pulse-verity

Get Pulse Verity Index Batch

get_index_batch

Read-only

Fetches up to 100 crypto symbols in one batch request, returning signed successful observations and per-symbol errors for unavailable rows.

Instructions

Read up to 100 crypto symbols in one /api/index/v1/batch request. Returns observations with individually signed successful rows and per-symbol errors for unavailable rows. Your plan may allow fewer symbols per request: get_account_status shows batchMaxSymbols, and a larger request is refused with code TOO_MANY_SYMBOLS, batchLimit and requested, so split it. Verify each successful row with verify_print and require recordValid=true before trusting its quality fields. Surrounding batch metadata is unsigned. No automatic retries. Needs a developer key (PULSE_API_KEY) or the hosted server.

Input Schema

Name	Required	Description	Default
`symbols`	Yes

Output Schema

Name	Required	Description
`error`	No
`success`	No
`returned`	No
`requestId`	Yes	Identifier for this MCP call; not a signed price field.
`requested`	No
`observations`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed3 schema fields changedv1.3.6Oct 22, 2026

addedOutput schema / properties / error / properties / batchLimit

Added value: +{
+  "maximum": 100000,
+  "minimum": 1,
+  "type": "integer"
+}

addedOutput schema / properties / error / properties / plan

Added value: +{
+  "enum": [
+    "Developer",
+    "Basic",
+    "Builder",
+    "Commercial",
+    "Enterprise"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / error / properties / requested

Added value: +{
+  "maximum": 100000,
+  "minimum": 1,
+  "type": "integer"
+}

Changed6 schema fields changedv1.3.3Oct 18, 2026

addedOutput schema / properties / error / properties / capacityAction

Added value: +{
+  "enum": [
+    "review_plans",
+    "contact_support"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / error / properties / getKeyUrl

Added value: +{
+  "maxLength": 256,
+  "pattern": "^https:\\/\\/thepulse\\.markets\\/developers(?:[/?#][^\\s]*)?$",
+  "type": "string"
+}

addedOutput schema / properties / error / properties / hostedServerUrl

Added value: +{
+  "const": "https://mcp.thepulse.markets/api/index/mcp",
+  "type": "string"
+}

changedOutput schema / properties / error / properties / nextAction / enum

Previous value: -[
-  "wait",
-  "review_access",
-  "check_limits",
-  "reconnect",
-  "check_input",
-  "choose_another_symbol",
-  "report_issue"
-]New value: +[
+  "wait",
+  "review_access",
+  "check_limits",
+  "reconnect",
+  "check_input",
+  "choose_another_symbol",
+  "report_issue",
+  "get_key"
+]

addedOutput schema / properties / error / properties / resetAt

Added value: +{
+  "pattern": "^\\d{4}-(0[1-9]|1[0-2])-(0[1-9]|[12]\\d|3[01])T([01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d\\.\\d{3}Z$",
+  "type": "string"
+}

addedOutput schema / properties / error / properties / upgradeUrl

Added value: +{
+  "const": "https://thepulse.markets/developers#/portal/pricing",
+  "type": "string"
+}

