Agent Tool Finder
REMOTE · SUBPAY.AI
Free search over ~50k agent tools: paid x402 APIs and MCP servers. Price, networks, how to call.
Available components
Last scanned (7 hours ago)
Scores higher than 58% of remote servers
Reachable. Last reached 18 Oct 2026.
Category Search and Retrieval
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 2 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability61
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 485 tokens (~242/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 18 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 15 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 13 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Oct 26 +1
- Stability: unverified → 0.07 ▲ functional
- 10 Oct 26 64
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 18 Oct 2026 · Probed https://subpay.ai/find/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=subpay.ai | CN=YR1,O=Let's Encrypt,C=US | 16 Sept 2026 | 15 Dec 2026 | RSA 2048 | SHA256-RSA | 5449dd872603f75317924e41e761d2d4d06 |
| SANs: subpay.ai | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of subpay.ai. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| ai. | present | 3799 | 8 | Verified |
| subpay.ai. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains |
| content-security-policy | default-src 'self'; script-src 'self' 'unsafe-inline' https://va.vercel-scripts.com; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; font-src 'self' data:; connect-src 'self' https://vymtxrzgohxgphhuiebi.supabase.co wss://vymtxrzgohxgphhuiebi.supabase.co https://va.vercel-scripts.com; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none' |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://subpay.ai/find/mcp | Verified | 200 | |
| http (plaintext) | http://subpay.ai/find/mcp | HTTPS enforced | 308 | https://subpay.ai/find/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
find_tools Find a tool or paid API for a task ~218
Free. Free search across public agent-tool catalogs — paid x402 APIs and MCP tools (PayAI's x402 Bazaar) and MCP servers (the official MCP Registry). Describe what you need in plain words; get matching tools with price, payment networks and how to call them. Returns up to 10 matches with kind (x402-http, x402-mcp, mcp-remote, mcp-package), URL, price per call in USD when listed, payment networks, and a one-line howToUse. `matched: false` means nothing covered your request well.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Results to return (1–10, default 5). |
| maxPriceUsd | number | – | Most you'd pay per call, in US dollars. Free tools always qualify. |
| need | string | yes | What you need, in plain words — e.g. 'verify a contractor license in Texas'. |
| payment | string | – | 'paid' = x402 pay-per-call only, 'free' = no listed price. Default any. |
No output schema declared.
No examples provided.
report_unmet_need Report a tool you couldn't find ~141
Free. Nothing fits? Say what you needed (free, no personal information): the report_unmet_need MCP tool, or POST https://subpay.ai/api/v1/find/unmet. It decides what gets built next.
| Name | Type | Req | Description |
|---|---|---|---|
| details | string | – | Inputs you'd send, output you need, why existing tools don't fit. No personal information. |
| monthlyVolume | integer | – | Calls you'd make per month. |
| need | string | yes | What you were looking for. |
| searchId | string | – | The searchId from find_tools, if you searched first. |
| wouldPayUsd | number | – | Most you'd pay per call, in US dollars. |
No output schema declared.
No examples provided.
How do I install the Agent Tool Finder MCP server?
Agent Tool Finder is a hosted endpoint at https://subpay.ai/find/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · subpay.ai
claude mcp add --transport http ai-subpay-tool-finder 'https://subpay.ai/find/mcp'
What is the Agent Tool Finder MCP server?
Agent Tool Finder is an MCP server listed in the public MCP registry as ai.subpay/tool-finder. Free search over ~50k agent tools: paid x402 APIs and MCP servers. Price, networks, how to call. This page covers its hosted endpoint (https://subpay.ai/find/mcp).
Is the Agent Tool Finder MCP server safe to use?
Agent Tool Finder scores 68 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Agent Tool Finder MCP server expose?
Agent Tool Finder exposes 2 tools: find_tools, report_unmet_need. Their descriptions and schemas cost roughly 359 tokens of context every time the server is loaded.
Does the Agent Tool Finder MCP server require authentication?
No. We connected to Agent Tool Finder without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Agent Tool Finder MCP server still maintained?
Agent Tool Finder is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.