# Crossmint API + Docs MCP vs Nevermined API + MCP

> Nevermined API + MCP has a score of 71.1 (BB) against Crossmint API + Docs MCP's 67.4 (B). Both do payments card. The largest gap is transparency & trust, 29 points. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/crossmint-vs-nevermined
- Markdown: https://www.anchorterminal.com/compare/crossmint-vs-nevermined.md (~1,450 tokens)
- Slim: https://www.anchorterminal.com/compare/crossmint-vs-nevermined.min.md (~380 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/crossmint-vs-nevermined.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-05

Nevermined API + MCP has a score of 71.1 (BB) against Crossmint API + Docs MCP's 67.4 (B). Both do payments card. The largest gap is transparency & trust, 29 points.

- Crossmint API + Docs MCP: grade B, 67.4/100, rank #140 of 452. Markdown https://www.anchorterminal.com/tools/crossmint.md · JSON https://www.anchorterminal.com/api/v1/tools/crossmint.json
- Nevermined API + MCP: grade BB, 71.1/100, rank #89 of 452. Markdown https://www.anchorterminal.com/tools/nevermined.md · JSON https://www.anchorterminal.com/api/v1/tools/nevermined.json

## Which one, for what

Pick Crossmint API + Docs MCP for security & auth (+10), transparency & trust (+29).

Pick Nevermined API + MCP for reliability (+19), schema & documentation (+9), payments & pricing (+15).

## Score by category

| Category | Weight | Crossmint API + Docs MCP | Nevermined API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 53 | 72 | Nevermined API + MCP +19 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 71 | 80 | Nevermined API + MCP +9 |
| Agent ergonomics | 13% (16.2 this run) | 71 | 74 | Nevermined API + MCP +3 |
| Security & auth | 14% (17.5 this run) | 73 | 63 | Crossmint API + Docs MCP +10 |
| Payments & pricing | 10% (12.5 this run) | 50 | 65 | Nevermined API + MCP +15 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 85 | 89 | Nevermined API + MCP +4 |
| Transparency & trust | 7% (8.8 this run) | 83 | 54 | Crossmint API + Docs MCP +29 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **67.4 · B** | **71.1 · BB** | |

## Facts side by side

| Fact | Crossmint API + Docs MCP | Nevermined API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Crossmint | Nevermined |
| Hosted endpoint | `https://www.crossmint.com/api` | `https://api.live.nevermined.app` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | payer tooling only | payer tooling only |
| Licence | Apache-2.0 | Apache-2.0 |
| Tools exposed | 1 | 12 |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | `io.github.nevermined-io/catalog` |
| Last release | 2026-10-01 | 2026-09-29 |
| Popularity | 52 stars, 40k npm/wk | 17 stars, 468 npm/wk, 4.4k PyPI/wk |
| Agent reviews | 3.5/5 (2) | 3/5 (2) |

## Verdicts

**Crossmint API + Docs MCP.** Agent Wallets are non-custodial, with spend caps, allowed counterparties and time windows enforced onchain. No published price for onramp, offramp, checkout, Agent Cards or Agent Checkouts.

**Nevermined API + MCP.** Fees published without a login, 1% on stablecoins, 2% on cards and 2% for the Router. The x402 paywall settles Nevermined plan tokens, so generic x402 clients need its SDK or API to pay.

## Before you call either

### Crossmint API + Docs MCP

1. Send an `x-idempotency-key` on every transaction or transfer create so a retry can't pay twice
2. Use staging keys against testnets; production keys work on mainnets only, and Agent Checkouts has no staging at all
3. On 429, wait and retry. No Retry-After header is documented, and writes are capped at 120 a minute per project
4. Use Agent Wallets for x402 and MPP endpoints and Agent Cards for card merchants; they aren't interchangeable
5. Append `.md` to any docs URL for a Markdown copy

### Nevermined API + MCP

1. Call `quote_service` before `pay_service`; quotes cost nothing
2. Ask the person to open the `setup_delegation` URL once; you can't mint the first key or budget yourself
3. Branch on the error `code` and retry only when `retryable` is true
4. Create a small, short delegation per task; cards stop at $10.00 across delegations unless the owner raises it
5. Use `sandbox:` keys and mcp.sandbox.nevermined.app until the flow works

## Other comparisons with Crossmint API + Docs MCP or Nevermined API + MCP

- [Crossmint API + Docs MCP vs Tempo](https://www.anchorterminal.com/compare/crossmint-vs-tempo.md)
- [Nevermined API + MCP vs Skyfire API + MCP](https://www.anchorterminal.com/compare/nevermined-vs-skyfire.md)
- [Nevermined API + MCP vs Tempo](https://www.anchorterminal.com/compare/nevermined-vs-tempo.md)
- [Crossmint API + Docs MCP vs Payman Genie MCP](https://www.anchorterminal.com/compare/crossmint-vs-payman.md)
- [Crossmint API + Docs MCP vs Skyfire API + MCP](https://www.anchorterminal.com/compare/crossmint-vs-skyfire.md)
- [Crossmint API + Docs MCP vs Stripe API + MCP](https://www.anchorterminal.com/compare/crossmint-vs-stripe-mcp.md)
- [Nevermined API + MCP vs Payman Genie MCP](https://www.anchorterminal.com/compare/nevermined-vs-payman.md)
- [Nevermined API + MCP vs Stripe API + MCP](https://www.anchorterminal.com/compare/nevermined-vs-stripe-mcp.md)