05, next.name $0.05, next.board free, next.check_batch $0.01; when has402 also next.sanctions $0.01). GET /check stays free for one URL. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0. REST POST /check/batch is the same SKU.
| Argument | Type | Description |
|---|---|---|
| urls* | array | 1-10 public http(s) URLs. Same SSRF-safe rules as check. No payment headers are sent to the targets. |
{
"type": "object",
"required": [
"urls"
],
"properties": {
"urls": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 10,
"minItems": 1,
"description": "1-10 public http(s) URLs. Same SSRF-safe rules as check. No payment headers are sent to the targets."
}
}
}Paid $0.01 USDC exact on Base: unix cron parser. expr required. Optional tz (default UTC) and n (1-20, default 5). Returns next fire times in UTC and America/Denver. No API keys. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| n | integer | Next fire count 1-20. Default 5. |
| tz | string | IANA timezone the cron is interpreted in. Default UTC. |
| expr* | string | Unix crontab 5-field (minute hour day-of-month month day-of-week). |
{
"type": "object",
"required": [
"expr"
],
"properties": {
"n": {
"type": "integer",
"description": "Next fire count 1-20. Default 5."
},
"tz": {
"type": "string",
"description": "IANA timezone the cron is interpreted in. Default UTC."
},
"expr": {
"type": "string",
"description": "Unix crontab 5-field (minute hour day-of-month month day-of-week)."
}
}
}Paid $0.001 USDC exact on Base: public crypto RSS recap (CoinDesk, The Block, Decrypt, Base blog). Optional topic filter. Cache ~15 minutes. No API keys. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| topic | string | Optional case-insensitive filter on title/summary/source. Max 80 chars. |
{
"type": "object",
"properties": {
"topic": {
"type": "string",
"description": "Optional case-insensitive filter on title/summary/source. Max 80 chars."
}
}
}Paid $0.01 USDC exact on Base: CVE / NVD vulnerability lookup via public NIST NVD 2.0. id=CVE-2021-44228 or q=log4j. Optional severity=low|medium|high|critical, hits=1..8. NVD-only metadata; no exploit/PoC. Complements /sanctions /tsec. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| q | string | Keyword search (aliases query= search= keyword=). Required unless id=. |
| id | string | CVE id (CVE-YYYY-NNNN). Aliases cve= cve_id=. Required unless q=. |
| hits | integer | 1..8 results (default 5). |
| severity | string | low, medium, high, or critical. |
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Keyword search (aliases query= search= keyword=). Required unless id=."
},
"id": {
"type": "string",
"description": "CVE id (CVE-YYYY-NNNN). Aliases cve= cve_id=. Required unless q=."
},
"hits": {
"type": "integer",
"description": "1..8 results (default 5)."
},
"severity": {
"type": "string",
"description": "low, medium, high, or critical."
}
}
}Paid $0.01 USDC exact on Base: DexScreener pairs by token address=0x or search q=. Optional chain= filter. Ranked by liquidityUsd (max 5). Not investment advice. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| q | string | Search query (search mode). |
| chain | string | Optional chain filter (default base for address mode). |
| address | string | Token contract 0x + 40 hex (token mode). |
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Search query (search mode)."
},
"chain": {
"type": "string",
"description": "Optional chain filter (default base for address mode)."
},
"address": {
"type": "string",
"description": "Token contract 0x + 40 hex (token mode)."
}
}
}Paid $0.01 USDC exact on Base: DNS/RDAP/TLS/SPF/DMARC dossier for a public hostname. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| host* | string | Public DNS hostname (not a URL, not an IP). |
{
"type": "object",
"required": [
"host"
],
"properties": {
"host": {
"type": "string",
"description": "Public DNS hostname (not a URL, not an IP)."
}
}
}Paid $0.01 USDC exact on Base: email syntax + MX via DoH (no SMTP). Disposable domains and MX-absent = invalid. Fail closed on lookup errors. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| addr* | string | Email address (local@public-hostname). Max 254 chars. |
{
"type": "object",
"required": [
"addr"
],
"properties": {
"addr": {
"type": "string",
"description": "Email address (local@public-hostname). Max 254 chars."
