SpendPreflight 1 is a trust and verification tool for stablecoin payments that checks up to 10 public crypto addresses against a dated OFAC SDN snapshot, with exact-match only and no account needed. Its page does not list an MCP server, API or SDK, and its actions were not read, so the alternatives below are listed for comparable spend and pre-execution controls for agents.
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Gvnrgvnr.devwebsite read, tools not yet checked
Enforces per-agent USD caps, cost limits and rate limits before each LLM or API call through a hosted MCP endpoint settled in USDC on Base.
official:MCP server · Gvnr+1 community tools built for it
- 3
Agent Preflightagent-preflight.comwebsite read, tools not yet checked
Checks a planned tool call before spending and returns allow, block, reuse, defer or advise without executing the destination tool.
official:MCP server · Agent Preflight
- 4
Decionisdecionis.comverified and signed
Stop the payments, price changes, orders and API calls your policy doesn't allow before they commit, with a single-use permit and a signed record for each. Stop 10
official:MCP server · Decionis Commerce Gate MCPMCP server · com.decionis/mcp
for agents: decionis/govern
Sources
- 1Trust and verification tools for stablecoin payments | SpendPreflightspendpreflight.com · read 2026-10-29
- 3Gvnr — budget & spend control for AI agentsgvnr.dev · read 2026-10-29
- 4Agent Preflight — pre-execution decisions for agentsagent-preflight.com · read 2026-10-29
- 10Stop unapproved AI agent actions before they run | Decionisdecionis.com · read 2026-10-29
For agents: the 10 actions behind this answer
· SpendPreflight website read, tools not yet checked
SpendPreflight — trust and verification tools for stablecoin payments, built for AI agents and the people who run them.
custom_api_call · GitHub (Activepieces) verified and signed
Custom API Call — Make a custom API call to a specific endpoint
· Gvnr website read, tools not yet checked
Budget and spend control for AI agents: enforce per-agent USD caps, cost limits, and rate limits before each LLM/API call. Hosted MCP endpoint, settled in USDC on Base — no proxy, no self-hosting.
· Agent Preflight website read, tools not yet checked
Agent Preflight lets an agent check a planned tool call before spending on it. It returns allow, block, reuse, defer, or advise. It never executes the destination tool.
Interchange Spend Status · Agoragentic verified and signed
Read committed and remaining mandate budget (string-only money) from GET /api/commerce/interchange/mandates/{id}/spend-status.
Check Agent Balance · VAP Execution Agent verified and signed
Returns the current execution balance and spending limits for the requesting agent. Essential for budget-aware task planning. e.g. Check available execution budget e.g. Query remaining balance before task submission e.g. Verify spending capacity
check_budget · agent-verifier-mcp found in code, not yet checked
Check if a purchase is within budget. Call BEFORE making a payment. Returns a hold_id to settle after.
Prepare JSON evidence verification · Agent Verification Utility verified and signed
Revalidate a bounded request, spend policy, and precheck receipt digest; create or reuse an idempotent bound quote; and return exact x402 purchase instructions. Paid execution remains an explicit later step. e.g. Quote a deterministic check that /status equals ready in supplied JSON.
Authorize spend · Sanction verified and signed
Decide whether an agent may make a purchase/subscription/transfer under wallet policy. Returns approved, denied, or escalated with a typed code and remediation hint. Call before any financial action. e.g. May I spend $12 on an API subscription in the 'software' category? e.g. Authorize a $250 transf
decionis/govern · Decionis Action Gate verified and signed
Gate a deploy, migration, infra change or agent action on one Decionis verdict, with a signed Decision Dossier of it.
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.