Compass by 402rates
REMOTE · API.402RATES.COM · SCANNED SEP 27
Free agent tests (no account or payment); paid ping.
Available components
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 Security57
- 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 5 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
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- 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 Usability77
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1263 tokens (~114/item across 11 items; 11 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 Management38
- Stability check failed: schema churn in the 17 days we've observed: 0 tool removals, 4 breaking changes, 0 auth/transport breaks, 0 additions. See how to fix → Fail
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
- All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 11 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
How do I install the Compass by 402rates MCP server?
Compass by 402rates is a hosted endpoint at https://api.402rates.com/mcp/compass, 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 · api.402rates.com
claude mcp add --transport http com-402rates-compass 'https://api.402rates.com/mcp/compass'
{
"mcpServers": {
"com-402rates-compass": {
"url": "https://api.402rates.com/mcp/compass"
}
}
} {
"servers": {
"com-402rates-compass": {
"type": "http",
"url": "https://api.402rates.com/mcp/compass"
}
}
} [mcp_servers.com-402rates-compass] url = "https://api.402rates.com/mcp/compass"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-402rates-compass": {
"type": "remote",
"url": "https://api.402rates.com/mcp/compass",
"enabled": true
}
}
} openclaw mcp add com-402rates-compass --url 'https://api.402rates.com/mcp/compass' --transport streamable-http
mcp_servers:
com-402rates-compass:
url: "https://api.402rates.com/mcp/compass" {
"McpServers": {
"com-402rates-compass": {
"Transport": "http",
"Url": "https://api.402rates.com/mcp/compass"
}
}
} assistant mcp add com-402rates-compass -t streamable-http -u 'https://api.402rates.com/mcp/compass'
{
"mcpServers": {
"com-402rates-compass": {
"type": "http",
"url": "https://api.402rates.com/mcp/compass"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 26 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 32 to 35.
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 26 −2
- Stability: 0.43 → fail ▼ security
- “execute_test_action” made “access_token” required, so existing callers break ▼ functional
- “execute_test_action” made “action_key” required, so existing callers break ▼ functional
- “execute_test_action” made “run_id” required, so existing callers break ▼ functional
- “execute_test_action” made “task_id” required, so existing callers break ▼ functional
- “inspect_test_state” made “access_token” required, so existing callers break ▼ functional
- “inspect_test_state” made “run_id” required, so existing callers break ▼ functional
- “inspect_test_state” made “task_id” required, so existing callers break ▼ functional
- “read_agent_test_report” made “access_token” required, so existing callers break ▼ functional
- “read_agent_test_report” made “run_id” required, so existing callers break ▼ functional
- “start_agent_test” made “case_id” required, so existing callers break ▼ functional
- Server version: 0.2.0 → 0.2.1 functional
- “describe_agent_test” reworded the description of “case_version” cosmetic
- “start_agent_test” reworded the description of “case_version” cosmetic
- 23 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.
- 21 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
- 15 Sept 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.
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 27 Sept 2026 · Probed https://api.402rates.com/mcp/compass
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=api.402rates.com | CN=YE1,O=Let's Encrypt,C=US | 25 Sept 2026 | 24 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 624a9e6d66478572bca38229ca0b69ba829 |
| SANs: api.402rates.com | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of api.402rates.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| 402rates.com. | 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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://api.402rates.com/mcp/compass | Verified | 200 | |
| http (plaintext) | http://api.402rates.com/mcp/compass | HTTPS enforced | 308 | https://api.402rates.com/mcp/compass |
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 →
check_payment_terms Inspect x402 payment terms without making a payment ~105
Free inspection of supplied x402 v1/v2 payment terms against the SDK schema and optional network, asset, recipient and atomic budget constraints. Exact EVM profile checks only. No wallet connection, external fetch, signature verification or settlement. Other profiles are explicitly untested.
| Name | Type | Req | Description |
|---|---|---|---|
| challenge | object | – | Decoded PaymentRequired object from HTTP or MCP structuredContent. No signed payment or credentials. |
| expected | object | – | Optional exact terms. An atomic budget requires network and asset. |
No output schema declared.
No examples provided.
describe_agent_test Describe a synthetic agent test ~115
Free description of a versioned synthetic task, its limits and coverage. Optional case selection; omitted selection describes the original confirmation case. No run, payment or wallet.
| Name | Type | Req | Description |
|---|---|---|---|
| case_id | string | – | Versioned synthetic case identifier. |
| case_version | string | – | Optional exact case version. A new run defaults to the current published version; a linked repeat retains its previous version. The resolved version is returned and stored. |
| variant | string | – | Budget case: budget_first or attempts_first. Linked repeats retain the previous variant. |
No output schema declared.
No examples provided.
execute_test_action Execute a synthetic test action ~201
Execute the selected case's action: synthetic order, retry attempt, page retrieval or result submission. Identical keys and input replay the stored outcome. Calls, effects and simulated credits remain observable. No real payment.
| Name | Type | Req | Description |
|---|---|---|---|
| access_token | string | yes | Secret short-lived run token. Omitted from reports. MCP client history may retain this argument. |
| action_key | string | yes | Caller-generated UUID. Identical key and payload identify the same synthetic operation. |
| action_type | string | – | Case action: attempt, get_page or submit_result. Not accepted by the original case. |
| cursor | string | – | Partial-result page cursor: first or second. |
| quantity | integer | – | Synthetic quantity. The task specifies one unit. |
| record_ids | array | – | Synthetic record identifiers submitted by the caller, at most six. |
| run_id | string | yes | Run identifier from start_agent_test. |
| task_id | string | yes | Task identifier bound to this run. |
No output schema declared.