Changed1 schema field changedv1.3.0Sep 30, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": false,
+  "properties": {
+    "error": {
+      "additionalProperties": false,
+      "properties": {
+        "accountUrl": {
+          "const": "https://thepulse.markets/developers/access",
+          "type": "string"
+        },
+        "code": {
+          "pattern": "^[A-Z][A-Z0-9_]{0,79}$",
+          "type": "string"
+        },
+        "nextAction": {
+          "enum": [
+            "wait",
+            "review_access",
+            "check_limits",
+            "reconnect",
+            "check_input",
+            "choose_another_symbol",
+            "report_issue"
+          ],
+          "type": "string"
+        },
+        "retryAfterSeconds": {
+          "maximum": 86400,
+          "minimum": 1,
+          "type": "integer"
+        },
+        "retryable": {
+          "type": "boolean"
+        }
+      },
+      "required": [
+        "code",
+        "nextAction"
+      ],
+      "type": "object"
+    },
+    "observations": {
+      "items": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "at": {
+                "maxLength": 40,
+                "type": "string"
+              },
+              "cadence": {
+                "anyOf": [
+                  {
+                    "additionalProperties": false,
+                    "properties": {
+                      "band": {
+                        "enum": [
+                          "real-time",
+                          "five-second",
+                          "ten-second",
+                          "slow",
+                          "unavailable"
+                        ],
+                        "type": "string"
+                      },
+                      "calculatedAgeMs": {
+                        "anyOf": [
+                          {
+                            "$ref": "#/properties/observations/items/anyOf/0/properties/confidence/anyOf/0"
+                          },
+                          {
+                            "type": "null"
+                          }
+                        ]
+                      },
+                      "newestSourceAgeMs": {
+                        "anyOf": [
+                          {
+                            "$ref": "#/properties/observations/items/anyOf/0/properties/confidence/anyOf/0"
+                          },
+                          {
+                            "type": "null"
+                          }
+                        ]
+                      },
+                      "oldestSourceAgeMs": {
+                        "anyOf": [
+                          {
+                            "$ref": "#/properties/observations/items/anyOf/0/properties/confidence/anyOf/0"
+                          },
+                          {
+                            "type": "null"
+                          }
+                        ]
+                      },
+                      "p50UpdateMs": {
+                        "anyOf": [
+                          {
+                            "$ref": "#/properties/observations/items/anyOf/0/properties/confidence/anyOf/0"
+                          },
+                          {
+                            "type": "null"
+                          }
+                        ]
+                      },
+                      "p95UpdateMs": {
+                        "anyOf": [
+                          {
+                            "$ref": "#/properties/observations/items/anyOf/0/properties/confidence/anyOf/0"
+                          },
+                          {
+                            "type": "null"
+                          }
+                        ]
+                      },
+                      "updatesLast120s": {
+                        "$ref": "#/properties/observations/items/anyOf/0/properties/sources/anyOf/0"
+                      }
+                    },
+                    "required": [
+                      "band",
+                      "calculatedAgeMs",
+                      "newestSourceAgeMs",
+                      "oldestSourceAgeMs",
+                      "p50UpdateMs",
+                      "p95UpdateMs"
+                    ],
+                    "type": "object"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "confidence": {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "dispersionBps": {
+                "anyOf": [
+                  {
+                    "$ref": "#/properties/observations/items/anyOf/0/properties/confidence/anyOf/0"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "engine": {
+                "anyOf": [
+                  {
+                    "maxLength": 64,
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "getKey": {
+                "maxLength": 256,
+                "type": "string"
+              },
+              "grade": {
+                "enum": [
+                  "consensus",
+                  "blended",
+                  "indicative",
+                  "composite",
+                  "single-source"
+                ],
+                "type": "string"
+              },
+              "interval": {
+                "anyOf": [
+                  {
+                    "additionalProperties": false,
+                    "properties": {
+                      "lower": {
+                        "anyOf": [
+                          {
+                            "$ref": "#/properties/observations/items/anyOf/0/properties/confidence/anyOf/0"
+                          },
+                          {
+                            "type": "null"
+                          }
+                        ]
+                      },
+                      "upper": {
+                        "anyOf": [
+                          {
+                            "$ref": "#/properties/observations/items/anyOf/0/properties/confidence/anyOf/0"
+                          },
+                          {
+                            "type": "null"
+                          }
+                        ]
+                      }
+                    },
+                    "required": [
+                      "lower",
+                      "upper"
+                    ],
+                    "type": "object"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "kid": {
+                "pattern": "^[A-Za-z0-9._:-]{1,64}$",
+                "type": "string"
+              },
+              "note": {
+                "maxLength": 2048,
+                "type": "string"
+              },
+              "price": {
+                "exclusiveMinimum": 0,
+                "type": "number"
+              },
+              "priceText": {
+                "maxLength": 100,
+                "minLength": 1,
+                "type": "string"
+              },
+              "sample": {
+                "const": true,
+                "type": "boolean"
+              },
+              "sig": {
+                "const": "pulse-index-v1",
+                "type": "string"
+              },
+              "signature": {
+                "maxLength": 88,
+                "minLength": 88,
+                "pattern": "^[A-Za-z0-9+/]{86}==$",
+                "type": "string"
+              },
+              "sources": {
+                "anyOf": [
+                  {
+                    "minimum": 0,
+                    "type": "integer"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "success": {
+                "const": true,
+                "type": "boolean"
+              },
+              "symbol": {
+                "pattern": "^[A-Za-z0-9]{1,20}$",
+                "type": "string"
+              },
+              "tier": {
+                "anyOf": [
+                  {
+                    "maxLength": 20,
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "v2": {
+                "additionalProperties": false,
+                "properties": {
+                  "canonical": {
+                    "maxLength": 8192,
+                    "minLength": 1,
+                    "type": "string"
+                  },
+                  "kid": {
+                    "$ref": "#/properties/observations/items/anyOf/0/properties/kid"
+                  },
+                  "sig": {
+                    "const": "pulse-index-v2",
+                    "type": "string"
+                  },
+                  "signature": {
+                    "$ref": "#/properties/observations/items/anyOf/0/properties/signature"
+                  }
+                },
+                "required": [
+                  "sig",
+                  "canonical",
+                  "signature",
+                  "kid"
+                ],
+                "type": "object"
+              }
+            },
+            "required": [
+              "symbol",
+              "price",
+              "at",
+              "grade",
+              "signature",
+              "success"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "properties": {
+              "code": {
+                "maxLength": 80,
+                "type": "string"
+              },
+              "message": {
+                "maxLength": 512,
+                "type": "string"
+              },
+              "success": {
+                "const": false,
+                "type": "boolean"
+              },
+              "symbol": {
+                "maxLength": 20,
+                "type": "string"
+              }
+            },
+            "required": [
+              "success",
+              "symbol",
+              "code",
+              "message"
+            ],
+            "type": "object"
+          }
+        ]
+      },
+      "maxItems": 100,
+      "type": "array"
+    },
+    "requestId": {
+      "description": "Identifier for this MCP call; not a signed price field.",
+      "format": "uuid",
+      "type": "string"
+    },
+    "requested": {
+      "maximum": 100,
+      "minimum": 0,
+      "type": "integer"
+    },
+    "returned": {
+      "maximum": 100,
+      "minimum": 0,
+      "type": "integer"
+    },
+    "success": {
+      "const": true,
+      "type": "boolean"
+    }
+  },
+  "required": [
+    "requestId"
+  ],
+  "type": "object"
+}

