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

Base32 x402 REST usage

Call when an agent needs an RFC 4648 or Crockford base32 length check. Decoded bytes are not returned.

agentshield.live Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

Symbol x402 REST usage

Call when an agent has an ISO currency code and needs the CLDR English currency symbol. Unknown codes return 404. Not an exchange rate.

agentshield.live Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

Country x402 REST usage

Call when an agent has an ISO 3166-1 code and needs the English short name. Unknown codes return 404.

agentshield.live Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

Lang x402 REST usage

Call when an agent has an ISO 639-1 code and needs the English language name. Unknown codes return 404. Not a translation.

agentshield.live Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

Calling x402 REST usage

Call when an agent needs the telephone country calling code for a country. Not a phone-number lookup.

agentshield.live Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

Sig decode x402 REST usage

Decode a 4-byte function selector or calldata into human-readable Solidity function signatures via openchain - reverses on-chain selectors that LLMs cannot know. function selector, 4byte decode, sig decode, calldata deco...

api.x402node.dev Dev & Code 1 calls / 30d checked 2026-11-01
0.004 USDC per call per call

Crontab next run time x402 REST usage

Parses any standard cron expression and computes its next 1-20 firing times in a chosen timezone, flagging malformed expressions clearly rather than letting a bad schedule silently fail in production. For scheduler tooli...

x402.forgemesh.io Dev & Code 2 calls / 30d checked 2026-11-01
0.002 USDC per call per call

From mgrs x402 REST usage

Convert an MGRS grid reference back to decimal lat/lon on WGS84 (the coordinate of the grid cell's south-west corner at the given precision). Whitespace is ignored; a malformed reference is a clean 400.

geospatial.openverbs.com Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

HOTP (counter-based) x402 REST usage

Generate an RFC 4226 counter-based HMAC one-time password from a base32 secret and counter. Configurable digits (6–10, default 6) and algorithm (SHA1/SHA256/SHA512, default SHA1). An invalid base32 secret is a clean 400.

otp.openverbs.com Dev & Code 1 calls / 30d checked 2026-11-04
0.004 USDC per call per call

TOTP (time-based) x402 REST usage

Generate an RFC 6238 time-based one-time password from a base32 secret. Uses the current time by default, or an explicit unix timestamp (seconds); configurable period (default 30s), digits (default 6) and algorithm (defa...

otp.openverbs.com Dev & Code 1 calls / 30d checked 2026-11-04
0.004 USDC per call per call

Build otpauth:// URI x402 REST usage

Build an otpauth:// provisioning URI (the string encoded in authenticator QR codes) for a totp or hotp secret. Includes label, issuer, algorithm, digits and period (totp) or counter (hotp). The secret must be valid base3...

otp.openverbs.com Dev & Code 1 calls / 30d checked 2026-11-04
0.004 USDC per call per call

Verify a TOTP code x402 REST usage

Verify a submitted TOTP code against a base32 secret, scanning ±window time steps (default ±1) to tolerate clock drift. Returns valid plus the matching step offset (delta). A code that does not match is a successful resu...

otp.openverbs.com Dev & Code 1 calls / 30d checked 2026-11-04
0.004 USDC per call per call

Generate barcode x402 REST usage

Render a barcode (Code128, Code39, EAN-13/8, UPC-A/E, ITF-14, DataMatrix, PDF417) as SVG or PNG data URL.

qr.openverbs.com Dev & Code 1 calls / 30d checked 2026-11-04
0.004 USDC per call per call

Look up an emoji x402 REST usage

Resolve an emoji by its shortcode (e.g. "smile" or ":smile:") or exact name. Provide exactly one field. Returns the emoji, its metadata and code points.

emoji.openverbs.com Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

Range satisfaction x402 REST usage

Test whether a version satisfies a semver range (^, ~, x-ranges, ||, hyphen).

semver.openverbs.com Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

Levenshtein distance x402 REST usage

Levenshtein edit distance (insertions, deletions, substitutions) between two strings, plus a normalized similarity in [0,1]. Operates on Unicode code points.

similarity.openverbs.com Dev & Code 1 calls / 30d checked 2026-11-04
0.004 USDC per call per call

Inspect code points x402 REST usage

Break a string into its Unicode code points, each with its U+ notation, decimal value and UTF-8 / UTF-16 byte layout, plus total byte lengths.

encoding.openverbs.com Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

Mask a card number x402 REST usage

Mask a card number for display, keeping the first six and last four digits (the PCI-permitted maximum) and replacing the rest with a mask character (default `*`).

creditcard.openverbs.com Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

Query string parse / build x402 REST usage

Two directions over query strings. action='parse' decodes a query string (with or without a leading '?') into an object, collapsing repeated keys into arrays. action='build' encodes a params object into a query string, e...

url.openverbs.com Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

EAN / UPC / GTIN check x402 REST usage

Validate a GTIN barcode number — EAN-8, UPC-A (12), EAN-13 or GTIN-14 — by the standard mod-10 check digit. Length selects the scheme.

checkdigit.openverbs.com Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

Decode phonetic words x402 REST usage

Turn a string of phonetic words back into text ("Sierra Oscar Sierra" → "SOS"). Accepts common alternative spellings (Alpha, Juliet, Niner). Unknown words are clean 400s.

nato.openverbs.com Dev & Code 2 calls / 30d checked 2026-11-04
0.002 USDC per call per call

Scan text for leaked secrets x402 REST usage

Scan source code or configuration text for hardcoded secrets: AWS access keys, GitHub/Slack/Google tokens, Stripe and OpenAI keys, PEM private-key blocks, JWTs and high-entropy secret assignments. Placeholder values are...

scan.openverbs.com Dev & Code 1 calls / 30d checked 2026-11-04
0.004 USDC per call per call

Generate QR code x402 REST usage

Render text (URL, vCard, Wi-Fi config, …) as a QR code — SVG string or PNG data URL.

qr.openverbs.com Dev & Code 1 calls / 30d checked 2026-11-04
0.004 USDC per call per call

Qr x402 REST usage

QR Code Generator qr: Encode one text as a QR Code (ISO/IEC 18004, versions 1-40, ECC L/M/Q/H) and return it as SVG, PNG or a JSON matrix.

nojunk-qr.mick8511.workers.dev Dev & Code 4 calls / 30d checked 2026-11-05
0.001 USDC per call per call

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