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BlindPay MCP Server

BlindPay MCP Server

by blindpaylabs
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

Put Instances Customers By Id

PutV1InstancesCustomersById
Idempotent

Update an existing customer's profile and KYC details for a specific instance by customer ID, including contact, identity, business, and document information.

Instructions

Update Customer

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "instance_id": "<instance_id>",
      "id": "<id>",
      "requestBody": "<requestBody>"
    },
    "name": "PutV1InstancesCustomersById"
  }
}

Input Schema

NameRequiredDescriptionDefault
idYes
instance_idYes
requestBodyYes
Idempotency-KeyNoOptional key to safely retry this request without performing the action twice. Retrying with the same key and an identical body replays the original response; reusing a key with a different body returns an error. Keys are kept for 24 hours.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv1.9.3

TDQS

C2/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=false, destructiveHint=false and idempotentHint=true, so the description carries a lighter burden, but it still discloses nothing about what the call does behaviorally: no mention that the nested requestBody is a KYC/customer profile payload, that URLs are re-hosted (as the schema notes for additional_info), or what a failed/partial update leaves behind. Nothing contradicts the annotations, but the description contributes essentially zero behavioral context for a large mutation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two words are technically concise but this is under-specification, not conciseness. There is no front-loaded content to structure because essentially no information is present.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

A complex, deeply nested customer-profile mutation with 25% schema coverage and no output schema needs far more than two words. An agent has no way to know preconditions, required-field interactions (e.g. tax_type when country is US), or what the response confirms.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is only 25% across 4 parameters, the lowest band, so the description must compensate — and it says nothing about any parameter. The three required inputs (id, instance_id, requestBody with its large nested required email/country contract) are entirely undocumented in prose.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose3/5

Does the description clearly state what the tool does and how it differs from similar tools?

"Update Customer" gives a verb (update) and a resource (customer), which translates the opaque tool name into plain semantics. However, it adds no scope: it does not say which customer fields are writable, that the update is scoped to an instance, or how it differs from sibling PostV1InstancesCustomers / GetV1InstancesCustomersById.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No when-to-use guidance at all. The agent is not told to prefer this over PostV1InstancesCustomers (create) or GetV1InstancesCustomersById (read), nor whether the call is a full replace (PUT) versus a partial patch, which is the critical routing decision in this sibling cluster.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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