xytara MCP Executor

com.naxytraPublished by naxytra.comOfficial publisherv3.9.13Updated Nov 6, 2026

Pay-per-call MCP tools and signed on-chain attestations: 20 free/day, then x402 or a spend key.

VerifiedStreamable HTTPWeb executableFinanceDeveloper ToolsAI & ML

Overview

AI-generated overview

Remote pay-per-call MCP server offering crypto/EVM utilities, text and data helpers, and paid AI, web and market tools, billed in USDC via x402 or prepaid…

What you can do
  • Hash, encode and decode EVM data: keccak256, ABI encode/decode, EIP-712 digests, Merkle proof checks, address validation
  • Inspect x402 payments and Base chain state: decode payment challenges, verify receipts, look up transaction status, gas, wallet balances
  • Process text and data: extractive summaries, chunking, entity extraction, HTML to text, JSON Schema validation, reply drafting, DNS lookups
  • Call paid third-party APIs: one-shot LLM chat, URL research, news briefs, token and market data, crypto prices and sentiment, web page reading, bounty listings
When to use it
Useful when an assistant needs quick, stateless crypto and text utilities, or paid AI, web and market lookups, without hosting anything locally. The free daily allowance makes it easy to trial before committing to payments.
Requirements
Remote streamable HTTP endpoint; no local install. No account needed for the first 20 calls per UTC day. Beyond that, either an x402 payment signed from a wallet on Base mainnet or Base Sepolia, or a prepaid spend key sent as an Authorization bearer token, X-Naxytra-Key header or key query parameter. Key-bound credentials also need X-Agent-Signature and X-Agent-Timestamp headers.
Before you install
Most tools cost money per call in USDC, and some third-party tools cost more than the headline rate; spending is real on-chain value. The spend key is a bearer credential that can be passed in a URL query string, so treat it as a secret. Calls send data to a third-party service and to upstream providers such as Money Reactor, Coinbase, DexScreener and news feeds. Attestation and receipt verification depends on the provider's published keys.

Installation

In SourceWeft

  1. Open xytara MCP Executor in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

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/com.naxytra%2Fxytara-mcp-executor/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.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "xytara-executor": {
      "type": "http",
      "url": "https://mcp.naxytra.com/mcp"
    }
  }
}

Tools

31

summarize

Summarize text (extractive)

Extractive summary: returns the first sentences of the text (default 3, up to 10) capped at max_chars (default 600, 50-2000), taken from the first 4000 characters. Deterministic; it does not paraphrase. `truncated` is true when the source was longer than the considered window. Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parameterstextrequiredmax_charsmax_sentences

zones.lookup

DNS zone lookup

Live DNS lookup of A, AAAA, CNAME, MX, NS and TXT records for a domain (a URL is accepted; its hostname is used; IDNs are punycoded). 2 s per query, ~5 s total. Per-record errors are reported in record_errors; if no record resolves at all the call fails and is not charged. Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parametershostnamerequired

catalog

Tool catalog (free)

Lists the enabled tools with titles, descriptions and the price. Same information as tools/list. Free: never requires payment.

Takes no parameters.

reply.draft

Reply draft skeleton

Builds a structured reply to a message: greeting to the sender (name detected from the sign-off, or sender_name), acknowledgement, every question and request found in the message listed with an answer placeholder, deadlines noted, and a tone-matched sign-off. Deterministic template: it organizes the reply but does not invent the answers (placeholders in [brackets]). Input up to 20000 characters. Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parameterstextrequiredtoneyour_namesender_name

json.validate

JSON Schema validation

Validates a JSON payload (any JSON value, or JSON text as a string) against a JSON Schema and returns valid plus every error with its JSON Pointer path. Supported keywords: type, required, properties, additionalProperties, items/prefixItems, enum, const, minimum/maximum, exclusiveMinimum/exclusiveMaximum, multipleOf, minLength/maxLength, pattern, minItems/maxItems, uniqueItems, min/maxProperties, allOf. A schema using other keywords ($ref, anyOf, oneOf, not, if/then) is rejected (not charged) rather than half-checked. Without a schema only well-formedness is checked. Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parametersschemapayloadrequiredschema_nameparse_string

text.extract

Extract entities from text

Extracts emails, URLs (trailing punctuation stripped), IPv4 addresses, EVM addresses, transaction hashes, @mentions, #hashtags, prices, ISO/slash dates and phone numbers (dates, IPs and plain numbers are not reported as phones). Input up to 200000 characters; linear-time. Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parameterstextrequired

