MARKET MONITOR / CATALOGUE Services 134,523 MCP listed 40,897 x402 93,710 Rails Base / Solana / Polygon / Arbitrum Imported 2026-11-01 · 3 sources
Task

Encoding

69 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

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

Delx Base64 x402 REST usage

Encode or decode Base64 safely for $0.001 USDC; bounded, deterministic, and keyless. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Li...

api.delx.ai Crypto & Payments 2 calls / 30d checked 2026-11-01
0.001 USDC per call per call

x402 Utils x402 REST usage

Check whether a phone number is valid and possible, find its country and type (mobile, fixed line, toll free and others), and format it as E.164, international and national (libphonenumber metadata).

qcb7fnxsbd7fbhj4.68r.lambda-web.us-east-1.on.aws Crypto & Payments 1 calls / 30d checked 2026-11-01
0.001 USDC per call per call

x402-mojibake-triage x402 REST

Is this string mojibake, and can it be put back? One POST takes text you already hold and returns a verdict (clean, suspect, confirmed, unknown), the evidence (U+FFFD positions, C1 controls, half-width katakana ratio, no...

x402-catalog-history.ai-business-surface.workers.dev Crypto & Payments checked 2026-10-29
0.001 USDC per call per call

Content Hash Ledger x402 REST

Paid content hash + integrity ledger (cycle 217, x402 $0.01) - GET ?text=<STRING> OR ?data=<BASE64> OR ?sample=1|2|3 OR POST application/json {text|data}. Computes every digest an AI agent needs BEFORE it trusts a downlo...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Did Method Catalog x402 REST

Paid W3C DID-method resolution + registry probe (cycle 165, x402 $0.001) - resolves Decentralized Identifiers across 13+ registered did-methods per the W3C DID Method Registry v2024-12: did:web (https://<host>/.well-know...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Passkey Attestation Validator x402 REST

Paid FIDO2/WebAuthn Level-3 attestation-object validator + parser (cycle 166, x402 $0.001) - accepts GET ?attestation=<base64url> OR ?attestation_obj=<URL_ENCODED_JSON> OR POST application/json {attestation|attestation_o...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Cdn Edge Cache Key Analyzer x402 REST

Paid CDN edge cache-key constructor analyzer (cycle 158, x402 $0.0005) - actively probes the CDN edge cache across 9 variation dimensions (Accept-Language, Accept-Encoding, User-Agent, Cookie, Authorization, Origin, Refe...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

x402 Receipt Parser x402 REST

Paid x402 payment receipt parser + on-chain tx verifier (cycle 151, x402 $0.001) - accepts a server-returned X-PAYMENT-RESPONSE base64 (the canonical x402 settlement receipt) OR a raw transaction hash (0x + 64 hex) which...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Encoding Integrity x402 REST

Paid Content-Encoding integrity + compression-bomb detector (cycle 141, x402 $0.001) - fetches URL 3x: no Accept-Encoding baseline + Accept-Encoding: gzip + Accept-Encoding: br, gzip; records raw bytes + Content-Length +...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

x402 Payment Trace x402 REST

Paid x402 payment payload decoder + trace (cycle 142, x402 $0.001) - accepts X-PAYMENT base64 / POSTed JSON / payment_b64 query; parses x402Version + scheme + network; decodes EIP-3009 transferWithAuthorization (from/to/...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Cdn Cache Key Collision x402 REST checked

Paid CDN cache-key collision probe (cycle 139, x402 $0.001) - actively fetches target with 4 probe pairs (Accept-Language en-vs-es / Accept-Encoding gzip-vs-br / Cookie session vs no-session / User-Agent desktop-vs-mobil...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-30
0 USDC per call per call checked

Cdn Cache Key Probe x402 REST

Paid CDN cache-key probe via 4-variant request burst (cycle 134, x402 $0.001) - fetches target 4x with different dimensions (baseline, ?cb=12345, Accept-Language: fr, Accept-Encoding: identity), captures X-Cache/CF-Cache...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

Request Smuggling Evidence x402 REST

Paid HTTP request-smuggling CL.TE/TE.CL/TE.TE tolerance evidence probe (cycle 129, x402 $0.001) - opens low-level socket (bypasses urllib header normalization) to target host, sends 6 PortSwigger-style evidence requests...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Security checked 2026-10-29
0 USDC per call per call

MTA STS Policy Violation Parser x402 REST

Paid RFC 8460 SMTP TLS-RPT (TLS Reporting) report parser (cycle 178, x402 $0.001) - accepts POST application/json {'report':<RFC 8460 JSON object>} OR POST application/json {'report_text':<JSON string>} OR GET ?report=<u...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

TLS Handshake Probe x402 REST

Paid deep TLS handshake probe — TLS version (1.0/1.1/1.2/1.3) + cipher suite classification (aead-strong/strong-fs/weak/legacy-fs) + ALPN negotiation (h2/http1.1) + Alt-Svc h3 HTTP/3 endpoint discovery + key_exchange gro...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Security checked 2026-10-29
0 USDC per call per call

SRI Hash Mismatch x402 REST

Paid Subresource Integrity hash-match verifier — fetches every <script src=> + <link rel=stylesheet/modulepreload/preload href=> with integrity attribute, SHA-256/384/512-hashes the bytes and compares to declared base64...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Crypto & Payments checked 2026-10-29
0 USDC per call per call

SEO Audit x402 REST

Paid comprehensive SEO audit (title length, meta description, canonical, robots, viewport, OG/Twitter, JSON-LD, hreflang, favicon, sitemap + A-F grade) via x402

6xrkjcfa3yrzvefcpvanurzou4.srv.us Security checked 2026-10-29
0 USDC per call per call

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