MARKET MONITOR / CATALOGUE Services 139,332 MCP listed 41,906 x402 97,533 Rails Base / Solana / Polygon / Arbitrum Imported 2026-11-03 · 3 sources
Task

Checksum

66 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.

hash-hash x402 REST usage

Compute an MD5, SHA-1, SHA-256 or SHA-512 hex digest of text.

x402.agentindex.world Other services 2 calls / 30d checked 2026-11-03
0.002 USDC per call per call

Hash x402 REST usage

Canonical digests — sha256, sha512-256 and blake2b of text or canonical JSON — Genesis402 / UnyKorn Operator Network

twin.unykorn.org Other services 1 calls / 30d checked 2026-11-01
0.003 USDC per call per call

bank-validate x402 REST usage

Cheap structural IBAN validation: ISO 13616 checksum + per-country structure/length. Returns valid plus, on rejection, a granular error_type (invalid_checksum, invalid_length, invalid_structure, invalid_country), the cou...

api.agentstools.dev Geo & Maps 1 calls / 30d checked 2026-11-03
0.003 USDC per call per call

Foundry x402 REST usage

Base transaction explained from the chain: success or reverted, block and time, from, to, ETH value, method selector, gas used and fee, contract created, and every ERC-20 transfer decoded with token symbol and amount. In...

minty-sprout.onrender.com AI Models & Inference 1 calls / 30d checked 2026-11-02
0.002 USDC per call per call

Delx Luhn Check x402 REST checked

Luhn checksum validation for digit strings for $0.001 USDC. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover o...

api.delx.ai Crypto & Payments 2 calls / 30d checked 2026-10-30
0.001 USDC per call per call checked

Delx ISBN Check x402 REST checked

ISBN-10/ISBN-13 checksum validation for $0.001 USDC. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the...

api.delx.ai Crypto & Payments 2 calls / 30d checked 2026-10-24
0.001 USDC per call per call checked

validate-siret x402 REST usage

French SIRET (14-digit business establishment number) Luhn checksum validation. Note: the rare La Poste SIREN exception to the standard rule is not applied.

x402.agentindex.world Productivity & Docs 2 calls / 30d checked 2026-11-03
0.001 USDC per call per call

validate-routing x402 REST usage

US ABA bank routing number (9-digit) checksum validation.

x402.agentindex.world Other services 2 calls / 30d checked 2026-11-03
0.001 USDC per call per call

validate-isin x402 REST usage

ISIN (ISO 6166 security identifier) Luhn checksum validation.

x402.agentindex.world Security 2 calls / 30d checked 2026-11-03
0.001 USDC per call per call

validate-isbn x402 REST usage

ISBN-10 or ISBN-13 checksum validation (auto-detected by length).

x402.agentindex.world Other services 2 calls / 30d checked 2026-11-03
0.001 USDC per call per call

validate-imei x402 REST usage

IMEI (15-digit mobile device identifier) Luhn checksum validation.

x402.agentindex.world Other services 2 calls / 30d checked 2026-11-03
0.001 USDC per call per call

validate-ean x402 REST usage

EAN-8 or EAN-13 barcode checksum validation (auto-detected by length).

x402.agentindex.world Dev & Code 2 calls / 30d checked 2026-11-03
0.001 USDC per call per call

Forest Gas Station x402 REST usage

Check whether an isolated cart can reach checkout and expose blockers without payment. It never logs in, creates an order or finalizes checkout.

http--forest-gas-station--lcjl27p8lmjs.code.run Crypto & Payments 1 calls / 30d checked 2026-10-28
no price published

String Hash and Checksum x402 REST

Hash any UTF-8 string and get sha256, sha512, sha384, sha1, md5, CRC32 and base64 checksum in one call. Computed locally, no upstream, no API key.

llmrt-companion.manhliemcn4euwlu.workers.dev Other services checked 2026-11-03
0.000259 USDC per call per call

Page Change x402 REST

Page change detection - website change monitoring, detect webpage changes, url change detection. Fetches a public URL and reports whether the page changed: the sha256 fingerprint of the text a reader sees, the HTTP statu...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Web & Scraping checked 2026-10-31
0 USDC per call per call

farsi-tools validate-national-id x402 REST

Validate an Iranian national ID (کد ملی, code melli) by recomputing its check digit. Use it before accepting an identity number from a form, a customer, or an API payload. Returns whether the number is valid, and the par...

farsi-tools.johnaio281.workers.dev Dev & Code checked 2026-11-03
0.005 USDC per call per call

Wayback Snapshot History x402 REST

Wayback machine snapshots history - list every archived capture of a URL with its timestamp, HTTP status code, MIME type, content digest and length, the date span, the content CHANGE points between captures and the captu...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Web & Scraping checked 2026-10-31
0 USDC per call per call

Wayback Machine x402 REST

Wayback machine snapshots history - list every archived capture of a URL with its timestamp, HTTP status code, MIME type, content digest and length, the date span, the content CHANGE points between captures and the captu...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Geo & Maps checked 2026-10-31
0 USDC per call per call

Wayback x402 REST

Wayback machine snapshots history - list every archived capture of a URL with its timestamp, HTTP status code, MIME type, content digest and length, the date span, the content CHANGE points between captures and the captu...

6xrkjcfa3yrzvefcpvanurzou4.srv.us Geo & Maps checked 2026-10-31
0 USDC per call per call

text-hash x402 REST

Text hashes: SHA-256, SHA-1, SHA-512 and SHA-384 hex digests of the exact text you send (UTF-8), plus its byte length. Deduplication keys, integrity checks and fingerprints. $0.01 per call.

intel.rallylive.ca Other services checked 2026-10-29
0.01 USDC per call per call

iban-validate x402 REST

IBAN validation: mod-97 checksum, country, expected length, bank/branch code split and a formatted version. Payment-form validation without a banking API. $0.01 per check.

intel.rallylive.ca Crypto & Payments checked 2026-10-29
0.01 USDC per call per call

card-number-luhn x402 REST

Payment card number check: Luhn checksum, card brand from the prefix (Visa, Mastercard, Amex, Discover, JCB, Diners, UnionPay), length validity and masked form. Nothing is stored. Form validation for checkout flows. $0.0...

intel.rallylive.ca Crypto & Payments checked 2026-10-29
0.01 USDC per call per call

url-file-checksum x402 REST

Checksums of a file at a URL (up to 5 MB): SHA-256, SHA-1 and MD5-free SHA-384 hex digests, the SRI string (sha384-…), byte size, content type, last-modified and ETag, plus the final URL after redirects. Verify downloads...

intel.rallylive.ca Web & Scraping checked 2026-10-29
0.01 USDC per call per call

x402-text-hash x402 REST

SHA-256, SHA-384, SHA-512 or SHA-1 of any text in one GET, without an LLM or a local tool: pass text and get the digest as hex or base64. curl: GET /hash?text=hello (algo sha256|sha384|sha512|sha1, default sha256; encodi...

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

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