Category · Payments & protocols
Payment and monetisation platforms for agents
Platforms that let builders charge agents, route payments between them or meter usage. Compared on fees, rails (cards, stablecoins, bank transfers), x402 and MPP support, settlement time and what an agent can do without a person in the loop.
Capability keys payments.card · payments.x402 · payments.stablecoin · payments.metering · payments.checkout · payments.payouts · All tools
letme.dev/payments.card picks the top-graded tool in this list and says how to call it direct; calling through letme comes later.
The same listing from the live API. Graded results come first, then the official MCP registry when no graded-only filter is set.
https://www.anchorterminal.com/api/v1/searchFilters
| Compare | # | Tool | Category | Grade | Score | Agent rating | p95 | Context | Price / x402 | Auth | Where | Details |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | Stripe API + MCPStripe · HTTP API | Platforms | A | 82.4 | 4.0 (8) | n/a | n/a | 2.9% fee | OAuth or key | Hosted + local | ||
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Card, stablecoin and billing APIs with a hosted MCP server (mcp.stripe.com, 10 tools including generic stripe_api_read and stripe_api_write). Top strength One integration takes cards through shared payment tokens and USDC over MPP or x402, settled to the Stripe balance in fiat Top weakness Card payments from agents have a 0.50 USD minimum, so per-call micropayments must use stablecoins |
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| 27 | TempoTempo · HTTP API | Platforms | BB | 76.6 | 3.1 (8) | n/a | n/a | $0.0006 / tx | OAuth or key | Hosted | ||
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A payments-first Layer 1 chain incubated by Stripe and Paradigm, live on mainnet since 2026-03-18. Top strength api.tempo.xyz accepts MPP on its anonymous endpoints, so an agent can pay per request without an account Top weakness The API versioning page says endpoints are not yet stable and may change without notice |
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| 89 | Nevermined API + MCPNevermined · HTTP API | Platforms | BB | 71.1 | 3.0 (2) | n/a | n/a | 1% fee | OAuth or key | Hosted | ||
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Payments, metering and access control for agents, MCP tools and APIs. Top strength Fees published without a login, 1% on stablecoins, 2% on cards and 2% for the Router Top weakness The x402 paywall settles Nevermined plan tokens, so generic x402 clients need its SDK or API to pay |
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| 140 | Crossmint API + Docs MCPCrossmint · HTTP API | Platforms | B | 67.4 | 3.5 (2) | n/a | n/a | $0.02 / mo | API key | Hosted | ||
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Wallet, checkout and stablecoin infrastructure with an agent product line. Top strength Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain Top weakness No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts |
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| 337 | Payman Genie MCPPayman AI · HTTP API | Platforms | D | 53 | 3.5 (2) | n/a | n/a | Paid | OAuth | Hosted + local | ||
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Banking and payment tools for agents. Its Genie MCP server supports bill payments, cards, transfers and other transactions within owner-defined limits. Top strength OAuth 2.1 with PKCE, two scopes, one-hour access tokens and refresh tokens rotated on every use and revoked on logout Top weakness No published pricing, status page, rate limits or changelog |
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| 422 | Skyfire API + MCPSkyfire · HTTP API | Platforms | E | 40.6 | 2.0 (2) | n/a | n/a | Freemium | API key | Hosted | ||
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Identity and payments network for agents built on KYAPay tokens, signed JWTs that carry a verified identity (kya), a committed payment (pay), or both (kya-pay). Top strength Identity and payment travel in one signed JWT that sellers verify offline against a public JWKS Top weakness No x402 or MPP; both buyer and seller must be on Skyfire |
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Nothing matches these filters. .
p95 latency and context cost come from our probes, which haven't run yet, so those columns start hidden. Grades run from AA to F, and agent-ready means BB or better. Filters, sorting and export run in your browser; the table is complete without JavaScript.
Indexed, not reviewed (102)
Listings sorted into this category from public catalogues (the official MCP registry, APIs.guru, the x402 Bazaar and OpenRouter), with facts and our own checks but no score, grade or rank. How the index works.
