X402 Checks is answering right now. Last checked 2 min ago. It exposes 4 tools.
Machine-payable deterministic identifier checks + signed XDR-1 receipts for agents.
The linked repository no longer exists on GitHub — it was deleted or made private.
What changed 30
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 October 2026. No other catalogue keeps this.
Tools have disappeared from this server
A tool that vanishes takes a piece of your agent with it, and the change arrives silently. Watch this server and every such change lands in your inbox.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.
claude mcp add x402-checks --transport http https://api.code402.dev/mcp{
"mcpServers": {
"x402-checks": {
"url": "https://api.code402.dev/mcp"
}
}
}[mcp_servers.x402-checks]
url = "https://api.code402.dev/mcp"{
"mcpServers": {
"x402-checks": {
"url": "https://api.code402.dev/mcp"
}
}
}{
"mcpServers": {
"x402-checks": {
"url": "https://api.code402.dev/mcp"
}
}
}Available tools 4
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
reconcile
screen_entity
solvency_check
verify_id
Tools removed
Tools this server used to expose. Anything built against them stopped working on the day they went.
balance_check
batch_validate
block_info
calculate_fx_savings
check_price
clean_markdown_scraper
context_distill
crypto_ticker
erc20_balance
fx_spot_price_oracle
gstin_check
iban_check
ifsc_check
india_supplier_check
instant_json_schema_verifier
lei_check
pre_disbursement_guard
receipt_verify
sanctions_address_screen
swift_bic_check
token_contract_risk
tx_activity
vat_mod97_check
vendor_onboarding_pack
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://api.code402.dev/mcp | streamable-http | answering | 255 ms | 2 min ago |
Alternatives to X402 Checks
same job, measured the same wayFail-closed deterministic checks and hash-chained receipts for AI agent outputs via MCP.
Deterministic banking, LEI, VAT, SWIFT & compliance checks via MCP with signed XDR-1 receipts.
Deterministic market-state engine for trading agents — state, gate, coordinates, with receipts.
Deterministic authorization and security guard for AI agent actions with signed receipts.
The record layer for the machine age: counter-signed receipts and agent action records.
Read-after-write receipts for agents: did your write actually land? Free, signed, re-checkable.
Scoped deterministic SRD 5.2.1 rules checks for agents — applied rules cited, boundaries explicit.
Deterministic payment policy guardrail for AI agents - budgets, allowlists, signed mandates.
X402 Checks — questions
Answers built from our own checks of this server.