MARKET MONITOR / CATALOGUE Services 144,164 MCP listed 42,306 x402 101,972 Rails Base / Solana / Polygon / Arbitrum Imported 2026-11-05 · 3 sources

Dev & Code

Repository, build, lint, test and code-understanding services that an agent can call while working in a codebase.

3,380 services with a source 141 pages

Central Bank Policy Rates x402 REST usage

Current policy interest rates of about 40 central banks (Fed, ECB, BoE, BoJ, PBoC, SNB, RBI...) with the date of the latest value, highest first, from the BIS. Filter by country or currency code.

bess-x402.onrender.com Dev & Code 2 calls / 30d checked 2026-11-05
0.002 USDC per call per call

JWT Decoder x402 REST usage

Decode a JSON Web Token without verifying it: header, algorithm, payload claims, issued-at/expiry times and whether it has expired. Use to debug auth tokens and API sessions.

bess-x402.onrender.com Dev & Code 2 calls / 30d checked 2026-11-05
0.002 USDC per call per call

validate-vin x402 REST usage

North American VIN check-digit validation (NHTSA standard, position 9) plus WMI manufacturer lookup for a small set of known codes.

x402.agentindex.world Dev & Code 2 calls / 30d checked 2026-11-05
0.002 USDC per call per call

hash-hmac x402 REST usage

Compute an HMAC (MD5, SHA-1, SHA-256 or SHA-512) of text with a given key.

x402.agentindex.world Dev & Code 2 calls / 30d checked 2026-11-05
0.002 USDC per call per call

encoding-detect x402 REST usage

Detect whether hex-encoded bytes are ASCII, UTF-8, or UTF-16 with a BOM, by decode-validity and BOM presence (not statistical language detection).

x402.agentindex.world Dev & Code 2 calls / 30d checked 2026-11-05
0.002 USDC per call per call

CORE JSON Validator x402 REST usage

Use this service before importing or publishing JSON to check it against a restricted draft-07 schema. Send dataJson and schemaJson as JSON-encoded strings. Max 256 KiB UTF-8 each, depth 32; bounded node and work limits....

92-222-181-125.sslip.io Dev & Code 2 calls / 30d checked 2026-11-05
0.002 USDC per call per call

Country Profile x402 REST usage

Country profile by ISO 3166 alpha-2 code: ISO codes, name, region, income group, lending type, capital with coordinates, and the latest population and GDP per capita with their years, as JSON.

pennydatahq.com Dev & Code 1 calls / 30d checked 2026-11-05
0.003 USDC per call per call

Decode x402 REST usage

Decode an EVM transaction and its event logs with a caller-supplied ABI. Base, Polygon, Arbitrum, Optimism or Avalanche. $0.003 per completed decode; unknown selectors retain raw data.

api.liquidagent.ai Dev & Code 1 calls / 30d checked 2026-11-05
0.003 USDC per call per call

Index x402 REST usage

Index level, change/change_pct vs previous close, open/high/low, month/year change, annual high/low and traded value for up to 5 codes (default IMOEX), or code=list for the catalogue of MOEX stock indices (SNDX board + R...

x402-markettwits-news.onrender.com Dev & Code 1 calls / 30d checked 2026-11-04
0.003 USDC per call per call

Fx x402 REST usage

CBR official exchange rates from cbr.ru XML_daily.asp for a date (default: the latest set) and optional currency codes: per currency nominal, value (RUB per nominal), per_unit (RUB per 1 unit), previous set's per_unit, c...

x402-markettwits-news.onrender.com Dev & Code 3 calls / 30d checked 2026-11-05
0.001 USDC per call per call

Abi decode x402 REST usage

ABI-decode return data against declared types — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Abi encode x402 REST usage

ABI-encode a list of typed parameters — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Eth rlp encode x402 REST usage

RLP-encode a value or nested list — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Decode bech32 x402 REST usage

Decode and checksum-verify a bech32 or bech32m string — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Decode jwt x402 REST usage

Decode a JWT's header and claims — WITHOUT verifying it — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Encode base64 x402 REST usage

Base64 and base64url encoding of text or bytes — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Encode url x402 REST usage

Percent-encode and decode a string for URLs — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Decode base64 x402 REST usage

Decode base64 or base64url to bytes and text — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Decode hex x402 REST usage

Decode hex to text and other encodings — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Encode base58 x402 REST usage

Base58 encoding (Bitcoin alphabet) — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Xrpl currency decode x402 REST usage

Decode an XRPL 40-hex currency code to its ticker — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Vin decode x402 REST usage

VIN decoder (NHTSA): make, model, year, trim, body, engine, fuel, plant — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Country x402 REST usage

Country facts: capital, currencies, languages, population, timezones, calling code — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Dev & Code 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

Url x402 REST usage

RFC 3986 percent-decode an input string back to its original text (%20 to space, %2F to /). Reverse of url-encode.

agentbit.app Dev & Code 2 calls / 30d checked 2026-11-04
0.0015 USDC per call per call

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