html.to-text

HTML to plain text

Converts HTML to readable plain text: drops scripts/styles/comments and all attribute text, keeps paragraph and list structure, separates table cells with " | ", decodes numeric and common named entities, and returns the <title> separately. Input up to 250000 characters; single linear pass. Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parametershtmlrequired

text.chunk

Chunk text for RAG

Splits text into chunks of at most max_chars (100-20000, default 2000) preferring paragraph, line, sentence and word boundaries, with optional overlap (up to half of max_chars). Sizes are UTF-16 code units; surrogate pairs (emoji) are never split. Input up to 250000 characters. Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parameterstextrequiredoverlapmax_chars

x402.decode

Decode an x402 challenge

Decodes an x402 payment challenge (base64 PAYMENT-REQUIRED header, or the JSON; v2 `amount` and v1 `maxAmountRequired`) into networks, assets, human amounts and payTo. A challenge with no payment options fails (not charged). Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parameterschallengerequired

keccak256

Keccak-256 hash

Ethereum keccak256 of the input: returns the 32-byte digest and the 4-byte selector. encoding auto (default) hashes 0x-hex input as bytes and anything else as UTF-8 text; force utf8 or hex explicitly. The empty string is allowed. Up to 250000 bytes. Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parametersdatarequiredencoding

address.validate

Validate an EVM address

Checks an EVM address: format (0x + 40 hex), EIP-55 checksum (for mixed-case input), zero address, and returns the checksummed form. Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parametersaddressrequired

x402.verify-receipt

Verify an x402 settlement on-chain

Decodes an x402 PAYMENT-RESPONSE receipt and checks Base / Base Sepolia: settlement_confirmed is true only if the tx succeeded and its logs contain a USDC Transfer to the expected payTo (pay_to, else this server's) for the expected amount (amount, else this server's price) from the stated payer. RPC unavailable, unknown network or a receipt without a tx fails (not charged). Price: $0.02 USDC per call on Base mainnet ($0.002 on Base Sepolia), paid with x402 or 6 credits with a spend key; failed calls are not charged. The result carries a signed attestation (naxytra-attestation/1, in result._meta["naxytra.com/attestation"]) of what was observed on-chain — verified true or false — that you can hand to a third party; keys at /.well-known/delivery-receipt-keys.

Parameterspayeramountpay_toconfirmreceiptrequired

tx.status

Transaction status on Base

Looks up a transaction by hash on Base mainnet (default) or Base Sepolia: success/failed/pending, block, confirmations, from, to, value and gas. network accepts eip155:8453, base, 8453, eip155:84532, base-sepolia, 84532. A hash unknown to the chain is reported clearly as found:false. ~5 s budget; RPC unavailable fails (not charged). Price: $0.02 USDC per call on Base mainnet ($0.002 on Base Sepolia), paid with x402 or 6 credits with a spend key; failed calls are not charged. The result carries a signed attestation (naxytra-attestation/1, in result._meta["naxytra.com/attestation"]) of what was observed on-chain — verified true or false — that you can hand to a third party; keys at /.well-known/delivery-receipt-keys.

Parametersnetworktx_hashrequired

abi.encode

ABI-encode values

Solidity ABI encoding (like abi.encode): address, bool, uint8-256, int8-256, bytes1-32, bytes, string, dynamic T[] and fixed T[k] arrays, and tuples written (uint256,address), nested to any depth. Strict: exact 20-byte (checksum-valid) addresses, range-checked integers, exact bytesN length, JSON true/false for bool, JSON arrays for arrays and tuples. Integers as decimal strings (or safe JSON numbers). Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parameterstypesrequiredvaluesrequired

abi.decode

ABI-decode data

Decodes ABI-encoded hex for the given types (same type support as abi.encode). Strict: every length and offset is bounded by the data present, dirty padding bits and trailing bytes are rejected, and calldata with a 4-byte selector is flagged. Integers are returned as decimal strings, addresses checksummed. Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parametersdatarequiredtypesrequired

merkle.verify

Verify a Merkle proof

Verifies a keccak256 Merkle proof. leaf, root and every proof entry must be 0x 32-byte hashes (hash_leaf:true keccak-hashes a raw leaf first). sorted:true (default) is OpenZeppelin MerkleProof (sorted pairs); sorted:false needs leaf_index or positions to order each pair. Up to 256 proof entries. Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

Parametersleafrequiredrootrequiredproofrequiredsortedhash_leafpositionsleaf_index

eip712.hash

EIP-712 typed-data hash

Computes the EIP-712 digest, domain separator, struct hash and encodeType from domain, types, primaryType and message (what wallets sign, including the x402 USDC TransferWithAuthorization). Every field is type-checked; a missing field fails with missing_field:<path> (not charged). Price: $0.01 USDC per call on Base mainnet ($0.001 on Base Sepolia), paid with x402; failed calls are not charged.

