QuickBuild agent tools (x402 pay-per-call)

https://quickbuild.quynguyenbac.workers.dev/mcp

● healthy

Remote MCP server (streamable-http) with pay-per-call tools settled in USDC on Base via x402: website launch audit, URL metadata, URL to Markdown, summarize, translate, text-to-image, webpage screenshot, text-to-speech, Base gas/wallet/token/tx lookups, OpenAI-compatible LLM chat, text embeddings (bge-m3), document rerank, caller IP geo. Prices $0.001-$0.05 per call.

Transport

streamable-http

Auth

—

Cost

—

Protocol revision

2025-06-18

negotiated, not declared

MCP readiness

B · 83/100

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+, 88.8/100), 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 (516 ms).
Protocol revision	6/10	Speaks MCP 2025-06-18, 2 revision(s) behind 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 40 tool(s) with descriptions.
Verified identity	7/10	Namespace verified by the official MCP Registry (GitHub or DNS proof at publish time).
Freshness + modern flags	2/5	seen within 30 days.
Auth declaration	0/5	How to authenticate is not stated.

Applicable criteria total 90 points, scaled to 100.

Responsiveness: Responsive (516 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).

Measured 2026-11-11.

Nine criteria, the same as the A2A readiness score, read from our daily MCP probe (initialize + tools/list) and 30-day probe history. No MCP standard defines a signed server descriptor, so that criterion is n/a and the other 90 points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. Display only: search order uses the quality grade.

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 60% of peers; This listing 83 · peer median 81
Latency: Faster than 96% of peers; This listing 64 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 −4 — Support the current protocol revision.
Now: Speaks MCP 2025-06-18, 2 revision(s) behind 2026-07-28.
Verified identity −3 — Claim the listing and prove control of its domain.
Now: Namespace verified by the official MCP Registry (GitHub or DNS proof at publish time).

How many agent tools actually work · All statistics

Listed in

Directories this entry was found in.

submission since 2026-10-21 ↗ mcp-registry since 2026-10-21 capkey since 2026-10-26 ↗

How to connect

MCP endpoint (streamable-http)

https://quickbuild.quynguyenbac.workers.dev/mcp

JSON-RPC initialize probe

curl -X POST https://quickbuild.quynguyenbac.workers.dev/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'

Homepage

https://quickbuild.quynguyenbac.workers.dev/mcp

Listed at (submission)

https://quickbuild.quynguyenbac.workers.dev/mcp