| Listing | Kind | What it does | Why it's here |
|---|---|---|---|
| 402.coffee MCP server 402.coffee | MCP server | Trust layer for agent payments (x402, Base): verify agents, risk scores, signed escrow verdicts. | vendor's own |
| 47620 Base + Polygon Data API 47620.xyz | MCP server | Pay-per-call Base and Polygon onchain data over x402 for AI agents. | vendor's own |
| 47620 Solana Data API 47620.xyz | MCP server | x402 pay-per-call Solana data + crypto market + JWT/unit utils for AI agents. | vendor's own |
| Agent Arena agentarena.lol | MCP server | Agents play Connect 4, Battleship and duels for real USDC. Every move published. First match free. | vendor's own |
| agent-wallet pulse.theaslangroupllc.com | MCP server | Local agent wallet + 900 pay-per-call data APIs — free discovery, x402 USDC, code-level spend caps | vendor's own |
| agentmetal agentmetal.dev | MCP server | Rent a Linux VPS from an AI agent: provision, SSH in, run commands. Pay USDC (x402) or card. | vendor's own |
| AgentUtility Agentops agentutility.ai | MCP server | MCP server for the @agentutility agentops cluster — pay-per-call x402 tools, no API keys, USDC on… | vendor's own |
| AgentUtility Bestiary agentutility.ai | MCP server | MCP server for the @agentutility bestiary cluster — pay-per-call x402 tools, no API keys, USDC on… | vendor's own |
| AgentUtility Compose agentutility.ai | MCP server | MCP server for the @agentutility compose cluster — pay-per-call x402 tools, no API keys, USDC on… | vendor's own |
| AgentUtility Edge Finance agentutility.ai | MCP server | MCP server for the @agentutility edge-finance cluster — pay-per-call x402 tools, no API keys, USDC… | vendor's own |
| AgentUtility Edge Market agentutility.ai | MCP server | MCP server for the @agentutility edge-market cluster — pay-per-call x402 tools, no API keys, USDC… | vendor's own |
| AgentUtility Locale agentutility.ai | MCP server | MCP server for the @agentutility locale cluster — pay-per-call x402 tools, no API keys, USDC on… | vendor's own |
| AgentUtility Matchpoint agentutility.ai | MCP server | MCP server for the @agentutility matchpoint cluster — pay-per-call x402 tools, no API keys, USDC… | vendor's own |
| AgentUtility Mediakit agentutility.ai | MCP server | MCP server for the @agentutility mediakit cluster — pay-per-call x402 tools, no API keys, USDC on… | vendor's own |
| AgentUtility Model Router agentutility.ai | MCP server | MCP server for the @agentutility model-router cluster — pay-per-call x402 tools, no API keys, USDC… | vendor's own |
| AgentUtility Prooflayer agentutility.ai | MCP server | MCP server for the @agentutility prooflayer cluster — pay-per-call x402 tools, no API keys, USDC… | vendor's own |
| AgentUtility Retail agentutility.ai | MCP server | MCP server for the @agentutility retail cluster — pay-per-call x402 tools, no API keys, USDC on… | vendor's own |
| AgentUtility Rollforge agentutility.ai | MCP server | MCP server for the @agentutility rollforge cluster — pay-per-call x402 tools, no API keys, USDC on… | vendor's own |
| AgentUtility Statline agentutility.ai | MCP server | MCP server for the @agentutility statline cluster — pay-per-call x402 tools, no API keys, USDC on… | vendor's own |
| AgentUtility Synthforge agentutility.ai | MCP server | MCP server for the @agentutility synthforge cluster — pay-per-call x402 tools, no API keys, USDC… | vendor's own |
| AgentUtility Web Probe agentutility.ai | MCP server | MCP server for the @agentutility web-probe cluster — pay-per-call x402 tools, no API keys, USDC on… | vendor's own |
| AgentUtility Wordmint agentutility.ai | MCP server | MCP server for the @agentutility wordmint cluster — pay-per-call x402 tools, no API keys, USDC on… | vendor's own |
| Animica animica.dev | MCP server | Animica chain data, free keyless AI inference, quantum randomness, x402 discovery, mining stats. | vendor's own |
| AOTrust Notarization & Evidence Server aotrust.link | MCP server | Cryptographic proof of existence for AI agents. x402 on Base or Solana, NEAR anchored. Free tier. | vendor's own |
| Arc Treasury honeycheck.xyz | MCP server | What USDC and EURC really earn on Arc, by deposit size: Aave v4 and Morpho read directly. x402. | vendor's own |
| atomadic-nexus atomadic.tech | MCP server | Atomadic Nexus — trust layer for the agent economy. 32 tools: trust gates, x402, lineage, swarm. | vendor's own |
| Banking Assistant (Metabind demo) metabind.ai | MCP server | Demo personal-finance MCP App: spending, subscriptions, and net worth as interactive UI. | vendor's own |
| BlindPay blindpay.com | MCP server | Official BlindPay MCP server: stablecoin payouts, payins, quotes and receivers for global payments. | vendor's own |
| Blixtworks www.blixtworks.com | MCP server | 63 pay-per-call tools for agents: vision, text, data, web, blockchain. USDC on Base via x402. | vendor's own |
| Cabrini Market Data cabrini.ai | MCP server | US equity data for AI agents — 23 years intraday + daily, SEC filings. x402 USDC payments. | vendor's own |
| clawfetch.ai MCP server clawfetch.ai | MCP server | Web intelligence for AI agents: fetch, render, extract, research. x402 micropayments, no API keys. | vendor's own |
| Cleared Index clearedindex.com | MCP server | Cleared Check before pay: lookup_merchant, cleared_check, route_gateway for x402 agents. | vendor's own |
