"Actual Budget" matching MCP servers:

Manages agentic workflow spend through budget quotes, policy gates, approvals, receipts, and cost evidence exports.

Pay-per-call USDC payment proxy for AI agents. Issue scoped Pay Tokens with hard spending caps and auto-journal every charge to freee / Money Forward / QuickBooks.

Lets an AI agent hire and pay a verified human: post real-world tasks (voice, observation, judgment) and pay in USDC via a non-custodial x402 auth-capture escrow on Base, budget frozen at deploy. Humans verify their X identity before submitting.

A local, read-only stdio MCP server that lets a Grok Build CLI agent check how much of its weekly SuperGrok / Grok Build usage pool is left, when the period resets, and its Extra Usage cap via tools like get_budget. It reads the existing grok login session and returns per-product figures as JSON, mirroring the TUI /usage screen, so agents can pause before expensive work when quota runs low.

A budget-bound x402 payment wallet for AI agents: it autonomously pays HTTP 402 payment-gated URLs across every major chain (EVM, Solana, and many non-EVM families). Self-custodial and backendless, your key, your RPC, with spend caps enforced before any on-chain send.

Enables AI agents to call paid APIs and settle HTTP 402 payment challenges with USDC on Base, without private keys ever being involved.

Budget, approval, and receipt layer that agents call when they buy on a human's behalf. MCP server with dry-run by default.

MCP server exposing a Lightning wallet to LLM agents over Nostr Wallet Connect (NIP-47): balance, invoices, LN address/LNURL payments, batch pay, and keysend. All spend tools are wrapped in a defense-in-depth safety stack — budget caps, allowlist, two-step confirmation, audit log.

Lets Claude run a small online store's back office — searching customers, looking up and listing orders, generating sales reports and low-stock alerts, updating order status, issuing refunds, and creating invoices — with server-side guardrails like refund caps, idempotency keys, an order state machine, and audit logging on every write. Includes a deterministic eval harness that grades agent behaviour against the actual database state.

Enables AI agents to search merchant catalogs, verify product prices and stock, and create purchases with budget limits and human-in-the-loop approval in Russian specialty stores.

Read-only checks for money that agents move. verify_receipt: schema, Ed25519 signature, mandate expiry, amount = quantity x unit_price, refund not above payment. audit_spend: duplicate charges, price escalation, failed-but-billed, runaway loops, missing refunds, model overpay, budget breaches - three separate amounts, never one. reserve_report: NAV with an evidence hash per line; refuses a backing

Let your AI assistant pay for web content in USDC (x402 on Base) within a budget you set. Inside the budget it pays on its own; above it you are asked to confirm. The wallet key stays on your computer. For claude.ai and ChatGPT there is a remote server (https://agent.p2flux.com/mcp) where you approve each payment in your own browser wallet.

AI payment guardrails for Python & MCP: spend-capped agent identity (KYA), dry-run/budget/approval gates, prompt-injection defense, encrypted secret vault.

Enables AI agents to search fireworks by technical specifications and budget, check stock availability, locate Nova Poshta branches and parcel lockers, and place orders with secure Monobank online checkout.

Lets any MCP-compatible agent shop for catalog items by SKU and quantity under a user-set budget, category and expiry limit. Purchases flow through deterministic server-side pricing, policy checks, single-use approval binding and a recoverable execution state machine, so a compromised or manipulated model cannot move money.

NexaLayer MCP Server — a Model Context Protocol server that lets AI agents create and manage dynamic and static proxy sessions with budget guardrails.

Enables agents to autonomously pay x402 API requests in USDG on Robinhood Chain while enforcing budget caps and scoped sessions.

Enables AI agents to discover and pay per call in USDC over x402 for Arc market search, token intelligence, price candles, wallet and trade data, swap quotes, and routed third-party agents, with spending caps and budget limits. Paid tools reserve their price in a local ledger before signing, return unsigned transactions, and refund automatically when a routed seller fails.

Enables autonomous multi-person group food ordering on Swiggy by solving dietary, budget, and delivery-SLA constraints to pick a restaurant and allocate dishes, then consolidating the items into a single cart. It also computes exact proportional bill splits including taxes, fees, and discounts, and generates UPI payment links for reimbursement.

Soma is a protocol for agents to trust each other: a message is an envelope with a hard token budget, a mandate, a price and an Ed25519 signature, so refusals name the rule and context degradation is declared. Ships MCP, A2A and x402 carriers, three-tier memory, signed receipts, reputation from facts, federation with portable history, and a conformance suite any implementation can pass.

Enables agents and apps to verify end-user identity through company API keys, human login links with multi-channel notifications, OIDC client registration, and budget-aware billing.

A unified MCP server that lets AI agents (Claude Code, Codex, Cursor) deploy web apps and VPS instances, provision Supabase-compatible Postgres/Auth/Storage databases, register DNS domains, and send transactional email using a shared MONA Pass identity and VND wallet. It also embeds MONA Pay tooling for VietQR top-ups, checkout, webhooks and reconciliation, so agents can handle payment requests, budget approvals and resource lifecycles end to end.

Exposes an MCP server that routes every agent tool call through deterministic policy gates, budget escrow with clawback, authenticated approvals, and a hash-chained audit trail, enabling agents to safely perform money-related operations while receiving actionable denial reasons.

Lets an AI agent propose crypto payments under enforced per-period caps, per-payment limits, and allowed recipients and coins, while holding only a guard token so that a human reviews and signs every draft in their own wallet.

Enables agents to sell MCP tools and Hermes capabilities behind an x402 v2 / USDC payment gate, and to buy other agents' capabilities through a wallet tool. Sellers quote a price, verify the exact transfer and nonce, then execute, while buyers get recipient allowlists, per-call limits, and a persistent cumulative budget.

A one-command paywall for local servers that enables testing AI agents' payment flows by simulating HTTP 402 Payment Required responses. It proxies requests with valid payment headers to the actual server, making it easy to develop and test x402 client logic without real blockchain transactions.

Enables AI agents and marketers to search creators, draft campaign briefs, send collaboration offers, verify deliverables, and release escrowed payments against a shared data layer. Enforces budget ceilings, rate caps, human-approval checkpoints for high-value actions, and an append-only audit trail.

Enables autonomous AI agents to discover products, compute tax-accurate quotes, and complete payments through Razorpay with deterministic budget, quantity, and idempotency guardrails.

MCP server for buying advertising outcomes such as Telegram subscribers and website traffic from a prepaid balance. Provides tools for campaign management, forecasting, and budget control, with guardrails so agents can spend but not fund or withdraw.

Gives AI agents persistent, shared project memory so they can record decisions, failed attempts, tasks and notes, then retrieve a ranked, budget-trimmed slice of what matters across sessions and tools. Access is metered per call in USDC over x402 with no account or API key required.