}
}
}Paid $0.01 USDC exact on Base: resolve an ENS or Basename (must end in .eth, including foo.base.eth). Public HTTP resolvers. Unresolved names return resolved:false after payment. Not POST /name (that is this origin's 30-day agent registrar). payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| name* | string | ENS name ending in .eth (vitalik.eth, foo.base.eth). |
{
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"description": "ENS name ending in .eth (vitalik.eth, foo.base.eth)."
}
}
}Paid $0.01 USDC exact on Base: search this origin's free + paid catalog by keyword q=. Optional limit=1..20. House discovery (board/bid/name + SKUs). Not a global index. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| q* | string | Search keywords (e.g. gas, token security, board). |
| limit | integer | Max results 1..20 (default 8). |
{
"type": "object",
"required": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "Search keywords (e.g. gas, token security, board)."
},
"limit": {
"type": "integer",
"description": "Max results 1..20 (default 8)."
}
}
}Paid $0.01 USDC exact on Base: Crypto Fear & Greed Index via public alternative.me. Optional limit=1..30 (default 1). Not investment advice. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| limit | integer | History length 1-30 (default 1 = current). |
{
"type": "object",
"properties": {
"limit": {
"type": "integer",
"description": "History length 1-30 (default 1 = current)."
}
}
}Paid $0.01 USDC exact on Base: fiat FX via Frankfurter/ECB. from= (default USD), to= comma list (default EUR), amount= (default 1). Fiat only — use /price for crypto. Not investment advice. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| to | string | Quote ISO currencies, comma-separated (default EUR). |
| from | string | Base ISO currency (default USD). |
| amount | number | Amount of from-currency (default 1). |
{
"type": "object",
"properties": {
"to": {
"type": "string",
"description": "Quote ISO currencies, comma-separated (default EUR)."
},
"from": {
"type": "string",
"description": "Base ISO currency (default USD)."
},
"amount": {
"type": "number",
"description": "Amount of from-currency (default 1)."
}
}
}Paid $0.01 USDC exact on Base: live Base gas oracle via public RPC (gasPrice, maxPriorityFee, feeHistory). Optional chain=base. Returns gwei fields + suggestedMaxFee. Read-only. No API keys. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| chain | string | Chain short name. Optional; only base for now. |
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"description": "Chain short name. Optional; only base for now."
}
}
}Paid $0.01 USDC exact on Base: forward geocode with q= or reverse with lat=&lon= via public Nominatim (OpenStreetMap). Attribution required. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| q | string | Place name for forward geocode (e.g. Denver, CO). |
| lat | number | Latitude -90..90 for reverse geocode. |
| lon | number | Longitude -180..180 for reverse geocode. |
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Place name for forward geocode (e.g. Denver, CO)."
},
"lat": {
"type": "number",
"description": "Latitude -90..90 for reverse geocode."
},
"lon": {
"type": "number",
"description": "Longitude -180..180 for reverse geocode."
}
}
}Paid $0.01 USDC exact on Base: GitHub public REST lookup via api.github.com (keyless). mode=search|repo|user (default search). search: q=. repo: owner=&repo= or full=owner/repo. user: user= or login=. Public metadata only; no token, no private repos. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| q | string | Repo search query (aliases query= search=). Required for mode=search. |
| full | string | owner/repo or github.com/owner/repo URL. |
| hits | integer | 1..8 results (default 5). |
| mode | string | search (default), repo, or user. |
| repo | string | GitHub repository name. Use with owner=. |
| user | string | GitHub login (aliases login=). For mode=user. |
| owner | string | GitHub owner/org. Use with repo=. |
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Repo search query (aliases query= search=). Required for mode=search."
},
"full": {
"type": "string",
"description": "owner/repo or github.com/owner/repo URL."
},
"hits": {
"type": "integer",
"description": "1..8 results (default 5)."
},
"mode": {
"type": "string",
"description": "search (default), repo, or user."
},
"repo": {
"type": "string",
"description": "GitHub repository name. Use with owner=."
},
"user": {
"type": "string",
"description": "GitHub login (aliases login=). For mode=user."
},
"owner": {
"type": "string",
"description": "GitHub owner/org. Use with repo=."
