Prepaid balance for AI agents: one token, 1,500+ tools, caps, kill switch, signed receipts.
io.github.iamalanlui/apipay is a remote MCP server published at apipay.fly.dev. It has been probed 6 times since 9/13/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 308 ms, placing it among the faster endpoints. It offers a narrow, focused set of 8 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Risk: low
| Run | Era | Modern | ms | Legacy | ms | Versions |
|---|---|---|---|---|---|---|
| 2026-09-13 14:49:35 | Legacy | 400 | 403 | 200 | 403 | 2025-11-25 |
| 2026-09-13 12:47:19 | Legacy | 400 | 248 | 200 | 247 | 2025-11-25 |
| 2026-09-13 10:45:14 | Legacy | 400 | 242 | 200 | 225 | 2025-11-25 |
| 2026-09-13 08:43:04 | Legacy | 400 | 297 | 200 | 303 | 2025-11-25 |
| 2026-09-13 06:40:42 | Legacy | 400 | 501 | 200 | 509 | 2025-11-25 |
| 2026-09-13 04:35:29 | Legacy | 400 | 308 | 200 | 310 | 2025-11-25 |
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
search_apisSearch the apifare catalog of ready-to-call APIs (web search, scraping, weather, and more). Returns each API's slug, params, and per-call price in prepaid credits. Every miss is logged so missing APIs get added.
querystringrequiredcall_apiCall an API from the apifare catalog by slug (find slugs with search_apis). The cost in prepaid credits is deducted automatically and returned with the result.
slugstringrequiredparamsobjectget_vault_linkGet a secure one-time link where the user can save their OWN API key for a provider (BYOK). Never ask the user to paste an API key into the chat — always use this link instead. BYOK calls cost a flat 0.1 credits; the user's own provider account pays the provider.
providerstringrequiredcheck_balanceCheck the remaining apipay prepaid credit balance (1 credit = $0.01) and get the top-up link.
topupTop up the apifare balance from the owner's standing auto-refill mandate (if the owner enabled one). Charges within the owner's configured limits and returns the new balance. Without a mandate, returns payment instructions to relay to the user.
amount_usdintegervendor_callCall a vendor MANAGEMENT API (supabase, vercel, fly, resend, github, npm, cloudflare, lemonsqueezy) with the owner's vaulted root credential injected server-side. Native request/response; destructive, billing, and member/admin routes are blocked. The root token is never visible.
vendorstringrequiredmethodstringpathstringrequiredbodyobjectsecret_transferMove a secret from one vendor to another SERVER-SIDE — the value never enters this conversation. Example: fetch a Supabase service_role key and place it as a Vercel env var.
fromobjectrequiredtoobjectrequiredsecret_generateGenerate a random secret and place it directly at a vendor resource SERVER-SIDE — the value never enters this conversation.
toobjectrequiredbytesintegerEach block is one measurement round. Green: working response. Amber: responded but the server was returning errors (5xx). Red: no response at all.
Each cell is one probe run. Faded cells are incomplete probes — one leg did not answer, so the era is inconclusive.
The two probe legs separately: modern server/discover and legacy initialize.
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
Add this badge to your README — it updates automatically as measurements change.
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Sign up free to seeThe catalog entries whose name and description are closest to this one, found with the same index the search box uses.
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Dead-man switch monitors for cron & AI agents with dependency-cascade alerts. No account needed.
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