First observedv1.1.0Sep 9, 2026

TDQS

A4.8/5.0

Behavior5/5

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

Beyond the readOnly/destructive annotations it discloses non-obvious traits: successful rows are individually signed while surrounding batch metadata is unsigned, failures are reported per-symbol rather than failing the whole call, there are no automatic retries, and the failure payload includes batchLimit and requested. It also names the auth requirement (PULSE_API_KEY or hosted server), which annotations cannot express.

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

Conciseness4/5

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

Front-loaded with the operation and scope, then each subsequent sentence carries distinct operational information (return shape, plan limits, verification, auth). The error-handling sentence is dense and run-on ('refused with code TOO_MANY_SYMBOLS, batchLimit and requested, so split it'), which slightly hurts scanability but no sentence is filler.

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

Completeness5/5

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

For a one-parameter batch read with an output schema, this covers everything an agent needs to invoke it correctly: the cap, the dynamic plan limit and its error signature, per-row error semantics, the mandatory verification step via verify_print, retry behavior, and auth. Nothing material is left to inference.

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

Parameters4/5

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

One parameter, and the schema only documents the item format ('Crypto ticker symbol, e.g. BTC, ETH, SOL'); the description adds genuinely new meaning by explaining that the effective per-request symbol ceiling is plan-dependent (batchMaxSymbols) rather than the static maxItems of 100. It does not restate validation rules such as the alphanumeric pattern or 20-char limit, which is acceptable since the schema covers those.

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

Purpose5/5

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

States a specific verb and resource ('Read up to 100 crypto symbols in one /api/index/v1/batch request') with an explicit scope boundary (100 symbols, batched), which is enough to separate it from the single-symbol get_index_price sibling without opening either schema. The batch semantics and endpoint are named in the first sentence.

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

Usage Guidelines5/5

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

Gives concrete when/how guidance rather than vague context: check get_account_status for batchMaxSymbols, split the request on TOO_MANY_SYMBOLS, and verify each successful row with verify_print requiring recordValid=true before trusting quality fields. It also names the alternative tool for the plan-limit case, which is exactly the routing an agent needs.

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

Deploy Server