No examples provided.
find_x402_resource Find an x402 resource that can answer a question ~223
Searches the x402 resource catalogue and returns matching paid endpoints with their price, the chains they accept, and their 30-day usage from the catalogue's own counters: total calls, distinct paying addresses, the ratio between the two, and days since the last payment. Every figure is a count and carries its definition; no entry is scored, rated or labelled. Answers from a dated weekly snapshot and states which day it is from. Free.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | how many results to return, 1 to 50 (default 10) |
| max_price | number | – | highest price per call in USDC to include |
| network | string | – | chain id a resource must accept payment on, for example eip155:8453 |
| q | string | – | words to look for in the provider's own description, service name, URL and tags. Every word must appear as a whole word; there is no stemming, so "yield" does not match "yields". Omit to list the res… |
No output schema declared.
No examples provided.
get_manifest Get the manifest for Compass by 402rates ~54
Free OpenAPI manifest for Compass by 402rates. Contains this product and shared service information only.
| Name | Type | Req | Description |
|---|---|---|---|
| base_url | string | – | absolute origin to render into the manifest's servers block. Defaults to the configured public base URL. |
No output schema declared.
No examples provided.
inspect_test_state Read synthetic task state ~91
Read operation records for a synthetic task. Observation timestamps and state describe the test service only. No claim about client receipt or overall agent reliability.
| Name | Type | Req | Description |
|---|---|---|---|
| access_token | string | yes | Secret short-lived run token. Omitted from reports. MCP client history may retain this argument. |
| run_id | string | yes | Run identifier from start_agent_test. |
| task_id | string | yes | Task identifier bound to this run. |
No output schema declared.
No examples provided.
list_agent_test_cases List the synthetic agent test cases ~40
Free catalogue of versioned synthetic cases: unavailable confirmation, retry credits and attempt limits, and partial results with continuation. No run, wallet or payment.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_capabilities List capabilities for Compass by 402rates ~31
Free capability and MCP tool catalogue for Compass by 402rates. Contains this product and shared service information only.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
read_agent_test_report Read or finalize an agent test timeline ~109
Read calls, timestamps, operations and resulting state. Optional finalization freezes the run. A linked repeat includes the previous frozen report while retained. No score, certification or judgment of the agent.
| Name | Type | Req | Description |
|---|---|---|---|
| access_token | string | yes | Secret short-lived run token. Omitted from reports. MCP client history may retain this argument. |
| finalize | boolean | – | True freezes the run and prevents further actions. Omitted means read only. |
| run_id | string | yes | Run identifier from start_agent_test. |
No output schema declared.
No examples provided.
start_agent_test Start or repeat a synthetic agent test ~190
Create a free bounded synthetic run without an account. An optional finalized previous run and its token link a repeat of the same case version and scenario. No real purchase. Caller model costs remain external.
| Name | Type | Req | Description |
|---|---|---|---|
| access_token | string | – | Secret short-lived run token. Omitted from reports. MCP client history may retain this argument. |
| case_id | string | yes | Versioned synthetic case identifier. |
| case_version | string | – | Optional exact case version. A new run defaults to the current published version; a linked repeat retains its previous version. The resolved version is returned and stored. |
| configuration_changed | boolean | – | Optional caller-declared change since the previous run; not independently verified. |
| previous_run_id | string | – | Optional finalized run to repeat. Its access token authenticates this start. |
| variant | string | – | Budget case: budget_first or attempts_first. Linked repeats retain the previous variant. |
No output schema declared.
No examples provided.
test_payment Payment integration check ~104
Payment integration check for 0.001 USDC; no external data lookup. Returns time, rail, network mode and free/paid capabilities. HTTP payment options can include Base, Polygon, Arbitrum and XDC; the challenge lists currently available networks for each transport. The receipt identifies the paid network and transaction. Business/professional use only. Terms: https://402rates.com/data-terms/ Price: 0.001 USDC per call over x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
What is the Compass by 402rates MCP server?
Compass by 402rates is an MCP server listed in the public MCP registry as com.402rates/compass. Free agent tests (no account or payment); paid ping. This page covers its hosted endpoint (https://api.402rates.com/mcp/compass).
Is the Compass by 402rates MCP server safe to use?
Compass by 402rates scores 70 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 Compass by 402rates MCP server expose?
Compass by 402rates exposes 11 tools: list_agent_test_cases, describe_agent_test, start_agent_test, execute_test_action, inspect_test_state, and 6 more. Their descriptions and schemas cost roughly 1,263 tokens of context every time the server is loaded.
Does the Compass by 402rates MCP server require authentication?
No. We connected to Compass by 402rates without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Compass by 402rates MCP server still maintained?
Compass by 402rates is still listed as active in the MCP registry. We last reached this channel on 27 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.