e-eSIM Catalog
https://e-esim.com/wp-json/e-esim/mcp ↗
Description
Search travel eSIM data plans worldwide with live prices, plan details and a buy link.
What our measurements say
e-eSIM Catalog is a remote MCP server published at e-esim.com. It has been probed 6 times since 9/14/2026. 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 3 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Tool names clearly indicate purpose
- Parameters are well-defined with required/optional flags
Weaknesses
- Third tool description is cut off mid-sentence
- No explicit error handling documentation
start_checkout— Description cuts off at 'no discount-c' without completion
Verdict
Event narrative
Sign up free to generateRaw observations
| Run | Era | Modern | ms | Legacy | ms | Versions |
|---|---|---|---|---|---|---|
| 2026-09-14 14:41:53 | Legacy | 200 | 271 | 200 | 288 | 2025-06-18 |
| 2026-09-14 12:38:15 | Legacy | 200 | 263 | 200 | 279 | 2025-06-18 |
| 2026-09-14 10:35:25 | Legacy | 200 | 273 | 200 | 290 | 2025-06-18 |
| 2026-09-14 08:31:43 | Legacy | 200 | 6712 | 200 | 7014 | 2025-06-18 |
| 2026-09-14 06:26:32 | Legacy | 200 | 312 | 200 | 340 | 2025-06-18 |
| 2026-09-14 04:24:59 | Legacy | 200 | 309 | 200 | 308 | 2025-06-18 |
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 108ms → warm 111ms (penalty 0ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
search_esim_plansFind e-eSIM travel eSIM plans for a destination (country or region). Returns the best-value plans with full specifications, prices and a direct link. Use when a user wants mobile data abroad.
destinationstringrequiredtypestringcurrencystringlanguagestring
get_plan_detailsFull details for one e-eSIM plan by product id: data allowance, validity, network, throttle behaviour, daily reset, full coverage country list, reviews, description and link.
product_idintegerrequiredlanguagestring
start_checkoutHand the customer to the e-eSIM shop to buy one plan. Returns buy_url (the product page where they tap Buy now to pay securely — card, Apple Pay, Google Pay) plus the plan name and price. No account needed; the eSIM is emailed right after payment. There is no in-chat order tracking and no discount-code field.
product_idintegerrequiredlanguagestring
Availability history
Each block is one measurement round. Green: working response. Amber: responded but the server was returning errors (5xx). Red: no response at all.
Era history
Each cell is one probe run. Faded cells are incomplete probes — one leg did not answer, so the era is inconclusive.
Response time history
The two probe legs separately: modern server/discover and legacy initialize.
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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