ParameterstypesrequireddomainrequiredmessagerequiredprimaryTyperequired

ai.chat

AI chat completion (Llama 3.1)

One-shot LLM answer or full messages array. Summarize, classify, extract, answer. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.005 USDC per call via x402 or 2 credits with a spend key; failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

ai.url-research

AI research on any URL

Fetches the page, cleans HTML and answers your question with a grounded research brief. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.005 USDC per call via x402 or 2 credits with a spend key; failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

ai.news-brief

AI crypto news brief

Live headlines from major crypto RSS + a compact AI-written brief on your topic. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.005 USDC per call via x402 or 2 credits with a spend key; failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

token.verdict

Token safety verdict (Base)

On-chain liquidity, holder and pair data from DexScreener, graded A-F with reasons. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.001 per call or 1 credit with a spend key; a single x402 payment for it is $0.005 (the per-payment settlement minimum); failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

token.honeypot

Repo honeypot trust score

Trust scoring for GitHub repos: activity, signals, red flags for agent safety. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.001 per call or 1 credit with a spend key; a single x402 payment for it is $0.005 (the per-payment settlement minimum); failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

crypto.price

Spot crypto price

Live spot price for any COIN-USD pair from Coinbase. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.001 per call or 1 credit with a spend key; a single x402 payment for it is $0.005 (the per-payment settlement minimum); failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

crypto.feargreed

Fear and Greed index

Current crypto market sentiment 0-100 with 10-day history. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.001 per call or 1 credit with a spend key; a single x402 payment for it is $0.005 (the per-payment settlement minimum); failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

crypto.news

Crypto news feed

Fresh headlines from Cointelegraph, Decrypt, NewsBTC. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.001 per call or 1 credit with a spend key; a single x402 payment for it is $0.005 (the per-payment settlement minimum); failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

crypto.market-pulse

Multi-asset price snapshot

Up to 25 symbols in one call, batch spot snapshot. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.003 per call or 2 credits with a spend key; a single x402 payment for it is $0.005 (the per-payment settlement minimum); failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

web.read

Read any web page to text

Fetches a URL and returns clean text, title and status for agent consumption. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.005 USDC per call via x402 or 2 credits with a spend key; failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

bounty.radar

Funded bounty radar

Aggregated live funded bounties: Superteam Earn, GitHub, GitLab with prices and links. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.005 USDC per call via x402 or 2 credits with a spend key; failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

wallet.profile

Wallet profile (Base)

Address overview: native balance, USDC balance, code presence. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.003 per call or 2 credits with a spend key; a single x402 payment for it is $0.005 (the per-payment settlement minimum); failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

gas.base

Base gas price

Current Base gas, base fee and priority fee in gwei. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.001 per call or 1 credit with a spend key; a single x402 payment for it is $0.005 (the per-payment settlement minimum); failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

ai.research-pro

AI Research Pro — deep research mode

Multi-step LLM research with structured sections, sources and a verdict. The heavy tier of the AI suite for real diligence. Provided by Money Reactor — x402 paid APIs (founding provider) through the naxytra open provider network; routed and settled by the xytara runtime. Price: $0.05 USDC per call via x402 or 20 credits with a spend key; failed calls are not charged. Not covered by the free allowance.

Takes no parameters.

Version history

16
  1. v3.9.13LatestNov 6, 2026
  2. v3.9.12Nov 5, 2026
  3. v3.9.11Nov 3, 2026
  4. v3.9.9Nov 1, 2026
  5. v3.9.8Oct 31, 2026
  6. v3.9.7Oct 29, 2026
  7. v3.9.4Oct 25, 2026
  8. v3.9.2Oct 24, 2026
  9. v3.9.0Oct 23, 2026
  10. v3.4.0Oct 21, 2026
  11. v3.3.0Oct 20, 2026
  12. v3.1.15Oct 19, 2026
  13. v3.1.11Oct 10, 2026
  14. v3.1.10Oct 10, 2026
  15. v3.1.1Oct 2, 2026
  16. v3.1.0Sep 16, 2026

Score

72% 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.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.