}
}
}Paid $0.01 USDC exact on Base: raw HTTP header dump of a public URL (not an honesty probe, not markdown). payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| url* | string | http(s) URL to inspect. No payment headers are sent to the target. |
{
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "http(s) URL to inspect. No payment headers are sent to the target."
}
}
}Paid $0.01 USDC exact on Base: Hacker News search via public Algolia HN API. q= required. Optional tags=story|comment|ask_hn|show_hn|poll|job|front_page|all, sort=relevance|date, hits=1..8. Complements /crypto-news. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| q* | string | Search phrase (aliases query= search=). |
| hits | integer | 1..8 results (default 5). |
| sort | string | relevance (default) or date. |
| tags | string | story (default), comment, ask_hn, show_hn, poll, job, front_page, or all. |
{
"type": "object",
"required": [
"q"
],
"properties": {
"q": {
"type": "string",
"description": "Search phrase (aliases query= search=)."
},
"hits": {
"type": "integer",
"description": "1..8 results (default 5)."
},
"sort": {
"type": "string",
"description": "relevance (default) or date."
},
"tags": {
"type": "string",
"description": "story (default), comment, ask_hn, show_hn, poll, job, front_page, or all."
}
}
}Paid $0.01 USDC exact on Base: validate JSON data against a JSON Schema (tiny built-in subset, no $ref). payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| data* | any | JSON instance object or JSON text |
| schema* | any | JSON Schema object or JSON text |
{
"type": "object",
"required": [
"schema",
"data"
],
"properties": {
"data": {
"description": "JSON instance object or JSON text"
},
"schema": {
"description": "JSON Schema object or JSON text"
}
}
}Paid $0.01 USDC exact on Base: fetch a public http(s) URL and return simple HTML-to-text markdown. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| url* | string | http(s) URL to inspect. No payment headers are sent to the target. |
{
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "http(s) URL to inspect. No payment headers are sent to the target."
}
}
}FREE ENS-style agent name lookup by AI Nock. n= lowercase [a-z0-9-] 3-32. If unset/unclaimed: taken false plus how/next pointing at unpaid POST /name $0.05 (HTTP 402), free GET /board, free GET /check (origin gate), GET /find $0.01. payTo + noSelfPay + TTL 30d. If set: origin, ownerHint?, expiresAt. Does not spend money. REST GET /name is the same SKU.
| Argument | Type | Description |
|---|---|---|
| n | string | Agent name to look up (lowercase [a-z0-9-] 3-32). |
| name | string | Alias of n. |
{
"type": "object",
"properties": {
"n": {
"type": "string",
"description": "Agent name to look up (lowercase [a-z0-9-] 3-32)."
},
"name": {
"type": "string",
"description": "Alias of n."
}
}
}Paid $0.05 USDC exact on Base: register or extend an ENS-style agent name for 30 days. origin must be https and return HTTP 402 (or be this origin). Re-register from anyone after payment overwrites/extends. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0. REST POST /name is the same SKU.
| Argument | Type | Description |
|---|---|---|
| name* | string | lowercase [a-z0-9-] 3-32 chars, no leading/trailing hyphen. |
| origin* | string | https URL that returns HTTP 402, or this origin. |
| ownerHint | string | Optional short owner hint. Max 80 chars. |
{
"type": "object",
"required": [
"name",
"origin"
],
"properties": {
"name": {
"type": "string",
"description": "lowercase [a-z0-9-] 3-32 chars, no leading/trailing hyphen."
},
"origin": {
"type": "string",
"description": "https URL that returns HTTP 402, or this origin."
},
"ownerHint": {
"type": "string",
"description": "Optional short owner hint. Max 80 chars."
}
}
}Paid $0.01 USDC exact on Base: UTC clock (unix, ms, iso). No params. Alias of REST GET /now and /time. For IANA zones use tool tz. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
No arguments.
{
"type": "object",
"properties": {}
}Paid $0.01 USDC exact on Base: Polymarket market odds via public gamma-api. q= search or slug= event/market slug (not both). Optional limit=1..5. Unknown is paid 200 with found:false. Read-only. No trading. Not investment advice. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| q | string | Search query (max 80). Use q or slug, not both. |
| slug | string | Exact Polymarket event or market slug (lowercase [a-z0-9-]). |
| limit | integer | Max markets 1-5 (default 5). |
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Search query (max 80). Use q or slug, not both."
