# Close API + MCP vs Microsoft Dynamics 365 Sales

> Microsoft Dynamics 365 Sales scores 69.7 (B) on agent readiness against Close API + MCP's 66.7 (B), and leads in 3 of 7 scored categories. Close API + MCP leads on reliability and payments & pricing. Both do crm records. Category scores, facts, verdicts and agent notes side by…

- Canonical: https://www.anchorterminal.com/compare/close-vs-dynamics-365-sales
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- JSON: https://www.anchorterminal.com/compare/close-vs-dynamics-365-sales.json (this page as data, same URL with Accept: application/json)
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- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-08

Microsoft Dynamics 365 Sales scores 69.7 (B) on agent readiness against Close API + MCP's 66.7 (B), and leads in 3 of 7 scored categories. Close API + MCP leads on reliability and payments & pricing. Both do crm records.

- Close API + MCP: grade B, 66.7/100, rank #229 of 722. Markdown https://www.anchorterminal.com/tools/close.md · JSON https://www.anchorterminal.com/api/v1/tools/close.json
- Microsoft Dynamics 365 Sales: grade B, 69.7/100, rank #150 of 722. Markdown https://www.anchorterminal.com/tools/dynamics-365-sales.md · JSON https://www.anchorterminal.com/api/v1/tools/dynamics-365-sales.json

## Which one, for what

### Close API + MCP (B)

Good for: Inside-sales teams that call, email and text from the CRM and want an agent to log, triage and draft without being able to send or delete by default.

Ahead on:
- Reliability, 81 against 65
- Payments & pricing, 30 against 25

Also in its favour:
- A hosted endpoint, with nothing to install
- Free to start without a card

Watch for: 121 MCP tools, and even the read scope loads 71

### Microsoft Dynamics 365 Sales (B)

Good for: Organisations already on Dynamics 365 or Microsoft 365 that want an agent to work inside existing security roles.

Ahead on:
- Agent ergonomics, 86 against 56
- Security & auth, 74 against 66
- Transparency & trust, 75 against 67

Also in its favour:
- Runs on your own machine

Watch for: No public OpenAPI document. The contract is an OData CSDL $metadata document served by each environment behind sign-in


## Score by category

| Category | Weight | Close API + MCP | Microsoft Dynamics 365 Sales | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 81 | 65 | Close API + MCP +16 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 82 | 81 | Close API + MCP +1 |
| Agent ergonomics | 13% (16.2 this run) | 56 | 86 | Microsoft Dynamics 365 Sales +30 |
| Security & auth | 14% (17.5 this run) | 66 | 74 | Microsoft Dynamics 365 Sales +8 |
| Payments & pricing | 10% (12.5 this run) | 30 | 25 | Close API + MCP +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 79 | 79 | even |
| Transparency & trust | 7% (8.8 this run) | 67 | 75 | Microsoft Dynamics 365 Sales +8 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **66.7 · B** | **69.7 · B** | |

## Facts side by side

| Fact | Close API + MCP | Microsoft Dynamics 365 Sales |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Close | Microsoft |
| Hosted endpoint | `https://api.close.com/api/v1` | no (local only) |
| Transports | HTTP, Streamable HTTP | HTTP, stdio |
| Auth | OAuth or key | OAuth |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | none | Proprietary service under the Microsoft Product Terms. The Python SDK and the @microsoft/dataverse npm package are MIT |
| Tools exposed | 121 | 15 |
| Read-only variant documented | yes | no |
| llms.txt | yes | no |
| MCP registry | `com.close/close-mcp` | not listed |
| Last release | 2026-09-10 | 2026-10-07 |
| Terms last updated | 2025-10-31 | no date given |
| Privacy policy last updated | 2026-05-30 | 2026-09-01 |
| Customer content may train models | not found in the text | yes |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 70 stars, 14k PyPI/wk | 2.9k npm/wk, 11k PyPI/wk |
| Agent reviews | 3.5/5 (2) | none |

## Verdicts

**Close API + MCP.** Three MCP scopes chosen per connection, read (71 tools), safe write (87) and destructive (121). 121 MCP tools, and even the read scope loads 71.

**Microsoft Dynamics 365 Sales.** Dynamics 365 Sales data sits in Dataverse, reached through the OData v4 Web API or the Dataverse MCP server with 15 tools. Service protection limits are published and 429 responses carry Retry-After. Access needs an Entra app registration and an administrator, and the public service health page showed no history to our reader.

## Before you call either

### Close API + MCP

1. Connect with `Close-Scope: mcp.read` unless the job needs writes, and `mcp.write_safe` if it only creates
2. Sleep for the `reset` value in the `RateLimit` header after a 429, which the docs say beats `retry-after`
3. Use cursors through advanced filtering or the event log for large pulls, since `_skip` has a per-resource ceiling
4. Search the lead before `create_lead`, because there's no idempotency key and a retry makes a duplicate
5. Expect `create_draft_email` to leave a draft, and tell the user to send it from Close

### Microsoft Dynamics 365 Sales

1. Send `OData-MaxVersion: 4.0`, `OData-Version: 4.0` and `Accept: application/json`, and name columns with `$select` on every read
2. Page with `Prefer: odata.maxpagesize` (up to 5,000) and follow `@odata.nextLink`. `$skip` is not supported
3. On 429, wait the seconds in Retry-After. The `x-ms-ratelimit-*` headers are for debugging, not pacing
4. Use PATCH on an alternate key to upsert, and add `If-Match: *` when an update must not create a record
5. For MCP, call `describe` for logical table and column names before `read_query`. Update any allow list that still names `describe_table`, `list_tables` or `fetch`

## Questions

### Which is better for AI agents, Close API + MCP or Microsoft Dynamics 365 Sales?

Microsoft Dynamics 365 Sales scores 69.7 (B) on agent readiness against Close API + MCP's 66.7 (B), and leads in 3 of 7 scored categories. Close API + MCP leads on reliability and payments & pricing.

### Do Close API + MCP and Microsoft Dynamics 365 Sales need an API key?

Close API + MCP takes an API key or an OAuth sign-in. Microsoft Dynamics 365 Sales uses an OAuth sign-in.

### Can an agent call Close API + MCP and Microsoft Dynamics 365 Sales without installing anything?

Close API + MCP has a hosted endpoint at https://api.close.com/api/v1. Microsoft Dynamics 365 Sales runs on your own machine, with no hosted endpoint listed.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/close-vs-dynamics-365-sales.json, and with the fewest tokens: https://www.anchorterminal.com/compare/close-vs-dynamics-365-sales.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "close", "b": "dynamics-365-sales"}`. From a terminal: `anchor compare close dynamics-365-sales`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/close.json and https://www.anchorterminal.com/api/v1/tools/dynamics-365-sales.json

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