MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Code & DevOps

Basis Theory MCP by usefulapi

By usefulapi.io Verified namespace

Read token metadata, applications, audit logs, proxies and usage in the PCI vault.

WebsiteSource code
Connect to Basis Theory MCP by usefulapi
Checks passed
14 / 22

0 failed · 8 not measured

Median response
145 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
17

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 145 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name basis-theory-mcp.

  • Pass
    Lists tools

    tools/list returned 17 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 145 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 145 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    30 of 30 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-10T23:33:18.943801Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using Basis Theory MCP by usefulapi

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http basis-theory-mcp-by-usefulapi https://basis-theory.usefulapi.io/mcp

Capabilities

Tools 17

basis_theory_get_application

Fetch a single application with its type and permission list. Basis Theory: GET /applications/{id}.

Discovered
basis_theory_get_proxy

Fetch a single proxy with its destination URL and transform configuration. Basis Theory: GET /proxies/{id}.

Discovered
basis_theory_get_reactor

Fetch a single reactor with its configuration. Basis Theory: GET /reactors/{id}.

Discovered
basis_theory_get_tenant

Fetch the current tenant — name, id and settings. Basis Theory: GET /tenants/self.

Discovered
basis_theory_get_tenant_usage

Fetch the tenant's usage report — token counts by type and container, and monthly API call volume. Basis Theory: GET /tenants/self/reports/usage.

Discovered
basis_theory_get_token

Fetch a single token by id. Returns metadata, container, fingerprint and timestamps. WARNING: if the configured API key carries a reveal permission, the response also contains the token's plaintext data — issue this server a read-only management key instead. Basis Theory: GET /tokens/{id}.

Discovered
basis_theory_list_applications

List the applications (API-key holders) in the tenant, with their types and permissions. Basis Theory: GET /applications.

Discovered
basis_theory_list_log_entity_types

List the entity types the audit log records — the valid values for entity_type. Basis Theory: GET /logs/entity-types.

Discovered
basis_theory_list_logs

List audit-log entries — who did what to which entity and when. The tool for answering 'who touched this token?'. Basis Theory: GET /logs.

Discovered
basis_theory_list_permissions

List the permissions that can be granted to an application, optionally for one application type. Basis Theory: GET /permissions.

Discovered
basis_theory_list_proxies

List the proxies that forward requests to third parties, detokenizing in flight. Basis Theory: GET /proxies.

Discovered
basis_theory_list_reactors

List reactors — the serverless functions that run against detokenized data inside the vault. Basis Theory: GET /reactors.

Discovered
basis_theory_list_roles

List the roles available for tenant members. Basis Theory: GET /roles.

Discovered
basis_theory_list_tenant_members

List the people with access to the tenant, and their roles. Basis Theory: GET /tenants/self/members.

Discovered
basis_theory_list_tokens

List vault tokens as METADATA — id, type, container, fingerprint, metadata and timestamps. Does not return the underlying card number or PII. Basis Theory: GET /v2/tokens.

Discovered
basis_theory_search_tokens

Search tokens with Basis Theory's query syntax over metadata, e.g. metadata.customer_id:"cus_1". Returns metadata only. Read-only despite being a POST — the query goes in the body. Basis Theory: POST /v2/tokens/search.

Discovered
basis_theory_whoami

Return the application the configured BT-API-KEY belongs to — the fastest way to check which permissions this server actually has. Basis Theory: GET /applications/key.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected145 ms17

Related servers

All alternatives

Same function and industry, ranked by checks passed then median latency.

Explore alternatives to Basis Theory MCP by usefulapi