},
"slug": {
"type": "string",
"description": "Exact Polymarket event or market slug (lowercase [a-z0-9-])."
},
"limit": {
"type": "integer",
"description": "Max markets 1-5 (default 5)."
}
}
}Paid $0.01 USDC exact on Base: spot USD quotes via public DeFiLlama. Default ids=ETH,USDC,BTC. Optional ids= aliases (ETH,USDC,BTC,SOL,WETH,LINK,AAVE,UNI,DAI) and/or token= Base 0x (max 8). Cache ~45s. Not investment advice. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| ids | string | Comma-separated symbols. Default ETH,USDC,BTC. Max 8. |
| token | string | Optional Base ERC-20 0x address. |
{
"type": "object",
"properties": {
"ids": {
"type": "string",
"description": "Comma-separated symbols. Default ETH,USDC,BTC. Max 8."
},
"token": {
"type": "string",
"description": "Optional Base ERC-20 0x address."
}
}
}Paid $0.01 USDC exact on Base: equity/index/FX/crypto quote via public Yahoo Finance chart. symbol= (AAPL, ^GSPC, EURUSD=X, BTC-USD). Complements /price /fx. Not investment advice. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| symbol* | string | Ticker: equity (AAPL), index (^GSPC), FX (EURUSD=X), crypto (BTC-USD). |
{
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"description": "Ticker: equity (AAPL), index (^GSPC), FX (EURUSD=X), crypto (BTC-USD)."
}
}
}Paid $0.01 USDC exact on Base: follow Location redirects for a public http(s) URL (manual, max 8 hops, SSRF-safe). Returns chain, finalUrl, hopCount. No meta-refresh. No payment headers. Not /headers. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| url* | string | Public http(s) URL to unwrap. |
{
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "Public http(s) URL to unwrap."
}
}
}Paid $0.05 USDC exact on Base: structured honesty report for this 402 (well-known payTo match, header vs body 402, bytecode snippet hash, accepts[] list). payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0. REST GET /report is the same SKU.
| Argument | Type | Description |
|---|---|---|
| url* | string | http(s) URL to inspect. No payment headers are sent to the target. |
{
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "http(s) URL to inspect. No payment headers are sent to the target."
}
}
}Paid $0.01 USDC exact on Base: OFAC SDN digital-currency screen for an EVM 0x or Solana/base58 address. Fail closed. Not legal advice. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| address* | string | 0x-prefixed 20-byte EVM address on Base (or Solana/base58 for sanctions). |
{
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"description": "0x-prefixed 20-byte EVM address on Base (or Solana/base58 for sanctions)."
}
}
}Paid $0.01 USDC exact on Base: 4-byte function selector lookup via public openchain.xyz (4byte.directory fallback). hex= / selector= / data= (first 4 bytes). Unknown selector is paid 200 with found:false. Complements /tx (inputLen only). Not a full ABI decoder. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| hex* | string | 0x-prefixed 4-byte selector, or longer calldata (first 4 bytes used). |
{
"type": "object",
"required": [
"hex"
],
"properties": {
"hex": {
"type": "string",
"description": "0x-prefixed 4-byte selector, or longer calldata (first 4 bytes used)."
}
}
}Paid $0.01 USDC exact on Base: Stack Overflow Q&A search via public Stack Exchange API. q= required (or id= question id). Optional tagged=javascript, sort=relevance|votes|activity|creation, hits=1..8. Stack Overflow only. Complements /hn and /arxiv. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| q | string | Search phrase (aliases query= search=). Required unless id=. |
| id | string | Stack Overflow question id (digits). |
| hits | integer | 1..8 results (default 5). |
| sort | string | relevance (default), votes, activity, or creation. |
| tagged | string | Up to 3 tags, comma-separated. |
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Search phrase (aliases query= search=). Required unless id=."
},
"id": {
"type": "string",
"description": "Stack Overflow question id (digits)."
},
"hits": {
"type": "integer",
"description": "1..8 results (default 5)."
},
"sort": {
"type": "string",
"description": "relevance (default), votes, activity, or creation."
},
"tagged": {
"type": "string",
"description": "Up to 3 tags, comma-separated."
