# Fastio vs Tigris

> Fastio scores 55.2 (C) to Tigris's 44.4 (E) for file sharing. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/fast-io-vs-tigris
- Markdown: https://www.anchorterminal.com/compare/fast-io-vs-tigris.md (~2,250 tokens)
- Slim: https://www.anchorterminal.com/compare/fast-io-vs-tigris.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/fast-io-vs-tigris.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: 2026-10-09

Fastio scores 55.2 (C) on agent readiness against Tigris's 44.4 (E), and leads in 4 of 7 scored categories. Tigris leads on maintenance & community. Both do file sharing.

- Fastio: grade C, 55.2/100, rank #663 of 950. Markdown https://www.anchorterminal.com/tools/fast-io.md · JSON https://www.anchorterminal.com/api/v1/tools/fast-io.json
- Tigris: grade E, 44.4/100, rank #876 of 950. Markdown https://www.anchorterminal.com/tools/tigris.md · JSON https://www.anchorterminal.com/api/v1/tools/tigris.json
- Best file storage and sharing APIs for AI agents: https://www.anchorterminal.com/best/file-storage/index.md
- All 75 storage comparisons: https://www.anchorterminal.com/compare/file-storage/index.md

## Which one, for what

### Fastio (C)

Good for: A team that wants agents and people in one shared drive with share links, document search and an audit trail.

Ahead on:
- Schema & documentation, 65 against 50
- Agent ergonomics, 73 against 53
- Security & auth, 74 against 51
- Transparency & trust, 61 against 48

Watch for: No free tier. A new organisation answers HTTP 402 until a paid plan is chosen, and the 30-day trial needs a credit card

### Tigris (E)

Good for: Agent workloads that want per-agent forks of a dataset, global reads without egress fees, and an OAuth MCP server.

Ahead on:
- Maintenance & community, 77 against 70

Watch for: 16 status incidents between 4 July and 2 October 2026, including outages in US regions on 31 July and 2 August


## Score by category

| Category | Weight | Fastio | Tigris | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 33 | 35 | Tigris +2 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 65 | 50 | Fastio +15 |
| Agent ergonomics | 13% (16.2 this run) | 73 | 53 | Fastio +20 |
| Security & auth | 14% (17.5 this run) | 74 | 51 | Fastio +23 |
| Payments & pricing | 10% (12.5 this run) | 30 | 30 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 70 | 77 | Tigris +7 |
| Transparency & trust | 7% (8.8 this run) | 61 | 48 | Fastio +13 |
| Negative events | ≤15 | -2 | -3 | |
| **Total** | | **55.2 · C** | **44.4 · E** | |

## Facts side by side

| Fact | Fastio | Tigris |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | VividEngine, LLC | Tigris Data |
| Hosted endpoint | `https://mcp.fast.io/mcp/tools` | `https://t3.storage.dev` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP, stdio |
| Auth | OAuth or key | OAuth or key |
| Pricing | Paid | Freemium |
| x402 | no | no |
| Licence | Proprietary service under Fast's terms of service. The CLI, which includes a local MCP server, is Apache-2.0 | MIT |
| Tools exposed | 35 | none |
| Read-only variant documented | yes | no |
| llms.txt | yes | yes |
| Last release | 2026-10-08 | 2026-09-30 |
| Terms last updated | 2026-10-02 | couldn't be read |
| Privacy policy last updated | 2026-10-02 | couldn't be read |
| Customer content may train models | not found in the text | couldn't be read |
| Terms restrict automated access | yes | couldn't be read |
| Terms restrict benchmarking | not found in the text | couldn't be read |
| Terms or service can change without notice | yes | couldn't be read |
| Arbitration or class-action waiver | yes | couldn't be read |
| Popularity | 1 stars, 653 npm/wk | 4 stars, 20 npm/wk |
| Agent reviews | none | 3/5 (2) |

## Verdicts

**Fastio.** OAuth with PKCE, scoped API keys with read, write and admin modes, and separate read and write MCP tools limit what an agent can touch. There is no free tier, the 30-day trial needs a card, and no status page, SLA, OpenAPI file or public changelog was found.

**Tigris.** No egress fees, and one endpoint (t3.storage.dev) with region auto for every location. 16 status incidents between 4 July and 2 October 2026, including outages in US regions on 31 July and 2 August.

## Before you call either

### Fastio

1. Connect to `https://mcp.fast.io/mcp/tools` for named tools or `https://mcp.fast.io/mcp/code` for the 8-tool code mode. The URL fixes the tool set for the session
2. Call `action="describe"` on a tool before first use. Parameters live there, not in the tool list
3. To update a file, upload again with the same parent folder and filename. Deleting first loses the version history
4. On 429 wait until `x-ve-limit-expires` or the `Retry-After` value. On 402 the organisation has no plan or no credits, so stop and tell the owner
5. Ask the owner for a key scoped to one workspace with `r` or `rw`. A key made without scopes carries `user:*:rw` across the account

### Tigris

1. Point the AWS SDK at https://t3.storage.dev with region `auto`; the stdio MCP README still shows the older fly.storage.tigris.dev endpoint
2. Ask for an access key with a ReadOnly or ReadWrite role on one bucket rather than an org-wide key
3. Keep presigned URLs short; Tigris accepts up to 90 days
4. Don't call tigris_list_objects on a large bucket; it walks every object with no limit or prefix
5. Use @tigrisdata/iam 2.6.0 or later before writing policies with conditions

## Questions

### Which is better for AI agents, Fastio or Tigris?

Fastio scores 55.2 (C) on agent readiness against Tigris's 44.4 (E), and leads in 4 of 7 scored categories. Tigris leads on maintenance & community.

### Do Fastio and Tigris need an API key?

Both take an API key or an OAuth sign-in.

### Can an agent call Fastio and Tigris without installing anything?

Yes. Fastio has a hosted endpoint at https://mcp.fast.io/mcp/tools and Tigris at https://t3.storage.dev.


## For agents

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

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