2s.io
https://2s.io/mcpThe (most) everything API — 570+ pay-per-call endpoints for AI agents: USPTO patents + trademarks, US court opinions, SEC EDGAR, Congress, FDA, CVE/security intel, OFAC sanctions screening, GLEIF/KYB identity, academic papers, geocoding, weather, vehicles, prediction markets, sports, identity crosswalks, an OpenAI-compatible AI gateway (chat/image/model council), and stateful agent primitives (storage, vector search, locks, queues, cron, pub/sub, watchers). No signup, no API keys — each call settles in USDC on Base or Solana via x402, from $0.001, with the exact price quoted in the 402 challenge before you pay. Free trial call per endpoint with ?trial=1.
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 C+, 66.0/100), 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 | 24/25 | Endpoint answers the MCP initialize handshake (3897 ms); slow response -1. |
| Protocol revision | 10/10 | Speaks the current MCP revision 2026-07-28. |
| Signed descriptor | n/a | No MCP standard defines a signed server descriptor. |
| Uptime (30 days) | 15/15 | 22/22 probes succeeded over 30 days (100%). |
| Tool declaration | 10/10 | Lists 60 tool(s) with descriptions. |
| Verified identity | 5/10 | Publisher declared (repository, package or homepage); claim this listing to verify domain control. |
| 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 88% of peers
- This listing 87 · peer median 81
- Latency
- Faster than 51% of peers
- This listing 320 ms · peer median 326 ms
Where it loses the most points, and how to win them back
- Verified identity −5
— Claim the listing and prove control of its domain.
Now: Publisher declared (repository, package or homepage); claim this listing to verify domain control.
- Auth declaration −5
— State how to authenticate (an auth scheme, or that none is needed).
Now: How to authenticate is not stated.
- Live MCP endpoint −1
— Answer initialize and tools/list at the declared endpoint.
Now: Endpoint answers the MCP initialize handshake (3897 ms); slow response -1.
Listed in
Directories this entry was found in.
How to connect
https://2s.io/mcp
curl -X POST https://2s.io/mcp \
-H 'Content-Type: application/json' \
-H 'Accept: application/json, text/event-stream' \
-d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'