}
}
}Paid $0.01 USDC exact on Base: TLS cert facts (public CT + live HTTPS HEAD) for a public hostname. Returns issuer, dates, SANs, daysRemaining, currentlyValid, liveHttps. Not the full /domain dossier. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| host* | string | Public DNS hostname (not a URL, not an IP). |
{
"type": "object",
"required": [
"host"
],
"properties": {
"host": {
"type": "string",
"description": "Public DNS hostname (not a URL, not an IP)."
}
}
}Paid $0.01 USDC exact on Base: ERC-20 metadata via public RPC (name, symbol, decimals, totalSupply). address= required. EOA/empty code is paid 200 with found:false. Not a spot price (use /price). Not a wallet balance (use /who). payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| address* | string | 0x-prefixed 20-byte ERC-20 contract address on Base. |
{
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"description": "0x-prefixed 20-byte ERC-20 contract address on Base."
}
}
}Paid $0.01 USDC exact on Base: token security snapshot via public honeypot.is + DexScreener. address=0x required. Optional chain=base|eth|bsc (default base). Not a full audit. Not investment advice. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| chain | string | base, eth, or bsc (default base). |
| address* | string | Token contract 0x + 40 hex. |
{
"type": "object",
"required": [
"address"
],
"properties": {
"chain": {
"type": "string",
"description": "base, eth, or bsc (default base)."
},
"address": {
"type": "string",
"description": "Token contract 0x + 40 hex."
}
}
}Paid $0.01 USDC exact on Base: transaction + receipt for a 0x hash via public RPC. Returns found, from, to, valueEth, status, gasUsed, logsCount, pending. Unknown hash is paid 200 with found:false. inputLen only. Not a mempool tip. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| hash* | string | 0x-prefixed 32-byte transaction hash on Base. |
{
"type": "object",
"required": [
"hash"
],
"properties": {
"hash": {
"type": "string",
"description": "0x-prefixed 32-byte transaction hash on Base."
}
}
}Paid $0.01 USDC exact on Base: IANA timezone clock. name=America/Denver (default). Returns now, UTC offset, DST. No API keys. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| name | string | IANA timezone name. Optional; default America/Denver. |
{
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "IANA timezone name. Optional; default America/Denver."
}
}
}Paid $0.01 USDC exact on Base: isContract, ETH balance, USDC balance, tx count for an address. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| address* | string | 0x-prefixed 20-byte EVM address on Base (or Solana/base58 for sanctions). |
{
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"description": "0x-prefixed 20-byte EVM address on Base (or Solana/base58 for sanctions)."
}
}
}Paid $0.01 USDC exact on Base: Wikipedia lead summary via public Wikimedia REST + MediaWiki search. q= search or title= page title (wikipedia.org URLs ok). Optional lang=en|simple, hits=1..8. Lead extract only, CC BY-SA. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| q | string | Search query (aliases query= search=). Required unless title=. |
| hits | integer | 1..8 search results (default 5). |
| lang | string | en (default) or simple. |
| title | string | Direct page title or wikipedia.org/wiki/Title URL. Alias page=. |
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Search query (aliases query= search=). Required unless title=."
},
"hits": {
"type": "integer",
"description": "1..8 search results (default 5)."
},
"lang": {
"type": "string",
"description": "en (default) or simple."
},
"title": {
"type": "string",
"description": "Direct page title or wikipedia.org/wiki/Title URL. Alias page=."
}
}
}Paid $0.01 USDC exact on Base: current weather via public Open-Meteo. q= place and/or lat=&lon=. Optional units=metric|us. Attribution required. Complements /geo /tz. payTo 0x3903F05a17676566958B0a3E0c21E0bd49B66ea0.
| Argument | Type | Description |
|---|---|---|
| q | string | Place name (e.g. Denver, CO). |
| lat | number | Latitude -90..90. |
| lon | number | Longitude -180..180. |
| units | string | metric (default) or us. |
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Place name (e.g. Denver, CO)."
},
"lat": {
"type": "number",
"description": "Latitude -90..90."
},
"lon": {
"type": "number",
"description": "Longitude -180..180."
},
"units": {
"type": "string",
"description": "metric (default) or us."
}
}
}