Name: tool-call-diff
Price: 0.008 USDC
Availability: InStock

$ man tool-call-diff

agentutility / agentops / tool-call-diff

PRICE / CALL

$0.008

USDC · base mainnet · scheme: exact

METHOD

POST

CLUSTER

agentops

CATEGORY

uncategorized

STATUS

● live

NAME

tool-call-diff — deterministic tool call diff between two agent run sequences

SYNOPSIS

POST https://x402.agentutility.ai/tool-call-diff
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }

↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.

DESCRIPTION

Deterministic tool call diff between two agent run sequences. Send before and after arrays of tool calls (name/args or tool/arguments shape) and get back which calls were added, removed, or reordered, plus per-call argument drift with the exact changed argument paths from a deep compare. No LLM involved, so results are exact and reproducible: the same replay comparison always returns the same diff. Built for agent regression diff work: confirming a prompt or code change didn't silently alter which tools an agent calls or what it passes them. Use it as a tool call diff API, an agent action drift checker, or a replay comparison step in CI before shipping an agent change.

INPUT — request schema

property	type	description	req?
before	array	The baseline tool-call sequence: a JSON array of call objects, each shaped {name, args} (or {tool, arguments} / {tool_name, input}). Required, max 500 entries.	required
after	array	The new tool-call sequence to compare against 'before', same shape. Required, max 500 entries.	required

OUTPUT — response shape

field	type	description
before_count	string	—
after_count	string	—
added	string	—
removed	string	—
reordered	string	—
arg_drifted	string	—
unchanged_count	string	—
identical	string	—

EXAMPLES — two ways to call

EXAMPLE 1 · curl

curl -X POST https://x402.agentutility.ai/tool-call-diff \
  -H 'Content-Type: application/json' \
  -d '{ }'

first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.

EXAMPLE 2 · mcp

# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the tool-call-diff tool from your MCP-aware agent.

MCP server handles payment automatically — your coding agent just calls the tool by name.

METADATA

tags: agentopstoolcalldifftool-call-diff
methods: POST
cluster: agentops
price: $0.008 USDC per call

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