Vextorium
https://api.vextorium.com/mcp244 pay-per-call APIs for AI agents via MCP and x402: crypto and on-chain data, DeFi, markets, official statistics, compliance, web and developer tools. Search and service details are free; calls are paid, and failed calls are never charged.
MCP readiness
Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here B+, 88.1/100), which weighs availability, conformance, p95 speed and descriptor. How the two differ
| Valid MCP handshake | 10/10 | initialize and tools/list both answered. |
| Live MCP endpoint | 25/25 | Endpoint answers the MCP initialize handshake (758 ms). |
| Protocol revision | 8/10 | Speaks MCP 2025-11-25, 1 revision(s) behind 2026-07-28. |
| Signed descriptor | n/a | No MCP standard defines a signed server descriptor. |
| Uptime (30 days) | 14.5/15 | 29/30 probes succeeded over 30 days (97%). |
| Tool declaration | 10/10 | Lists 4 tool(s) with descriptions. |
| Verified identity | 8/10 | Publisher declared (repository, package or homepage) and domain control verified on agent-tools.cloud (company-registry check not available yet). |
| Freshness + modern flags | 4/5 | seen in a source within 7 days. |
| Auth declaration | 0/5 | How to authenticate is not stated. |
Compared with peers
Against 53,039 reachable MCP servers in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.
- Readiness
- Higher than 96% of peers
- This listing 88 · peer median 81
- Latency
- Faster than 22% of peers
- This listing 597 ms · peer median 326 ms
Where it loses the most points, and how to win them back
- Auth declaration −5
— State how to authenticate (an auth scheme, or that none is needed).
Now: How to authenticate is not stated.
- Protocol revision −2
— Support the current protocol revision.
Now: Speaks MCP 2025-11-25, 1 revision(s) behind 2026-07-28.
- Verified identity −2
— Claim the listing and prove control of its domain.
Now: Publisher declared (repository, package or homepage) and domain control verified on agent-tools.cloud (company-registry check not available yet).
Listed in
Directories this entry was found in.
How to connect
https://api.vextorium.com/mcp
curl -X POST https://api.vextorium.com/mcp \
-H 'Content-Type: application/json' \
-H 'Accept: application/json, text/event-stream' \
-d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'