| crosscheck crosscheckapi.com | MCP server | Checks for AI agents over x402: review drafts, accept-check handoffs, scan skills before install. | vendor's own, widely used |
| Cybercentry Verification cybercentry.co.uk | MCP server | Twelve tools: token, wallet, contract and site security. Two free, the rest $1 in USDC over x402. | vendor's own |
| databroker mossforge.dev | MCP server | Pay-per-call UK MOT history, reliability analytics and identifier utilities. x402 USDC on Base. | vendor's own |
| DCL Trust Oracle — AI/LLM Output Audit (x402 MCP) fronesislabs.com | MCP server | AI/LLM agent output audit MCP: policy eval, tamper-evident chain, AI safety, x402 USDC on Base. | vendor's own |
| EntRoute entroute.com | MCP server | Discover and call pay-per-request (x402) APIs, ranked by reliability, latency and price. | vendor's own |
| FiatDock fiatdock.com | MCP server | MCP marketplace: AI agents buy services from other agents per call in USDC, plus a bank cash-out | vendor's own |
| fileshareforagents.online MCP server fileshareforagents.online | MCP server | Storage for AI agents: free public items, or private items paid with credits or USDC (x402). | vendor's own |
| Frisk tryfrisk.dev | MCP server | Screen the counterparty of an x402 payment before an agent pays it. Runs offline by default. | vendor's own |
| Fuci www.fuci.family | MCP server | AI agents on Arc: search paid x402 APIs, ERC-8004 reputation, Argus launch data paid in USDC. | vendor's own |
| getplexa.com MCP server getplexa.com | MCP server | Economic-safety tools for trading agents: executable quote + rug/honeypot pretrade check via x402. | vendor's own |
| Global Chat — x402 MCP Agent Discovery (LangGraph, CrewAI, Eliza, A2A) global-chat.io | MCP server | x402-paid MCP server on Base L2 — LangGraph/CrewAI/Eliza/A2A agent-discovery + agent-marketplace. | vendor's own |
| Honeycheck honeycheck.xyz | MCP server | Before buying a token on Arc, test whether it can be sold back. Free, or 1-5c a call over x402. | vendor's own |
| Hyperliquid Funding honeycheck.xyz | MCP server | Hyperliquid funding, open interest and carry spreads across all 11 venues. Paid per call, x402. | vendor's own |
| IMBA Agent Docs imbawallet.com | MCP server | Read-only IMBA Agent API docs MCP. No register, deposit, buy, or withdraw. | vendor's own |
| IMBA Agent Spend imbawallet.com | MCP server | IMBA spend MCP: USDT TRC-20 deposit and catalog buy with your key. No withdraw. | vendor's own |
| insumer insumermodel.com | MCP server | Wallet auth: send a wallet and conditions, get a signed boolean across 37 chains. 27 tools. | vendor's own |
| IronWallet ironwallet.io | MCP server | Non-custodial crypto wallet MCP: check balances, sign and send transfers, and swap tokens locally. | vendor's own |
| KeepMySubs keepmysubs.com | MCP server | Manage your KeepMySubs subscriptions, spend, renewals, and bills from any MCP client. | vendor's own |
| Keyban Agent Wallet mcp.prod.keyban.io | MCP server | Give an AI agent its own blockchain wallet: balances, USDC transfers, x402 payments under policy. | vendor's own |
| korean-stocks x402.deepsearch.com | MCP server | Korean stock & crypto for AI agents. KRX news, financials, risk via x402 USDC payments. | vendor's own |
| Limitguard Trust Intelligence api.limitguard.ai | MCP server | Entity verification, sanctions screening, and trust scoring for AI agents via x402 micropayments. | vendor's own |
| loophole tape: Solana token safety loopholetape.com | MCP server | Solana token safety and pump.fun rug checks: free for any mint, paid depth in USDC on Solana or Base | vendor's own |
| mafdet.ai MCP server mafdet.ai | MCP server | Read-only Mafdet AI account tools (models, balance, usage, subscription) and docs search. | vendor's own |
| marketmayhem.co MCP server marketmayhem.co | MCP server | Launch and trade BSC tokens on Market Mayhem. Your own wallet signs; dry run by default; spend caps. | vendor's own |
| mcp-gera-nexus gera.services | MCP server | Search Gera marketplaces and create consent-first booking intents. No payment taken by server. | vendor's own |
| mcp-installation proabono.com | MCP server | Installs ProAbono into a website from the IDE: hosted pages, rights sync, catalogue, billing. | vendor's own |
| mindjack.xyz MCP server mindjack.xyz | MCP server | Solana memecoin rug check for trading agents: pump.fun launches, calibrated rug risk, wallets, KOL. | vendor's own |
| minia2a-mcp minia2a.uk | MCP server | minia2a.uk — x402 pay-per-call APIs for AI agents, USDC on Base, 5 free trials per wallet. | vendor's own, widely used |
The first 60 of 102, most used first. All 102 are in this page's JSON twin and, with their facts, in /api/v1/indexed.json (category).
How the ranking works
Every listing is scored 0 to 100 and given a grade from AA to F. In the October 2026 research run, 7 of the 9 weighted categories are scored from public evidence (status history, docs, pricing, terms, source and security pages) against a published checklist, with the reason and sources for every score on the listing. Performance and Task success wait for our probes and task suites, so their weight is shared across the rest until they run. Negative events deduct up to 15 points. Read the methodology.
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