io.github.skypantherrPublished by GitHub account skypantherrv0.2.0Updated Oct 31, 2026
Pay-per-call Arabic text, audio and document utilities over x402. USDC on Base, no API key.
Remote MCP server offering pay-per-call Arabic text, audio transcription and document extraction tools, billed in USDC on Base with no API key.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.skypantherr%2Farabic-pipeline/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"arabic-pipeline-api": {
"type": "http",
"url": "https://arabic-pipeline-mcp.arabic-pipeline.workers.dev/"
}
}
}[Arabic Pipeline API MCP server]
Pay-per-call utilities for Arabic text, audio and documents, sold over x402 in USDC on Base.
No API key. No account. No subscription. The first request returns
402 Payment Required; the client signs a payment and retries; the money lands
in the provider's wallet. That is the whole protocol — and it is why this
service can pay a provider directly, with no payment processor in between.
No install, no key: the tools are already on the other end. A tool call without payment answers with the x402 challenge, and your client pays it on Base.
The MCP server exposes the same nine capabilities as tools, each behind its
own x402 payment (text_metrics, text_normalize, text_detect_language,
text_chunk, text_diff, text_search, audio_transcribe, doc_extract,
doc_extract_batch).
Arabic breaks naive string handling in ways that are invisible until they cost you a failed match:
فَاطِمَة and فاطمة are the same name, but not the same bytes.أ إ آ → ا, ى → ي, ة → ه are folded on purpose, not by accident.١٢٣ must match 123, and the tashkeel range overlaps
the digit range, so order of operations matters.start/end into the original string, so
a result can be applied to the caller's own text rather than a rewritten copy.The paid routes declare this in the 402 itself: each challenge carries a Bazaar
input schema and an output example, so a client can see exactly what it is
buying before it signs anything.
POST /text/normalize accepts a mode:
light — lossless: whitespace, digit unification, bidi cleanup only.search — light + tashkeel removal + letter folding (أإآ→ا, ى→ي, ة→ه).index — search + punctuation stripped (use as a dedup / index key).402 Payment Required.PAYMENT-REQUIRED header and, in the body,
accepts[] entries describing how to pay (network, asset, price, payTo).PAYMENT-SIGNATURE header (base64 payment payload).PAYMENT-RESPONSE header with the receipt.The full machine-readable contract — including per-operation x-payment-info —
is at GET /openapi.json.
eip155:8453), asset USDC
(0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913).https://x402.dexter.cash — no account, no fees). The facilitator only
executes the buyer's signed payment; it never holds funds.0x05523af5bd166816D1418Ebf7D6371e1fFB1D2e6.PayAPI Market independently verified this deployment by buying a call and
publishing the receipt: POST /text/normalize for $0.005 USDC, settled in
transaction
0xfc3e42f9…73ce9c
at block 53,330,178 on Base. The listing is
payapi.market/api/arabic-pipeline-api.
/audio/transcribe uses gemini-3.5-transcribe; /doc/extract and
/doc/extract/batch use gemini-3.6-flash with a JSON response schema. Both
model names are configurable (GEMINI_TRANSCRIBE_MODEL, GEMINI_VISION_MODEL).
The six text endpoints are pure computation and cost nothing to serve.
A batch runs one model call per document, concurrently. At $0.10 for five
documents that is $0.02 each, a third below the $0.03 single-document price;
for one or two documents the single route is cheaper, and the batch route says
so. A failed document is reported in place (ok: false plus error) instead of
failing the whole call, so a bad scan costs one slot rather than the payment.
See DEPLOY.md. The short version: npm run login → npm run secret →
npm run deploy → register the listing.
Two Workers are deployed from this repo:
Proprietary — all rights reserved. The source is public so the service can be audited; it is not licensed for reuse or redistribution. The API itself is sold per call, not licensed.
