xyz.chainverdict/chainverdict

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Pay-per-call x402 checks before an agent moves money: token safety, wallet risk, identifiers.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "chainverdict": {
      "url": "https://chainverdict.xyz/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (20)

• payment_info read-only

  Free. Explains how to call the paid tools on this server: the x402 protocol, the network and asset, the settlement address, and the price of every tool.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• token_verdict read-only

  Heuristic ERC-20 safety verdict on Base: bytecode risk capabilities, ownership, metadata, 0-100 score, hold/caution/avoid. $0.01 per call.

  Parameters:

  • address (required) — string — ERC-20 token contract address on Base (0x-prefixed, 42 chars)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• wallet_dossier read-only

  Profile of a Base address: EOA vs contract, balance, activity band, flags. $0.01 per call.

  Parameters:

  • address (required) — string — Base address to profile (0x-prefixed, 42 chars; EOA or contract)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• validate_iban read-only

  IBAN mod-97 checksum + country length rules. $0.001 per call.

  Parameters:

  • iban (required) — string — IBAN including 2-letter country prefix (e.g. DE89 3704 0044 0532 0130 00; spaces tolerated)

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• validate_vat read-only

  EU VAT format validation with deterministic checksums (DE, IT, LU, PL, SI). $0.001 per call.

  Parameters:

  • vat (required) — string — EU VAT number including country prefix (e.g. DE123456789, LU12345678)

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• validate_bic read-only

  BIC/SWIFT structural validation and decomposition. $0.001 per call.

  Parameters:

  • bic (required) — string — BIC/SWIFT code, 8 or 11 characters (e.g. DEUTDEFF or DEUTDEFF500)

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• html_to_markdown read-only

  Convert raw HTML to clean Markdown. $0.002 per call.

  Parameters:

  • html (required) — string — Raw HTML string to convert (full document or fragment)

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• text_diff read-only

  Diff two texts (lines/words/chars). $0.002 per call.

  Parameters:

  • a (required) — string — Original text (left side of the diff)
  • b (required) — string — Modified text (right side of the diff)
  • mode — string — Diff granularity; defaults to lines

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• verify_payment read-only

  Decode ERC-20 transfers in a Base transaction: amounts, counterparties, confirmations. $0.02 per call.

  Parameters:

  • txhash (required) — string — Base transaction hash to decode (0x-prefixed, 66 chars)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• verify_token read-only

  Is this the real USDC/EURC/WETH/cbBTC/USDT on Base? Anti-phishing for stablecoin payments. $0.005 per call.

  Parameters:

  • query (required) — string — Token contract address (0x…) or symbol (e.g. USDC, WETH) to verify against the canonical Base list

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• validate_lei read-only

  Legal Entity Identifier checksum validation. $0.002 per call.

  Parameters:

  • lei (required) — string — 20-character Legal Entity Identifier (ISO 17442), e.g. 5299000J2N45DDNE4Y28

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• validate_isin read-only

  Securities identifier checksum validation. $0.001 per call.

  Parameters:

  • isin (required) — string — 12-character International Securities Identification Number (ISO 6166), e.g. US0378331005

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• security_email read-only

  Live DNS check of a domain's email authentication records. $0.01 per call.

  Parameters:

  • domain (required) — string — Domain to check, without scheme (e.g. example.com)
  • selector — string — Optional DKIM selector to look up (e.g. google, default, s1)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• security_tls read-only

  Live TLS handshake: cert validity, issuer, expiry countdown. $0.01 per call.

  Parameters:

  • domain (required) — string — Hostname to probe over TLS on port 443, without scheme (e.g. example.com)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• security_typosquat read-only

  Flags homoglyph and edit-distance look-alikes of known brands (c0inbase, b1nance, etc.). $0.005 per call.

  Parameters:

  • domain (required) — string — Domain to analyse for brand impersonation (e.g. c0inbase.com)
  • brands — string — Optional comma-separated brand list to check against (defaults to a built-in set)

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• data_gas read-only

  Live Base gas conditions: base fee, priority fees, congestion, est transfer cost. $0.002 per call.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• data_block read-only

  Latest block number, timestamp, tx count, gas utilization. $0.001 per call.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• data_token_supply read-only

  Total/circulating/burned supply and burn percentage for an ERC-20 on Base. $0.003 per call.

  Parameters:

  • address (required) — string — ERC-20 token contract address on Base (0x-prefixed, 42 chars)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• data_token_activity read-only

  Recent transfer count, volume, unique senders/receivers, activity level. $0.005 per call.

  Parameters:

  • address (required) — string — ERC-20 token contract address on Base (0x-prefixed, 42 chars)
  • blocks — number — Look-back window in blocks (default 2000, ~1 hour on Base)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• data_portfolio read-only

  ETH + canonical token balances (USDC/WETH/cbBTC/EURC) for an address. $0.004 per call.

  Parameters:

  • address (required) — string — Base address to read balances for (0x-prefixed, 42 chars)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

Repository

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.