Source: README.md at commit e45562a
Text metrics
Measure text deterministically: characters, words, unique words, sentences, lines, paragraphs, digits, punctuation, average word and sentence length, reading time and an Arabic/Latin language mix. Works on any language, not only Arabic.
textrequiredNormalize Arabic text
Canonicalise Arabic text for search, matching or indexing: remove tashkeel and tatweel, fold alef/ya/ta-marbuta, unify Arabic-Indic digits, strip bidi control characters and collapse whitespace. mode=light is lossless; search adds letter folding; index also strips punctuation so the result can be used as a dedup key.
modetextrequiredDetect language
Identify whether text is Arabic, English, mixed or unknown from its script mix, with a confidence score and the count of Arabic, Latin and other letters. Deterministic and model-free, so it is cheap enough to run on every incoming message to route Arabic work.
textrequiredChunk text
Split long text into chunks for a model context window. Cuts at sentence boundaries when possible, then at word boundaries, and never mid-word unless a single word is longer than max_chars. Returns each chunk with exact start/end offsets into the original string plus an optional overlap for context carry-over.
textrequiredoverlapmax_charsDiff two texts
Compare two texts word by word after Arabic normalisation (tashkeel, alef/ya/ta-marbuta and digit variants are treated as equal). Returns an equal flag, a similarity score and the added and removed words. Use it for deduplication, re-import checks and QA of edited Arabic copy. Each side is limited to 1500 words.
arequiredbrequiredSearch text
Search Arabic (or any) text with normalisation: tashkeel, alef/ya/ta-marbuta, hamza and Arabic-Indic digit variants are ignored, so فَاطِمَة matches فاطمة and ١٢٣ matches 123. mode=words (default) matches whole words, phrase matches any substring, fuzzy tolerates up to max_distance edits per word. Returns exact start/end offsets into the original text plus a context snippet.
modetextrequiredqueryrequiredmax_resultsmax_distancecontext_charsTranscribe audio
Transcribe Arabic or English speech to plain text. Send the audio as base64 (webm, mp3, wav or mp4); the payload limit is 12 MB of base64. Returns the transcript plus the model that produced it.
mime_typeaudio_base64requiredExtract document fields
Extract structured fields from an Arabic document image or PDF (receipts, invoices, official letters, national IDs, bank slips) as JSON: amounts, dates, names, identifiers and tax numbers, with null for fields the document does not contain. Send the file as base64 (jpeg, png or pdf); the limit is 12 MB of base64.
mime_typedocument_base64requiredExtract document fields (batch)
Extract structured fields from 1 to 5 Arabic documents in one paid call: $0.10 for the batch, i.e. $0.02 per document instead of $0.03. Documents are processed independently and in parallel, results come back in request order with an echoed id, and one unreadable image does not fail the rest (it appears with ok=false and an error). Use this for a stack of receipts, invoices or bank slips.
documentsrequiredmime_type90% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Declare a license in the repository or the registry entry.
# Claude Code (any Streamable HTTP MCP client works the same way)claude mcp add --scope user --transport http arabic-pipeline-mcp \ https://arabic-pipeline-mcp.arabic-pipeline.workers.dev/# 1. Any paid route answers 402 with a payment challengecurl -i https://arabic-pipeline.arabic-pipeline.workers.dev/text/normalize \ -H 'content-type: application/json' \ -d '{"text":"مُحَمَّدٌ عَلِيّ","mode":"search"}'
# 2. Free routes (no payment needed)curl https://arabic-pipeline.arabic-pipeline.workers.dev/openapi.jsoncurl https://arabic-pipeline.arabic-pipeline.workers.dev/npm installcp .dev.vars.example .dev.vars # then add GEMINI_API_KEYnpm run dev # wrangler devnpm test # vitestnpm run typechecknpm run deploy # REST API -> arabic-pipeline.arabic-pipeline.workers.devnpx wrangler deploy -c wrangler.mcp.toml # MCP server -> arabic-pipeline-mcp.arabic-pipeline.workers.dev